RE: **stupid router tricks [7:32213]
And if you really feel like messing with someone - try telnetting into the router that they are working on and doing "CLEAR LINE 0" -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2002 5:00 PM To: [EMAIL PROTECTED] Subject: Re: **stupid router tricks [7:32213] I once had a student who Telnetted to every other router in the lab and changed the banner message of the day to say something like: SYNTAX ERROR ROUTER CANNOT INITIALIZE CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY Another good one is to change the router's hostname to # or > or to the name of some other router that you frequently Telnet to. ;-) Priscilla At 04:12 PM 1/16/02, Eric Waguespack wrote: >over the years, of working on cisco routers & >lurking in this group, I have learned a few 'cool' >tricks you can do with cisco routers, has anyone seen >a compiled list of "stupid router tricks" ? > > >e.g. > >-making your router a dhcp server > >-making your router a tftp server > >-back to back frame relay (no dedicated frame-relay >switch) > >-ip over aux port > >-login without a password (conf t - line vty 0 4 - >privilege level 15) > >here is where my memory fails me, can you guys think >of anymore? > > >__ >Do You Yahoo!? >Send FREE video emails in Yahoo! Mail! >http://promo.yahoo.com/videomail/ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32266&t=32213 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BSCN Exam :( [7:32267]
Hai, Just take the BSCN Exam for the second time, sadly still fail. Lots off BGP, EIGRP and OSPF. Spend 60% of the time just to figure out BGP questions. Heck BSCN is bit tough than I think it was. Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32267&t=32267 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Boot Rom [7:32268]
Hey guys, Another question for all you experts. I ran into an error message stating "Invalid chip ID 0x9155 detected in system flash" on 2502. Now, I did a little research and I found out that it relates to the bootstrap. My question is that when I boot up the router or run the sh ver command, there are 2 bootstraps. The one of the top read IOS (tm) 3000 Bootstrap Software, Version 10.2(5), RELEASE SOFTWARE (fc1). The seconnd one a few lines below -> ROM: System Bootstrap, Version 5.2(5), RELEASE SOFTWARE. What are the different between these two? How do I refer to each one? Thanks, Ed www.router4u.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32268&t=32268 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Boot Rom [7:32268]
Nevermind. I just found out that I booted from the bootROM version 10.2. Doh! I guess I just need new Boot ROM Chips. Ed Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32269&t=32268 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Copying Config to router via snmp [7:32027]
Thanks to all who replied. I downloaded the SolarWinds Eval and uploaded the config. Thanks for the help. -- Paul B. Watson Network Engineer Inchcape Shipping Services [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32271&t=32027 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bandwith [7:32264]
You cannot bridle a physical link on a software. This is your purchase if you do not want 128k for the link see your provider for 64k or 32k but if U want some bandwith by applications use QOS. T.Dion CCNP certifed -Message d'origine- De : kaushalender [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 07:24 @ : [EMAIL PROTECTED] Objet : Bandwith [7:32264] Hi all, I have 2610 router on which i want that i can restrict bandwith to 128kbs on serial port which is directly connected to my customer's router on HDSL encapsulation . How can i do that whithout using modem in between .Plz guide me . Thanx in advance kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32272&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bandwith [7:32264]
You cannot bridle a physical link on a software. This is your purchase if you do not want 128k for the link see your provider for 64k or 32k but if U want some bandwith by applications use QOS. T.Dion CCNP certifed -Message d'origine- De : kaushalender [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 07:24 @ : [EMAIL PROTECTED] Objet : Bandwith [7:32264] Hi all, I have 2610 router on which i want that i can restrict bandwith to 128kbs on serial port which is directly connected to my customer's router on HDSL encapsulation . How can i do that whithout using modem in between .Plz guide me . Thanx in advance kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32273&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: repeating a command [7:32252]
It's not desirable to use a well-know command for an alias it's better to use alias exec coprs copy run start T.dion CCNP certified -Message d'origine- De : Chris Headings [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 03:59 @ : [EMAIL PROTECTED] Objet : RE: repeating a command [7:32252] Yes... Just use the command - alias exec "copy" copy run start Where "copy" is the "shortcut" to the command. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32274&t=32252 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCNA Advice [7:32218]
Do add the ISDN , IPX routing , VLAN and the IOS commands to the list . Apart from the Cisco Press books , some of the other books which I had refered to were the books of Todd Lamelle and Interconnections by Radia Pearlman . The test is simple overall , but take care of the high passing mark. Navin Parwal [EMAIL PROTECTED] ""Kaminski, Shawn G"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > The CCNA Blueprint on the Cisco website is first place to look. You should > definitely know the following: > > -OSI Reference Model > -Subnetting > -Switching Modes (Cut-Through, Store and Forward, Fragment Free) > -RIP and IGRP > -Basic commands and configuration > -Bridging and LAN segmentation > -WAN Protocols > -Basic Access Lists > -If possible, get some hands-on experience > > This is just stuff that I can remember being covered on the exam (that was a > long time ago though). Like I said earlier, know the stuff from the CCNA > Blueprint on the Cisco website and you will be fine. Cisco Press books seem > to be the best but the Sybex book is pretty good for the CCNA. > > Shawn K. > > > -Original Message- > From: Kazan, Naim [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, January 16, 2002 4:50 PM > To: [EMAIL PROTECTED] > Subject: CCNA Advice [7:32218] > > > what area of the CCNA should I concentrate on the most? Can anyone tell me > what subjects will gear me toward passing the test. > > -Original Message- > From: Eric Waguespack [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, January 16, 2002 4:12 PM > To: [EMAIL PROTECTED] > Subject: **stupid router tricks [7:32213] > > > over the years, of working on cisco routers & > lurking in this group, I have learned a few 'cool' > tricks you can do with cisco routers, has anyone seen > a compiled list of "stupid router tricks" ? > > > e.g. > > -making your router a dhcp server > > -making your router a tftp server > > -back to back frame relay (no dedicated frame-relay > switch) > > -ip over aux port > > -login without a password (conf t - line vty 0 4 - > privilege level 15) > > here is where my memory fails me, can you guys think > of anymore? > > > __ > Do You Yahoo!? > Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32275&t=32218 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Reverse telnet [7:32206]
I just configured speed 9600, still no password prompt... Help appreciated. thanks -Original Message- From: Rob Webber [mailto:[EMAIL PROTECTED]] Sent: quinta-feira, 17 de Janeiro de 2002 1:16 To: [EMAIL PROTECTED] Subject: Re: Reverse telnet [7:32206] Try configuring "speed 9600" under the line aux 0. I do not believe you can use a straight cable, I thiink it has to be rolled. Also, are you sure port 2065 is the right port number? It sounds high, but that may be correct... Rob. ""Joaquim Lopes"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, i'm trying to configure a switch without ip remotely. > > I have the router AUX port connected to the switch Console port via > Roll-cable When i try to connect i've got : > > RouterXPTO#1.1.1.1 2065 > Trying 1.1.1.1, 2065 ... Open > > > But i can't type anything (newbie problems ) > > -- > Router configuration > interface Loopback0 > ip address 1.1.1.1 255.255.255.0 > no ip directed-broadcast > line aux 0 > no exec > no activation-character > terminal-type VT100 > transport preferred none > transport input all > > > One last thing, can i use a straigth cable to do the connectio ? > Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32276&t=32206 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bandwith [7:32264]
Use Committed Access Rate (CAR) on the Serial Interface e.g. conf t int S0 rate-limit output 128000 24000 48000 conform-action continue exceed-action drop HTH Dom Stocqueler "kaushalender" cc: Sent by: Subject: Bandwith [7:32264] [EMAIL PROTECTED] 17/01/2002 07:24 Please respond to "kaushalender" Hi all, I have 2610 router on which i want that i can restrict bandwith to 128kbs on serial port which is directly connected to my customer's router on HDSL encapsulation . How can i do that whithout using modem in between .Plz guide me . Thanx in advance kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32277&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Copying Config to router via snmp [7:32027]
In case anyone is interested and needs to copy lots of configs etc with SNMP, there is a very useful tool called Pancho which can you this. It can be found at http://pancho.lunarmedia.net/ Regards, Dom Stocqueler "Paul Watson" cc: Sent by: Subject: Re: Copying Config to router via snmp [7:32027] nobody@groups tudy.com 17/01/2002 10:35 Please respond to "Paul Watson" Thanks to all who replied. I downloaded the SolarWinds Eval and uploaded the config. Thanks for the help. -- Paul B. Watson Network Engineer Inchcape Shipping Services [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32278&t=32027 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re:1 T WIC not working with 3600series router ???? [7:32258]
Hi, WIC 1T works with 3600 series. No question about it... Probably the NM slot on which you put the WIC is faulty. Try putting it on a different slot on the same NM. If it's not working as well, replace the NM. Dvass Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32279&t=32258 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Access router using external DHCP server [7:32142]
I did get it to work by specifying the ip dhcp-server command in global. Plus adding the peer default ip address dhcp command to the dialer interfaces. I ended up not using the ip helper-address on the internal ethernet interface at all Thanks. Pieter Jan ""David Kent"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > just to qualify the last post ... > The interface address on the router does not need to be in the DHCP pool but > it does need to be an address on the same network .. > > e.g router address 172.16.1.1 /24 > DHCP pool 172.16.1.10-254 /24 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32280&t=32142 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Runts and Giants [7:32281]
Hi I have a cisco 2924 switch connected to a 6509, the port is configured as a trunk. when I use ISL encaptulation between the switches I get a lot of giant frames, and when I use dot1q I get a lot of runts. If I replace the switch with a 2950 (which only supports dot1q) I dont get any runts or giants and all works well. I am experiencing this behaviour on 30 + 2900XL switches but not on any of my 2950's Any Idea what could be happening here? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32281&t=32281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 2 T1 load balancing not working [7:32239]
This is exactly what I have done and I have used it before. But for some reason only the one link was being used. I wanted to see if you all had any ideas before calling tac. I think what I might do this morning is flash the router with a different IOS and see if that helps if not then I will call tac. I might end up leaving it as it is without cef because without it everything works like a charm. , , /( )` \ \__ / | /- _ `-/ ' (/\/ \ \ /\ / / | `\ O O ) | `-^--'`From: "Elijah Savage" >Reply-To: "Elijah Savage" >To: [EMAIL PROTECTED] >Subject: 2 T1 load balancing not working [7:32239] >Date: Wed, 16 Jan 2002 20:42:57 -0500 > >All, > >I had to setup a 2621 to do load balancing over 2 t1's with ospf. I know >ospf does this on a basic simple default setup. So after setting this up >everything seemed to be working great but one link was definately being >used about 80% more than the other. So after doing some reasearch on cco >I realized my problem I had ip route-cache turned on under the interface >on both serial interfaces. According to >http://www.cisco.com/warp/public/105/46.html it works alot better by >turning this off so I did and was getting just about 50/50 load >balancing accross both t1's. But in my quest of always trying to make >the network more efficient I saw at the bottom of that page on the link >above this statement below. > >Newer switching schemes such as Cisco Express Forwarding (CEF) >http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/ s >witch_c/xcprt2/xccefc.htm allow you to do per-packet and per-destination >load-balancing more quickly. However, it does imply that you have the >extra resources to deal with maintaining CEF entries and adjacencies. >Refer to this Application Note > for more >information on load-sharing with CEF. >So I went of the info on that URL to setup ip cef on the router and ip >load sharing. But after clearing the counters and doing a show interface >I could see all traffic going accross only one serial interface. I am >using IOS 12.1 and I had ip cef turned on globally and on both >interfaces locally as the doc stated, but only 1 link was being used. > >Any ideas why? > > > > > > > , , > /( )` > \ \__ / | > /- _ `-/ ' > (/\/ \ \ /\ > / / | `\ > O O ) | > `-^--'` (_.) _ )/Powered > `.___/`/ by >`-' / OpenBSD >For Late Breaking Tech News and OpenSource HowTO's >http://www.digitalrage.org > _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32282&t=32239 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: **stupid router tricks [7:32213]
or you could do this telnet onto a router someone is using and do a "send console 0" then type in the message box.. this router has experienced a total memeory failureplease reboot and watch the horror on your friends face >From: "Andras Bellak" >Reply-To: "Andras Bellak" >To: [EMAIL PROTECTED] >Subject: RE: **stupid router tricks [7:32213] >Date: Thu, 17 Jan 2002 02:55:48 -0500 > >And if you really feel like messing with someone - try telnetting into >the router that they are working on and doing "CLEAR LINE 0" > >-Original Message- >From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] >Sent: Wednesday, January 16, 2002 5:00 PM >To: [EMAIL PROTECTED] >Subject: Re: **stupid router tricks [7:32213] > > >I once had a student who Telnetted to every other router in the lab and >changed the banner message of the day to say something like: > >SYNTAX ERROR >ROUTER CANNOT INITIALIZE >CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY > >Another good one is to change the router's hostname to # or > or to the >name of some other router that you frequently Telnet to. > >;-) > >Priscilla > >At 04:12 PM 1/16/02, Eric Waguespack wrote: > >over the years, of working on cisco routers & > >lurking in this group, I have learned a few 'cool' > >tricks you can do with cisco routers, has anyone seen > >a compiled list of "stupid router tricks" ? > > > > > >e.g. > > > >-making your router a dhcp server > > > >-making your router a tftp server > > > >-back to back frame relay (no dedicated frame-relay > >switch) > > > >-ip over aux port > > > >-login without a password (conf t - line vty 0 4 - > >privilege level 15) > > > >here is where my memory fails me, can you guys think > >of anymore? > > > > > >__ > >Do You Yahoo!? > >Send FREE video emails in Yahoo! Mail! > >http://promo.yahoo.com/videomail/ > > >Priscilla Oppenheimer >http://www.priscilla.com _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32283&t=32213 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: First Impressions - CCIE Practical Studies [7:32237]
HI, I received my copy last week, here in the UK. I was given a good review before I bought the book (Thanks Brad Ellis). I am happy with the content of the book and the LAB's at the end are well worth the price of the book (and more). I have only found spelling mistakes (like form instead of from), but I have not completed it yet. But, saying that, I am glad I was not asked to author a book that would have such a wide audience and a list of reviewers (all those that use groupstudy). Its a good book and I am waiting for Practical Studies Vol 2. Impressed Rob > -Original Message- > From: Kevin Wigle [SMTP:[EMAIL PROTECTED]] > Sent: 17 January 2002 02:32 > To: [EMAIL PROTECTED] > Subject: Re: First Impressions - CCIE Practical Studies [7:32237] > > hmmm.. don't know why you said that "I had the same shipping > problem..." > > I didn't read that in Chuck's post. > > However, on the same topic, I just got my copy yesterday. > > I bought mine from Pearson Education for $48.75 with $7.00 shipping > ordinary > mail to Canada. > > It took 2 weeks which was fine with me. > > Like Chuck I am immediately impressed by the authors/reviewers. All told > - > 9 - CCIEs. I am just getting through chapter one but I have perused the > appendices and Chapter 18 (the timed labs). I'm excited with what "looks" > like is there. Can't wait to devote more time to it. > > Kevin Wigle > > > - Original Message - > From: "Steven A. Ridder" > To: > Sent: Wednesday, 16 January, 2002 20:43 > Subject: Re: First Impressions - CCIE Practical Studies [7:32237] > > > > I got my CCIE Practical Studies book via half.com yeaterday and I had > the > > same shipping problem. I saved about $25 on the price of the book, but > the > > delivery took over 3 1/2 weeks! I don't think there was even a stamp or > > postmark on the media mail package, so I have no idea how it arrived > > I'd just as soon pay Amazon's price and get normal shipping (plus my > company > > re-imburses me for all books I buy anyways). > > > > The book looks pretty good, but some people have told me that the book > is > > still simple compared to the lab iteslf. But all in all, it does give > you > a > > blueprint of topics to study, then you can branch off in each subject > for > > more in-depth studies in other books, etc. > > > > ""Chuck Larrieu"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Just got my copy. > > > > > > Reading the "About the Authors" section alone is impressive. All those > > > associated with the book are CCIE's. I look forward to discovering if > > there > > > are any errors in the book. One would hope not, given the credentials > of > > the > > > writers and reviewers, one of whom was the Halifax Lab Proctor for > several > > > years. > > > > > > So far I have browsed all of the first chapter "The Key Components for > > > Modeling an Internetwork" > > > > > > This chapter covers in good detail all those basic questions - the > config > > > register, configuring a router as a frame switch, password recovery, > show > > > and debug ( called "the big show" and "the big d" respectively, > throughout > > > the book. ) building a terminal server, and much much more. This alone > > tells > > > me that this book might be a good investment for those just starting > out, > > as > > > well as those prepping for the CCIE Lab. Sure, all of this information > is > > > available elsewhere, but with this book, it is in one place, easily > > located, > > > and clearly explained. > > > > > > There is even a section about configuring networking on windoze > computers. > > > Considering the number of raw beginners who are coming into the > > > certification process, this is helpful. > > > > > > I'll have more comments after I have had a chance to look at the > "good" > > > stuff. > > > > > > Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32284&t=32237 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Runts and Giants [7:32281]
-Message d'origine- De : Pieter Jordaan [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 12:03 @ : [EMAIL PROTECTED] Objet : Runts and Giants [7:32281] Hi I have a cisco 2924 switch connected to a 6509, the port is configured as a trunk. when I use ISL encaptulation between the switches I get a lot of giant frames, and when I use dot1q I get a lot of runts. If I replace the switch with a 2950 (which only supports dot1q) I dont get any runts or giants and all works well. I am experiencing this behaviour on 30 + 2900XL switches but not on any of my 2950's Any Idea what could be happening here? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32285&t=32281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
buffer and monitor logging problems [7:32286]
Hi, Has anyone ever encountered problems related to logging? I mean a router with "level debugging" set on all destinations stops logging to buffer and monitor, and the "solution" is to change console logging level to "warnings" or less (even no logging console)? I've also noticed that "no logging synchronous" under line con 0 does the trick- logging resumes to buffer and monitor. Thanks in advance for any ideas Theo Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32286&t=32286 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: buffer and monitor logging problems [7:32286]
This is a known bug. The suggested fix is not to use 'logging synchronous'. I had this problem with a 3660 for months using three different IOS versions! I ran across the bug report so I removed logging synch and it started working. HTH, John >>> "Theo" 1/17/02 6:46:57 AM >>> Hi, Has anyone ever encountered problems related to logging? I mean a router with "level debugging" set on all destinations stops logging to buffer and monitor, and the "solution" is to change console logging level to "warnings" or less (even no logging console)? I've also noticed that "no logging synchronous" under line con 0 does the trick- logging resumes to buffer and monitor. Thanks in advance for any ideas Theo Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32287&t=32286 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
6509 cards hot swapable? [7:32288]
Are 6509 cards hot swapable or does the box need powered down. Cheers George = George Dodds CCNA, MCP __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32288&t=32288 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: **stupid router tricks [7:32213]
and iptables! :) >>> "Erick B." 01/17/02 01:42AM >>> How about running linux on it? :D sl8z...e --- Chuck Larrieu wrote: > do things like hotwiring your serial ports to > connect analogue modems count? > > Is IOS firewall a "stupid router trick" ( in > addition to being poor design > and asking for trouble ) ? > > How about ODR? > > "Eric Waguespack"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > over the years, of working on cisco routers & > > lurking in this group, I have learned a few 'cool' > > tricks you can do with cisco routers, has anyone > seen > > a compiled list of "stupid router tricks" ? > > > > > > e.g. > > > > -making your router a dhcp server > > > > -making your router a tftp server > > > > -back to back frame relay (no dedicated > frame-relay > > switch) > > > > -ip over aux port > > > > -login without a password (conf t - line vty 0 4 - > > privilege level 15) > > > > here is where my memory fails me, can you guys > think > > of anymore? __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32289&t=32213 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Please READ THIS ! ! ! [7:31974]
I would say Syngress CCNP book would be best to read all the way though. If you want to just look up what you don't know, A&B. A friend had router Exam Cram, I read almost the entire book in 2 hours last night. The questions felt like I was in first grade. This book is way too simple, do not buy it unless you are very clueless. For Example, Not only are the questions so easy, but the other wrong answers are ridiculous. The material talks about such simple subjects as having redundancy in your core routers, and a lot of other information that is common sense. My suggestion is to read all you can from websites, or from the syngress book. Yea your going to find mistakes, but use 3 resources. 2 of them will be right. I don't think you really need boson if you read the material. Just use the 30,60 or 90 toward the test. The best part of boson is it points you to the right place on Cisco's site. You can just go there yourself without sending them some money. If you have any study guides with questions, a good ideas is to actually learn why the answer is right, and not just memorize. Well its obvious what to study, OPSF, BGP, EIGRP, whatever else is in Cisco Outline and a good overall general knowledge on routing. ""Cisco Fire"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Haye Friends, > > Just wanted your help in taking a right decision. > I m planning to take the Routing exam (Exam no. 503) > > Which is the best book for study ? WHICH BOOK SHOULD I BUY ? > > a. BSCN by Catherine Paquet / Diane Teare > > b. EXam Certification Guide by Clare Gough > > c. Study guide by Todd Lammle, Sean & Kevin > > > Any recommendations from your side will be of great help to me. > > > Thank you friends Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32290&t=31974 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Off Topic - Half.com book purchase [7:32234]
I've used Half quite a few times and have been happy overall with it. I dont mind waiting for a book where I paid 10.00 and the retail is 60.00.. when you can find it. I normally use www.bestwebbuys.com to comp price between 10 or more vendors for new and used prices. It's a great time saver. MikeS Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32291&t=32234 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 6509 cards hot swapable? [7:32288]
There may be some exceptions, but AFAIK, they're hot swappable. I've changed FastEthernet line cards and sups while up and running. Don't know about the Fabric expansion card tho. Mike W. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32292&t=32288 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Runts and Giants [7:32281]
sorry for rewritting but the last mail didn't work see the link: http://www.cisco.com/warp/public/473/43.html#fifth -Message d'origine- De : Dion, Thierry Envoyi : jeudi 17 janvier 2002 13:42 @ : [EMAIL PROTECTED] Objet : RE: Runts and Giants [7:32281] -Message d'origine- De : Pieter Jordaan [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 12:03 @ : [EMAIL PROTECTED] Objet : Runts and Giants [7:32281] Hi I have a cisco 2924 switch connected to a 6509, the port is configured as a trunk. when I use ISL encaptulation between the switches I get a lot of giant frames, and when I use dot1q I get a lot of runts. If I replace the switch with a 2950 (which only supports dot1q) I dont get any runts or giants and all works well. I am experiencing this behaviour on 30 + 2900XL switches but not on any of my 2950's Any Idea what could be happening here? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32293&t=32281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 6509 cards hot swapable? [7:32288]
You can hot swap them. Even mgmt ones. -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 6509 cards hot swapable? [7:32288]
Most of them are... I think that the NAM might not be - Original Message - From: "George Dodds" To: Sent: Thursday, January 17, 2002 10:07 AM Subject: 6509 cards hot swapable? [7:32288] > Are 6509 cards hot swapable or does the box need > powered down. > > Cheers > > George > > = > George Dodds > > CCNA, MCP > > __ > Do You Yahoo!? > Everything you'll ever need on one web page > from News and Sport to Email and Music Charts > http://uk.my.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32297&t=32288 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 6509 cards hot swapable? [7:32288]
Yes, even the Sup if you have two of them :) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of George Dodds Sent: Thursday, January 17, 2002 9:08 AM To: [EMAIL PROTECTED] Subject: 6509 cards hot swapable? [7:32288] Are 6509 cards hot swapable or does the box need powered down. Cheers George = George Dodds CCNA, MCP __ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32296&t=32288 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: **stupid router tricks [7:32213]
"test crash" can make a router do funny things Dave Priscilla Oppenheimer wrote: > > I once had a student who Telnetted to every other router in the lab and > changed the banner message of the day to say something like: > > SYNTAX ERROR > ROUTER CANNOT INITIALIZE > CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY > > Another good one is to change the router's hostname to # or > or to the > name of some other router that you frequently Telnet to. > > ;-) > > Priscilla > > At 04:12 PM 1/16/02, Eric Waguespack wrote: > >over the years, of working on cisco routers & > >lurking in this group, I have learned a few 'cool' > >tricks you can do with cisco routers, has anyone seen > >a compiled list of "stupid router tricks" ? > > > > > >e.g. > > > >-making your router a dhcp server > > > >-making your router a tftp server > > > >-back to back frame relay (no dedicated frame-relay > >switch) > > > >-ip over aux port > > > >-login without a password (conf t - line vty 0 4 - > >privilege level 15) > > > >here is where my memory fails me, can you guys think > >of anymore? > > > > > >__ > >Do You Yahoo!? > >Send FREE video emails in Yahoo! Mail! > >http://promo.yahoo.com/videomail/ > > > Priscilla Oppenheimer > http://www.priscilla.com -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32298&t=32213 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bandwith [7:32264]
For Ios 11.3 you can restrict outbound traffic rates, using the traffic shape command, but I don't know how to do incoming traffic. interface serial 0/0 traffic-shape rate 131072 In Ios 12.0, there is a handy feature that will do what you want...you can rate-limit it. interface Serial 0/0 rate-limit input 131072 0 0 conform-action transmit exceed-action drop rate-limit output 131072 0 0 conform-action transmit exceed-action drop And, you can set burst sizes on these to allow your customer to go above the maximum rate for short periods of time. If you wanted to give them 128k, but burstable to 256k, then it would be interface serial 0/0 rate-limit input 131072 131072 131072 conform-action transmit exceed-action drop rate-limit output 131072 131072 131072 conform-action transmit exceed-action drop (The first 131072 is the 128k committed. The second and third 131072 is the additional 128k burstable. the format of the command is rate-limit (input/output) (cir) (normal-cbr) (max-cbr) conform-action (...) exceed action (...)) To verify the configuration Show interface serial 0/0 rate-limit... Let me know if you need more help. -Ejay p.s. Expiring .net company Cisco Consultant for sale or rent (me). Contact off-list for $ -Original Message- From: kaushalender [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 2:24 AM To: [EMAIL PROTECTED] Subject: Bandwith [7:32264] Hi all, I have 2610 router on which i want that i can restrict bandwith to 128kbs on serial port which is directly connected to my customer's router on HDSL encapsulation . How can i do that whithout using modem in between .Plz guide me . Thanx in advance kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32299&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FRF.12 finally solved [7:32301]
If anyone remembers, I had a question about 3 months ago asking if anyone had problem with FRF.12, and some did. I had an opportunity yesterday to ask some people at Cisco what the problem might be, and they had the same problem. They told me how to do it. Here is a recap of the problem: If you have a CIR of 64k and you confg the map-class for cir to 64000 and mincir to 64000, then add frf.12 fragmentation, it won't work because the queue chops up the packet into smaller packets and adds headers to all the smaller packets as well. Each header is another 3.2k. So before if you had one packet that was 1500 bytes and added a header, it became 1503 bytes. But if you chop up the 1500 byte packet to 80 byte packets, you now have 188 packets that still add up to 1500 bytes, but then the queue adds headers to all the small packets, in effect, adding another 600 bytes of data. So that 1 1500 byte packet just became 2100 bytes. Then the queue hands all the traffic to the physical interface for transmission, and some of the traffic will be dropped because you sent more than the CIR of the circuit. So you have to set traffic shaping lower than the actual CIR to allow for the frame-relay headers to not ruin your calculations. They said about 10% lower will work. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32301&t=32301 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 6509 cards hot swapable? [7:32288]
Hot swap at will except for the sup card if you have only one;) Dave George Dodds wrote: > > Are 6509 cards hot swapable or does the box need > powered down. > > Cheers > > George > > = > George Dodds > > CCNA, MCP > > __ > Do You Yahoo!? > Everything you'll ever need on one web page > from News and Sport to Email and Music Charts > http://uk.my.yahoo.com -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32302&t=32288 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bandwith [7:32264]
The actual formula to allow bursting is = rate(BITS)/8*1.5 to get the burst in BYTES. the double that to get the second variable, also in BYTES -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2 T1 load balancing not working [7:32239]
I think your probably doing the right thing, the past week I have run into 2 route-cache bugs, fast switching, upgraded and moved along... Dave Elijah Savage wrote: > > This is exactly what I have done and I have used it before. But for some > reason only the one link was being used. I wanted to see if you all had > any ideas before calling tac. I think what I might do this morning is > flash the router with a different IOS and see if that helps if not then > I will call tac. I might end up leaving it as it is without cef because > without it everything works like a charm. > > , , > /( )` > \ \__ / | > /- _ `-/ ' > (/\/ \ \ /\ > / / | `\ > O O ) | > `-^--'`From: "Elijah Savage" > >Reply-To: "Elijah Savage" > >To: [EMAIL PROTECTED] > >Subject: 2 T1 load balancing not working [7:32239] > >Date: Wed, 16 Jan 2002 20:42:57 -0500 > > > >All, > > > >I had to setup a 2621 to do load balancing over 2 t1's with ospf. I > know > >ospf does this on a basic simple default setup. So after setting this > up > >everything seemed to be working great but one link was definately being > >used about 80% more than the other. So after doing some reasearch on > cco > >I realized my problem I had ip route-cache turned on under the > interface > >on both serial interfaces. According to > >http://www.cisco.com/warp/public/105/46.html it works alot better by > >turning this off so I did and was getting just about 50/50 load > >balancing accross both t1's. But in my quest of always trying to make > >the network more efficient I saw at the bottom of that page on the link > >above this statement below. > > > >Newer switching schemes such as Cisco Express Forwarding (CEF) > >http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/ > s > >witch_c/xcprt2/xccefc.htm allow you to do per-packet and > per-destination > >load-balancing more quickly. However, it does imply that you have the > >extra resources to deal with maintaining CEF entries and adjacencies. > >Refer to this Application Note > > for more > >information on load-sharing with CEF. > >So I went of the info on that URL to setup ip cef on the router and ip > >load sharing. But after clearing the counters and doing a show > interface > >I could see all traffic going accross only one serial interface. I am > >using IOS 12.1 and I had ip cef turned on globally and on both > >interfaces locally as the doc stated, but only 1 link was being used. > > > >Any ideas why? > > > > > > > > > > > > > > , , > > /( )` > > \ \__ / | > > /- _ `-/ ' > > (/\/ \ \ /\ > > / / | `\ > > O O ) | > > `-^--'` (_.) _ )/Powered > > `.___/`/ by > >`-' / OpenBSD > >For Late Breaking Tech News and OpenSource HowTO's > >http://www.digitalrage.org > > > _ > Get your FREE download of MSN Explorer at > http://explorer.msn.com/intl.asp. -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32300&t=32239 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCIE Lab Waiting Period [7:32232]
According to the online scheduler, the following dates/times are available in San Jose. 17-Jan-2002 19-Jan-2002 20-Jan-2002 21-Jan-2002 22-Jan-2002 -Original Message- From: Ed Chuchaisri [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2002 7:05 PM To: [EMAIL PROTECTED] Subject: CCIE Lab Waiting Period [7:32232] Guys, I wonder when is the earliest R/S lab available in San Jose if I passed the written today? I heard that it still takes at least 6 months even though Cisco has changed the lab to a 1-day format. And how do you compared the written exam to other Cisco Exam like CID 3.0 (I think this is the most challenging one out there), Routing 2.0, and switching 2.0. Is it true that written exam for R/S is the combination of Routing 2.0 and switching 2.0 together. How many questions by the way? Thanks, Ed www.router4u.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32304&t=32232 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
NAT Question [7:32305]
I was wondering if anyone knew whether or not a rotary nat would forward established communications to the same server or whether it would round robin all packets being translated. How about Checkpoint? Will that keep established communications going to the same server? Anybody? Thanks! Frank -Original Message- From: Dion, Thierry [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 10:35 AM To: [EMAIL PROTECTED] Subject: RE: Runts and Giants [7:32281] sorry for rewritting but the last mail didn't work see the link: http://www.cisco.com/warp/public/473/43.html#fifth -Message d'origine- De : Dion, Thierry Envoyi : jeudi 17 janvier 2002 13:42 @ : [EMAIL PROTECTED] Objet : RE: Runts and Giants [7:32281] -Message d'origine- De : Pieter Jordaan [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 12:03 @ : [EMAIL PROTECTED] Objet : Runts and Giants [7:32281] Hi I have a cisco 2924 switch connected to a 6509, the port is configured as a trunk. when I use ISL encaptulation between the switches I get a lot of giant frames, and when I use dot1q I get a lot of runts. If I replace the switch with a 2950 (which only supports dot1q) I dont get any runts or giants and all works well. I am experiencing this behaviour on 30 + 2900XL switches but not on any of my 2950's Any Idea what could be happening here? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32305&t=32305 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NAT Question [7:32305]
round robin -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Frame-Relay problem - 3Com to Cisco (long) [7:32307]
We're switching our routers from 3Com to Cisco and we're having trouble at one of our sites. We've got a hub-and-spoke configuration from our central site to 4 other sites. 3 of the sites come up when we switch the hardware to Cisco (simply moving the CSU from the 3Com router to the Cisco router), the 4th does not. I'm including the Central Site config and 2 of the remotes (Site 1 comes up, Site 2 does not). We've changed out the router (including the serial ports), csu, serial cable, rj45's, everything. It's not a hardware problem. We changed the CSU on the central site, just to see if it would help. No go. Please let me know if you see something weird. I've replaced the DLCI #'s with letters, but they match up (i.e. if it's ABC in site 1, it matches to ABC in central site). I didn't include configs for sites 3 & 4, but they're identical with the exception of the DLCI's and IP's. (and they work as well). Something I had thought about... this site is in Canada and we're in the US as well as the other 3 sites. Would there be any caveats regarding international connections? Again, everything works when connected to the 3Com equipment, it's only when we connect up the Cisco's that site 1 fails. Thanks for any input. Bob -- Site 1 (This site works fine) Current configuration: ! version 12.0 ip subnet-zero interface Serial0/0 ip address x.x.53.26 255.255.255.252 no ip directed-broadcast encapsulation frame-relay ip ospf network point-to-point ip ospf dead-interval 60 no ip mroute-cache no fair-queue frame-relay interface-dlci ABC -- Site 2 (This site does not come up) Current configuration: ! version 12.0 ip subnet-zero interface Serial0/0 ip address x.x.53.2 255.255.255.252 no ip directed-broadcast encapsulation frame-relay ip ospf network point-to-point ip ospf dead-interval 60 no ip mroute-cache no fair-queue frame-relay interface-dlci XYZ -- Central Site Current configuration: version 12.0 ip subnet-zero interface Serial5/1 no ip address no ip directed-broadcast encapsulation frame-relay ip ospf dead-interval 60 ! interface Serial5/1.1 point-to-point ip address x.x.53.17 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 ipx network 92 frame-relay interface-dlci GHI ! interface Serial5/1.2 point-to-point ip address x.x.53.21 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 ipx network 54B frame-relay interface-dlci DEF ! interface Serial5/1.3 point-to-point bandwidth 64000 ip address x.x.53.1 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 frame-relay interface-dlci XYZ ! interface Serial5/1.4 point-to-point bandwidth 64000 ip address x.x.53.25 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 frame-relay interface-dlci ABC -- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32307&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNA Advice [7:32218]
I would say that there are two areas to concentrate most on the CCNA test. 1) OSI Model- need to know this backwards and forwards. What are the layers, what protocols work at each layer, how packets are formed, etc. 2) Subnetting- know this not only for the test but because if you are in the field you will get asked a subnetting question and you better know the answer. There were a lot of subnetting questions on the CCNA exam. In addition, there were a few access-list, bridging/switching, configuration questions. Know your ISDN, they still test that as well. Out of 60 questions I would say that 20 will have to do with OSI and subnetting. Author: Kazan, Naim () Date: 01-16-02 16:49 what area of the CCNA should I concentrate on the most? Can anyone tell me what subjects will gear me toward passing the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32308&t=32218 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
VPN3002 Network Extension Mode [7:32309]
does anyone experimented the Network Extension Mode beetween VPN3002 and VPN 3000 concentrator ? I configure it based on the cisco document and the ipsec tunnel works very weel. The problem is : I dont have any paket sent from the concentrator to the 3002. It is impossible to ping from one to another. Any clue ? Jean-Luc Gugler Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32309&t=32309 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bandwith [7:32264]
traffic shapping is use with FR if U haven't FR, TR will not work. T.dion CCNP certified -Message d'origine- De : Hire, Ejay [mailto:[EMAIL PROTECTED]] Envoyi : jeudi 17 janvier 2002 16:04 @ : [EMAIL PROTECTED] Objet : RE: Bandwith [7:32264] For Ios 11.3 you can restrict outbound traffic rates, using the traffic shape command, but I don't know how to do incoming traffic. interface serial 0/0 traffic-shape rate 131072 In Ios 12.0, there is a handy feature that will do what you want...you can rate-limit it. interface Serial 0/0 rate-limit input 131072 0 0 conform-action transmit exceed-action drop rate-limit output 131072 0 0 conform-action transmit exceed-action drop And, you can set burst sizes on these to allow your customer to go above the maximum rate for short periods of time. If you wanted to give them 128k, but burstable to 256k, then it would be interface serial 0/0 rate-limit input 131072 131072 131072 conform-action transmit exceed-action drop rate-limit output 131072 131072 131072 conform-action transmit exceed-action drop (The first 131072 is the 128k committed. The second and third 131072 is the additional 128k burstable. the format of the command is rate-limit (input/output) (cir) (normal-cbr) (max-cbr) conform-action (...) exceed action (...)) To verify the configuration Show interface serial 0/0 rate-limit... Let me know if you need more help. -Ejay p.s. Expiring .net company Cisco Consultant for sale or rent (me). Contact off-list for $ -Original Message- From: kaushalender [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 2:24 AM To: [EMAIL PROTECTED] Subject: Bandwith [7:32264] Hi all, I have 2610 router on which i want that i can restrict bandwith to 128kbs on serial port which is directly connected to my customer's router on HDSL encapsulation . How can i do that whithout using modem in between .Plz guide me . Thanx in advance kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32310&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Quick RIP questions [7:32311]
Please correct me if I am wrong on those RIP questions: (1) The hold down timer starts counting after 180 seconds (if no update for a route has been received) (2) The flush timer starts counting AT THE SAME TIME as the holdown timer. (3) Which means that a route will be FLUSHED from the routing table 60 SECONDS after the holdown timer has expired. Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32311&t=32311 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Bandwith [7:32264]
you can tr on any interface now. ts is fr. -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
** MEAN router tricks, (was RE: **stupid router tricks) [7:32314]
I guess some of us are more devious than others, in honor of those members, lets hear your worst trick that you played on some poor ccna candidate, or was played on you by a student, etc... (e.g.) -exec-timeout 1 -banner motd (thanks Priscilla =) SYNTAX ERROR ROUTER CANNOT INITIALIZE CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY -hostname to # or > or to the name of some other router that they frequently Telnet to. -"test crash" __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32314&t=32314 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
What do you mean, specifically? Does the line protocol never come up? Does the line protocol come up yet OSPF adjacencies do not form? Does the physical interface even come up? Thanks, John >>> "Bob Timmons" 1/17/02 9:22:54 AM >>> We're switching our routers from 3Com to Cisco and we're having trouble at one of our sites. We've got a hub-and-spoke configuration from our central site to 4 other sites. 3 of the sites come up when we switch the hardware to Cisco (simply moving the CSU from the 3Com router to the Cisco router), the 4th does not. I'm including the Central Site config and 2 of the remotes (Site 1 comes up, Site 2 does not). We've changed out the router (including the serial ports), csu, serial cable, rj45's, everything. It's not a hardware problem. We changed the CSU on the central site, just to see if it would help. No go. Please let me know if you see something weird. I've replaced the DLCI #'s with letters, but they match up (i.e. if it's ABC in site 1, it matches to ABC in central site). I didn't include configs for sites 3 & 4, but they're identical with the exception of the DLCI's and IP's. (and they work as well). Something I had thought about... this site is in Canada and we're in the US as well as the other 3 sites. Would there be any caveats regarding international connections? Again, everything works when connected to the 3Com equipment, it's only when we connect up the Cisco's that site 1 fails. Thanks for any input. Bob -- Site 1 (This site works fine) Current configuration: ! version 12.0 ip subnet-zero interface Serial0/0 ip address x.x.53.26 255.255.255.252 no ip directed-broadcast encapsulation frame-relay ip ospf network point-to-point ip ospf dead-interval 60 no ip mroute-cache no fair-queue frame-relay interface-dlci ABC -- Site 2 (This site does not come up) Current configuration: ! version 12.0 ip subnet-zero interface Serial0/0 ip address x.x.53.2 255.255.255.252 no ip directed-broadcast encapsulation frame-relay ip ospf network point-to-point ip ospf dead-interval 60 no ip mroute-cache no fair-queue frame-relay interface-dlci XYZ -- Central Site Current configuration: version 12.0 ip subnet-zero interface Serial5/1 no ip address no ip directed-broadcast encapsulation frame-relay ip ospf dead-interval 60 ! interface Serial5/1.1 point-to-point ip address x.x.53.17 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 ipx network 92 frame-relay interface-dlci GHI ! interface Serial5/1.2 point-to-point ip address x.x.53.21 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 ipx network 54B frame-relay interface-dlci DEF ! interface Serial5/1.3 point-to-point bandwidth 64000 ip address x.x.53.1 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 frame-relay interface-dlci XYZ ! interface Serial5/1.4 point-to-point bandwidth 64000 ip address x.x.53.25 255.255.255.252 no ip directed-broadcast ip ospf network point-to-point ip ospf dead-interval 60 frame-relay interface-dlci ABC -- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32313&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question on RSM PCMCIA, and Squeeze [7:32315]
Hey guys, I have a question that maybe one of you can answer really quick. Im in the processes of upgrading an RSM with a PCMCIA card in Slot0. Currently there are 2 IOS images that are on it. One of them is the current production and the other one is a older IOS. I did a delete slot0: oldverofIOS.bin from the prompt and then it marked it for deletion. Now when I do a squeeze will it erase it from the card so that I can put a new version of IOS on it? Here is some info. CR-RSM#show flash -#- ED --type-- --crc--- -seek-- nlen -length- -date/time-- name 1 .D unknown E04A4755 656214 28 6513044 Jan 01 2000 00:08:13 c5rsm-isv-mz.120-3c.W5.8.bin 2 .. unknown 94AAC7D2 DFA514 28 8012416 Jul 22 2001 22:39:44 c5rsm-jsv-mz.120-3c.W5.8.bin 3 .. config A5D1B387 DFB6D0 14 4410 Jul 22 2001 23:10:08 startup-config 1853744 bytes available (14530256 bytes used) Richard Tufaro - MCSE - GSEC- CCNA Network Engineer - Anda Inc. [EMAIL PROTECTED] MSN IM - [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32315&t=32315 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: First Impressions - CCIE Practical Studies [7:32237]
I have a couple of "nit-picky" complaints about the book (as I do about almost every book I read). There are some typo's as a previous poster indicated. One of my biggest pet peeves is the use of the term "continuous" when the author (probably) means "contiguous" - one sees this most often when discussing OSPF. Note, this book isn't unique in this mis-use of the term; there are many CCO documents that also make this "error." I'm assuming that this is the product of a spell-checker that didn't know the term contiguous, suggested continuous and someone hit "replace all." Before the flame-war starts, I know that these two words have *similar* meanings but in this case I - my personal opinion - think that contiguous is 'more right' - besides, it's the term used in the RFC. Since I'm picking nits; the author indicates that the OSPF process ID on a router should be thought of "as an Autonomous System ID. This number should be the same on all routers within the autonomous system." Per CCO, this is a locally significant setting used only to distinguish between multiple OSPF routing process on a particular router. If we were to apply the RFC2119 definition of "should" to this statement one might think that certain problems may occur if this practice wasn't followed. I don't believe this to be the case but I'm sure someone on the list will correct me if I'm wrong. There's nothing wrong with using the same process ID on all of your OSPF routers; I would guess that networks are configured that way more often than not; but isn't a requirement. Given that the lab exam is all about splitting hairs to the most minute detail and knowing the various protocols in depth, it probably should have been noted (as in other texts) that two adjacent routers can have different process IDs configured. There are some outright mistakes in the book - I just checked the CiscoPress site for an errata and didn't see one yet. Here one that I recall off the top of my head: EIGRP - (p.691) at the bottom of the page, the 'distance' command. - this is almost a direct copy/paste from the IGRP chapter; does not include the required information to change the admin distance of the EIGRP routing process (which requires both an internal and external distance); it only lists the syntax to change the distance of a specific neighbor's updates. I find it funny that the EIGRP chapter says "For a specific example and more practice with the 'distance' command, see" the IGRP chapter. When you look at the IGRP chapter, it uses the same sentence to point you to the RIP chapter. Anyone who has walked into an EIGRP network with multiple, unfiltered redistribution points into a RIP domain will know first-hand the importance of knowing how a router handles internal vs. external EIGRP routes. Additionally, I thought the section on PPP authentication could have used some more work on the one-way authentication options (both PAP and CHAP). Bottom-line, this seems to be a well written book; it gives you some good examples and labs to work on your own, etc. It won't replace any of the other "must haves" on the bookshelf (e.g. Doyle, Caslow, Thomas, etc.) and unfortunately, (as it seems with all of the books published these days) you have to play 'reporter' and verify the information in the book with some other source (CCO, RFCs, other texts) - this is a topic I could rant on for quite some time (considering the $thousands - literally - I've spent on training materials which contain errors). -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2002 7:18 PM To: [EMAIL PROTECTED] Subject: OT: First Impressions - CCIE Practical Studies [7:32237] Just got my copy. Reading the "About the Authors" section alone is impressive. All those associated with the book are CCIE's. I look forward to discovering if there are any errors in the book. One would hope not, given the credentials of the writers and reviewers, one of whom was the Halifax Lab Proctor for several years. So far I have browsed all of the first chapter "The Key Components for Modeling an Internetwork" This chapter covers in good detail all those basic questions - the config register, configuring a router as a frame switch, password recovery, show and debug ( called "the big show" and "the big d" respectively, throughout the book. ) building a terminal server, and much much more. This alone tells me that this book might be a good investment for those just starting out, as well as those prepping for the CCIE Lab. Sure, all of this information is available elsewhere, but with this book, it is in one place, easily located, and clearly explained. There is even a section about configuring networking on windoze computers. Considering the number of raw beginners who are coming into the certification process, this is helpful. I'll have more comments after I have had a chance to look at the "good" stuff. Chuck Message Posted at: http://www
RSM Squeeze [7:32317]
Found the answer..thanks http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/cnfg_nts/rsm/4058_01.htm#xtocid157290 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32317&t=32317 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ** MEAN router tricks, (was RE: **stupid router tricks) [7:32318]
aliasescan be pretty nasty if you think about it -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 11:15 AM To: [EMAIL PROTECTED] Subject: ** MEAN router tricks, (was RE: **stupid router tricks) [7:32314] I guess some of us are more devious than others, in honor of those members, lets hear your worst trick that you played on some poor ccna candidate, or was played on you by a student, etc... (e.g.) -exec-timeout 1 -banner motd (thanks Priscilla =) SYNTAX ERROR ROUTER CANNOT INITIALIZE CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY -hostname to # or > or to the name of some other router that they frequently Telnet to. -"test crash" __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32318&t=32318 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
On S5/1 I get UP/UP. On S5/1.4, I get UP/UP on our side and UP/UP on the remote side. On S5/1.3 I get Down/Down on our side and Up/Down on their side. > What do you mean, specifically? Does the line protocol never come up? > Does the line protocol come up yet OSPF adjacencies do not form? Does > the physical interface even come up? > > Thanks, > John > > >>> "Bob Timmons" 1/17/02 9:22:54 AM >>> > We're switching our routers from 3Com to Cisco and we're having > trouble at one of our sites. We've got a hub-and-spoke configuration > from our central site to 4 other sites. 3 of the sites come up when > we switch the hardware to Cisco (simply moving the CSU from the 3Com > router to the Cisco router), the 4th does not. I'm including the > Central Site config and 2 of the remotes (Site 1 comes up, Site 2 does > not). > > We've changed out the router (including the serial ports), csu, serial > cable, rj45's, everything. It's not a hardware problem. We changed > the CSU on the central site, just to see if it would help. No go. > > Please let me know if you see something weird. > > I've replaced the DLCI #'s with letters, but they match up (i.e. if > it's ABC in site 1, it matches to ABC in central site). I didn't > include configs for sites 3 & 4, but they're identical with the > exception of the DLCI's and IP's. (and they work as well). > > Something I had thought about... this site is in Canada and we're in > the US as well as the other 3 sites. Would there be any caveats > regarding international connections? Again, everything works when > connected to the 3Com equipment, it's only when we connect up the > Cisco's that site 1 fails. > > Thanks for any input. > > Bob > > -- > Site 1 (This site works fine) > > Current configuration: > ! > version 12.0 > > ip subnet-zero > > interface Serial0/0 > ip address x.x.53.26 255.255.255.252 > no ip directed-broadcast > encapsulation frame-relay > ip ospf network point-to-point > ip ospf dead-interval 60 > no ip mroute-cache > no fair-queue > frame-relay interface-dlci ABC > -- > Site 2 (This site does not come up) > > Current configuration: > ! > version 12.0 > > ip subnet-zero > > interface Serial0/0 > ip address x.x.53.2 255.255.255.252 > no ip directed-broadcast > encapsulation frame-relay > ip ospf network point-to-point > ip ospf dead-interval 60 > no ip mroute-cache > no fair-queue > frame-relay interface-dlci XYZ > -- > Central Site > > Current configuration: > version 12.0 > > ip subnet-zero > > interface Serial5/1 > no ip address > no ip directed-broadcast > encapsulation frame-relay > ip ospf dead-interval 60 > ! > interface Serial5/1.1 point-to-point > ip address x.x.53.17 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > ipx network 92 > frame-relay interface-dlci GHI > ! > interface Serial5/1.2 point-to-point > ip address x.x.53.21 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > ipx network 54B > frame-relay interface-dlci DEF > ! > interface Serial5/1.3 point-to-point > bandwidth 64000 > ip address x.x.53.1 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > frame-relay interface-dlci XYZ > ! > interface Serial5/1.4 point-to-point > bandwidth 64000 > ip address x.x.53.25 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > frame-relay interface-dlci ABC > -- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32319&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Configs for book WAS: Re: First Impressions - CCIE [7:32294]
FYI - Im working with Karl Solie to see if I can get the configs for the labs and have them posted along with the review. I'll keep you guys updated. thanks, -Brad Ellis CCIE#5796 (R&S / Security) Network Learning Inc [EMAIL PROTECTED] used Cisco gear: www.optsys.net CCIE Labs, racks, and classes: http://www.ccbootcamp.com/quicklinks.html ""Thompson, Robert D"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > HI, > > I received my copy last week, here in the UK. I was given a good review > before I bought the book (Thanks Brad Ellis). I am happy with the content of > the book and the LAB's at the end are well worth the price of the book (and > more). I have only found spelling mistakes (like form instead of from), but > I have not completed it yet. But, saying that, I am glad I was not asked to > author a book that would have such a wide audience and a list of reviewers > (all those that use groupstudy). Its a good book and I am waiting for > Practical Studies Vol 2. > > Impressed > > Rob > > > -Original Message- > > From: Kevin Wigle [SMTP:[EMAIL PROTECTED]] > > Sent: 17 January 2002 02:32 > > To: [EMAIL PROTECTED] > > Subject: Re: First Impressions - CCIE Practical Studies [7:32237] > > > > hmmm.. don't know why you said that "I had the same shipping > > problem..." > > > > I didn't read that in Chuck's post. > > > > However, on the same topic, I just got my copy yesterday. > > > > I bought mine from Pearson Education for $48.75 with $7.00 shipping > > ordinary > > mail to Canada. > > > > It took 2 weeks which was fine with me. > > > > Like Chuck I am immediately impressed by the authors/reviewers. All told > > - > > 9 - CCIEs. I am just getting through chapter one but I have perused the > > appendices and Chapter 18 (the timed labs). I'm excited with what "looks" > > like is there. Can't wait to devote more time to it. > > > > Kevin Wigle > > > > > > - Original Message - > > From: "Steven A. Ridder" > > To: > > Sent: Wednesday, 16 January, 2002 20:43 > > Subject: Re: First Impressions - CCIE Practical Studies [7:32237] > > > > > > > I got my CCIE Practical Studies book via half.com yeaterday and I had > > the > > > same shipping problem. I saved about $25 on the price of the book, but > > the > > > delivery took over 3 1/2 weeks! I don't think there was even a stamp or > > > postmark on the media mail package, so I have no idea how it arrived > > > I'd just as soon pay Amazon's price and get normal shipping (plus my > > company > > > re-imburses me for all books I buy anyways). > > > > > > The book looks pretty good, but some people have told me that the book > > is > > > still simple compared to the lab iteslf. But all in all, it does give > > you > > a > > > blueprint of topics to study, then you can branch off in each subject > > for > > > more in-depth studies in other books, etc. > > > > > > ""Chuck Larrieu"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Just got my copy. > > > > > > > > Reading the "About the Authors" section alone is impressive. All those > > > > associated with the book are CCIE's. I look forward to discovering if > > > there > > > > are any errors in the book. One would hope not, given the credentials > > of > > > the > > > > writers and reviewers, one of whom was the Halifax Lab Proctor for > > several > > > > years. > > > > > > > > So far I have browsed all of the first chapter "The Key Components for > > > > Modeling an Internetwork" > > > > > > > > This chapter covers in good detail all those basic questions - the > > config > > > > register, configuring a router as a frame switch, password recovery, > > show > > > > and debug ( called "the big show" and "the big d" respectively, > > throughout > > > > the book. ) building a terminal server, and much much more. This alone > > > tells > > > > me that this book might be a good investment for those just starting > > out, > > > as > > > > well as those prepping for the CCIE Lab. Sure, all of this information > > is > > > > available elsewhere, but with this book, it is in one place, easily > > > located, > > > > and clearly explained. > > > > > > > > There is even a section about configuring networking on windoze > > computers. > > > > Considering the number of raw beginners who are coming into the > > > > certification process, this is helpful. > > > > > > > > I'll have more comments after I have had a chance to look at the > > "good" > > > > stuff. > > > > > > > > Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32294&t=32294 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Can the Pix do this? [7:32320]
I have a Pix 515 running ver. 6.1. I have a host that will be made available to the public for a web-enabled product demonstration. Parts of the product are NOT located on my internal network, so host needs to cross the firewall to function properly. Can I add a line to my access list that will allow this particular host access ONLY to two or three different IP addresses, and deny it access to the rest of the www? Could someone give me a little help with the syntax? Would it be something like this: access-list 101 permit ip 255.255.0.0 255.255.255.0 Can I put all the addresses that I want to allow the host to access in one line? Do I need 3 separate lines? Should I put a deny statement at the end? Will this even work? Am I high? Just kidding, thanks in advance. Kris. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32320&t=32320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: First Impressions - CCIE Practical Studies [7:32237]
I have a similar impression of the book. While it is very useful and has lots of good information, it is littered with typos and minor errors that you *should* be able to spot. I'm hoping they'll get an errata posted soon, but I wouldn't count on it happening too quickly. >>> "R. Benjamin Kessler" 1/17/02 10:21:29 AM >>> I have a couple of "nit-picky" complaints about the book (as I do about almost every book I read). There are some typo's as a previous poster indicated. One of my biggest pet peeves is the use of the term "continuous" when the author (probably) means "contiguous" - one sees this most often when discussing OSPF. Note, this book isn't unique in this mis-use of the term; there are many CCO documents that also make this "error." I'm assuming that this is the product of a spell-checker that didn't know the term contiguous, suggested continuous and someone hit "replace all." Before the flame-war starts, I know that these two words have *similar* meanings but in this case I - my personal opinion - think that contiguous is 'more right' - besides, it's the term used in the RFC. Since I'm picking nits; the author indicates that the OSPF process ID on a router should be thought of "as an Autonomous System ID. This number should be the same on all routers within the autonomous system." Per CCO, this is a locally significant setting used only to distinguish between multiple OSPF routing process on a particular router. If we were to apply the RFC2119 definition of "should" to this statement one might think that certain problems may occur if this practice wasn't followed. I don't believe this to be the case but I'm sure someone on the list will correct me if I'm wrong. There's nothing wrong with using the same process ID on all of your OSPF routers; I would guess that networks are configured that way more often than not; but isn't a requirement. Given that the lab exam is all about splitting hairs to the most minute detail and knowing the various protocols in depth, it probably should have been noted (as in other texts) that two adjacent routers can have different process IDs configured. There are some outright mistakes in the book - I just checked the CiscoPress site for an errata and didn't see one yet. Here one that I recall off the top of my head: EIGRP - (p.691) at the bottom of the page, the 'distance' command. - this is almost a direct copy/paste from the IGRP chapter; does not include the required information to change the admin distance of the EIGRP routing process (which requires both an internal and external distance); it only lists the syntax to change the distance of a specific neighbor's updates. I find it funny that the EIGRP chapter says "For a specific example and more practice with the 'distance' command, see" the IGRP chapter. When you look at the IGRP chapter, it uses the same sentence to point you to the RIP chapter. Anyone who has walked into an EIGRP network with multiple, unfiltered redistribution points into a RIP domain will know first-hand the importance of knowing how a router handles internal vs. external EIGRP routes. Additionally, I thought the section on PPP authentication could have used some more work on the one-way authentication options (both PAP and CHAP). Bottom-line, this seems to be a well written book; it gives you some good examples and labs to work on your own, etc. It won't replace any of the other "must haves" on the bookshelf (e.g. Doyle, Caslow, Thomas, etc.) and unfortunately, (as it seems with all of the books published these days) you have to play 'reporter' and verify the information in the book with some other source (CCO, RFCs, other texts) - this is a topic I could rant on for quite some time (considering the $thousands - literally - I've spent on training materials which contain errors). -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 16, 2002 7:18 PM To: [EMAIL PROTECTED] Subject: OT: First Impressions - CCIE Practical Studies [7:32237] Just got my copy. Reading the "About the Authors" section alone is impressive. All those associated with the book are CCIE's. I look forward to discovering if there are any errors in the book. One would hope not, given the credentials of the writers and reviewers, one of whom was the Halifax Lab Proctor for several years. So far I have browsed all of the first chapter "The Key Components for Modeling an Internetwork" This chapter covers in good detail all those basic questions - the config register, configuring a router as a frame switch, password recovery, show and debug ( called "the big show" and "the big d" respectively, throughout the book. ) building a terminal server, and much much more. This alone tells me that this book might be a good investment for those just starting out, as well as those prepping for the CCIE Lab. Sure, all of this information is available elsewhere, but with this book, it is in one place, easily loc
RE: Can the Pix do this? [7:32320]
Some of my message got filtered in the last one, the syntax was supposed to look like this: access-list 105 permit ip (outside address) 255.255.0.0 (demohost) 255.255.255.0 Thanks, Kris. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32322&t=32320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Off Topic - Half.com book purchase [7:32234]
I ordered one too. I have a choice of "priority mail". I guess it's depend on the seller. I wanted to use bookpool but the book I want is not available there. Jim --- Chuck Larrieu wrote: > Based on my first experience with this means of > purchasing books, I have the > following observations: > > 1) price is great > > 2) service / delivery sucks > > Don't be in a hurry when you use this subsidiary of > e-bay. from the postmark > to my hands was about a week, but the postmark is > two weeks after I placed > the order and the order was accepted. > > you have no choice for shipping. media mail ( > "media" is apparently Eskimo > for "dog sled via the north pole" ) is the only > option. > > reading the site, I see that comments from other > customers are all over the > board. about equal good and bad. the bad all revolve > around turnaround time. > > I chose half.com because they claimed to have the > book in stock at the time > I was ordering. Other places stated no availability. > I suspect a part of the > problem with the particular book I ordered is that > is it is newly released, > and the seller ( some small shop in New Jersey ) > accepted my bid thinking > they could get the book through distribution and > found they had to wait for > the release. > > for my money, bookpool is still the way to go. [EMAIL PROTECTED] __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32323&t=32234 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: EIGRP neighbor limitations [7:32058]
The general guidance for EIGRP is less than 30 neighbors, and, within my organizations, we try to limit to 25/26. The issues are numerous and, of course, specific to your network, but EIGRP is a very active protocol when something fails. The CPU, memory and bandwidth required to resolve the new topology can be significant. Having said that, I have seen networks in the 100-125 neighbor range that worked for a while. I think all of them have now broken things up into smaller areas. You may want to look at ODR, statics, RIP v2 and other methodologies before accepting this customer demand. You may also want to send the 'reason' the customer is asking for this - VLSM, rest of net is EIGRP, operational experience, Cisco marketing... Good luck. --- MADMAN wrote: > I don't think you'll find a hard doc as there are > too mny variables. > In what you are describing I would feel fine using > EIGRP, just make sure > you have a decent router with plenty, i.e. not the > minimum recommended, > memory. > > my gut feeling... > > Dave > > > "Robertson, Douglas" wrote: > > > > This is actually for a practical issue, I have a > customer that wants to > > implement +-400 remote sites connected with > redundancy to two core routers. > > Each router will have three T1's and the 400 sites > will be split between > the > > three T1's. This still brings the EIGRP to +-133 > EIGRP neighbors per > > interface and 400 neighbors per router. The > customer wants to run EIGRP. I > > am asking this question to determine if this will > be an issue and to find > > documentation to back this up. The alternative > would be to run OSPF or BGP > > but I need backup info to get the customer to > change. > > > > Thanks Doug > > > > -Original Message- > > From: MADMAN [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, January 15, 2002 4:49 PM > > To: [EMAIL PROTECTED] > > Subject: Re: EIGRP neighbor limitations [7:32058] > > > > I don't know about a hard limit but me thinks > you'll hit the practical > > limit first anyway:) Is this an acedemic > question??? > > > > Dave > > > > "Robertson, Douglas" wrote: > > > > > > Does anyone know of limitation in the amount of > EIGRP neighbors on a > > router. > > > If there is, is this a limitation per physical > interface or a limitation > > > per router. I found a document on CCO a couple > of months ago that > > mentioned > > > these limits but I have now searched and > searched but cannot find that > > > document again. > > > > > > Appreciate any input > > > > > > D. Robertson > > -- > > David Madland > > Sr. Network Engineer > > CCIE# 2016 > > Qwest Communications Int. Inc. > > [EMAIL PROTECTED] > > 612-664-3367 > > > > "Emotion should reflect reason not guide it" > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" [EMAIL PROTECTED] = Robert Padjen __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32324&t=32058 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Is the last site by any chance through an NNI link ? Have your tried frame-relay lmi-type ansi at both ends ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32326&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
IOS Meaning [7:32325]
Hey at the ending of c5rsm-jsv-mz.120-3c.W5.8.bin, what does the w5.8 mean? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32325&t=32325 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Can the Pix do this? [7:32320]
dependsyou have to check the apps people who wrote it... Some apps will not work no matter what you do with NAT (This is a VERY common problem with MS DCOM) so be weary. -Patrick >>> "Kris Waters" 01/17/02 12:45PM >>> I have a Pix 515 running ver. 6.1. I have a host that will be made available to the public for a web-enabled product demonstration. Parts of the product are NOT located on my internal network, so host needs to cross the firewall to function properly. Can I add a line to my access list that will allow this particular host access ONLY to two or three different IP addresses, and deny it access to the rest of the www? Could someone give me a little help with the syntax? Would it be something like this: access-list 101 permit ip 255.255.0.0 255.255.255.0 Can I put all the addresses that I want to allow the host to access in one line? Do I need 3 separate lines? Should I put a deny statement at the end? Will this even work? Am I high? Just kidding, thanks in advance. Kris. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32327&t=32320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Are you positive you have the DLCI assignments the same as in the 3COM router you replaced? What do 'show frame map' and 'show frame pvc' look like? Do you have any PVCs that are UNUSED/INACTIVE? On the remote side that is UP/DOWN, do you see any incoming packets at all or does it think the interface is up simply because DTR is high? What does show interface show on the remote side? Equal numbers of LMI enquiries sent compared to stats received? Thanks, John >>> "Bob Timmons" 1/17/02 10:35:42 AM >>> On S5/1 I get UP/UP. On S5/1.4, I get UP/UP on our side and UP/UP on the remote side. On S5/1.3 I get Down/Down on our side and Up/Down on their side. > What do you mean, specifically? Does the line protocol never come up? > Does the line protocol come up yet OSPF adjacencies do not form? Does > the physical interface even come up? > > Thanks, > John > > >>> "Bob Timmons" 1/17/02 9:22:54 AM >>> > We're switching our routers from 3Com to Cisco and we're having > trouble at one of our sites. We've got a hub-and-spoke configuration > from our central site to 4 other sites. 3 of the sites come up when > we switch the hardware to Cisco (simply moving the CSU from the 3Com > router to the Cisco router), the 4th does not. I'm including the > Central Site config and 2 of the remotes (Site 1 comes up, Site 2 does > not). > > We've changed out the router (including the serial ports), csu, serial > cable, rj45's, everything. It's not a hardware problem. We changed > the CSU on the central site, just to see if it would help. No go. > > Please let me know if you see something weird. > > I've replaced the DLCI #'s with letters, but they match up (i.e. if > it's ABC in site 1, it matches to ABC in central site). I didn't > include configs for sites 3 & 4, but they're identical with the > exception of the DLCI's and IP's. (and they work as well). > > Something I had thought about... this site is in Canada and we're in > the US as well as the other 3 sites. Would there be any caveats > regarding international connections? Again, everything works when > connected to the 3Com equipment, it's only when we connect up the > Cisco's that site 1 fails. > > Thanks for any input. > > Bob > > -- > Site 1 (This site works fine) > > Current configuration: > ! > version 12.0 > > ip subnet-zero > > interface Serial0/0 > ip address x.x.53.26 255.255.255.252 > no ip directed-broadcast > encapsulation frame-relay > ip ospf network point-to-point > ip ospf dead-interval 60 > no ip mroute-cache > no fair-queue > frame-relay interface-dlci ABC > -- > Site 2 (This site does not come up) > > Current configuration: > ! > version 12.0 > > ip subnet-zero > > interface Serial0/0 > ip address x.x.53.2 255.255.255.252 > no ip directed-broadcast > encapsulation frame-relay > ip ospf network point-to-point > ip ospf dead-interval 60 > no ip mroute-cache > no fair-queue > frame-relay interface-dlci XYZ > -- > Central Site > > Current configuration: > version 12.0 > > ip subnet-zero > > interface Serial5/1 > no ip address > no ip directed-broadcast > encapsulation frame-relay > ip ospf dead-interval 60 > ! > interface Serial5/1.1 point-to-point > ip address x.x.53.17 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > ipx network 92 > frame-relay interface-dlci GHI > ! > interface Serial5/1.2 point-to-point > ip address x.x.53.21 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > ipx network 54B > frame-relay interface-dlci DEF > ! > interface Serial5/1.3 point-to-point > bandwidth 64000 > ip address x.x.53.1 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > frame-relay interface-dlci XYZ > ! > interface Serial5/1.4 point-to-point > bandwidth 64000 > ip address x.x.53.25 255.255.255.252 > no ip directed-broadcast > ip ospf network point-to-point > ip ospf dead-interval 60 > frame-relay interface-dlci ABC > -- Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32328&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: cisco partner e-learning impressions [7:32329]
this Cisco offering is for partners only. http://cisco.partnerelearning.com ( requires Cisco partner login ) I've been kinda eyeballing the free labs there, and have not seen anything was wasn't for the most part mindless. anyone else done any work here and want to give feedback? Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32329&t=32329 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: **stupid router tricks [7:32213]
Or change the router hostname to Router(boot)> or rommon> Jim --- Priscilla Oppenheimer wrote: > I once had a student who Telnetted to every other > router in the lab and > changed the banner message of the day to say > something like: > > SYNTAX ERROR > ROUTER CANNOT INITIALIZE > CONTACT CISCO TECHNICAL SUPPORT IMMEDIATELY > > Another good one is to change the router's hostname > to # or > or to the > name of some other router that you frequently Telnet > to. > > ;-) > > Priscilla > > At 04:12 PM 1/16/02, Eric Waguespack wrote: > >over the years, of working on cisco routers & > >lurking in this group, I have learned a few 'cool' > >tricks you can do with cisco routers, has anyone > seen > >a compiled list of "stupid router tricks" ? > > > > > >e.g. > > > >-making your router a dhcp server > > > >-making your router a tftp server > > > >-back to back frame relay (no dedicated frame-relay > >switch) > > > >-ip over aux port > > > >-login without a password (conf t - line vty 0 4 - > >privilege level 15) > > > >here is where my memory fails me, can you guys > think > >of anymore? > > > > > >__ > >Do You Yahoo!? > >Send FREE video emails in Yahoo! Mail! > >http://promo.yahoo.com/videomail/ > > > Priscilla Oppenheimer > http://www.priscilla.com [EMAIL PROTECTED] __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32330&t=32213 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: cisco partner e-learning impressions [7:32329]
I tried to reboot the routers just to see if they were real. I was also doing test crash's a few weeks ago to see if they had any servers that would get any alarms. They were real routers. I didn't get to play with their rommon, cause I thought it would have been to mean. (You connect through an access server). Other than that, there wasn't anything anyone studying for the CCIE would need. -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ATM Questions [7:32333]
Quick question: I am looking into buying a used 3920 TR switch and this guy who is selling it includes the ATM module--WS-C3900-ATMSC and I am not sure what's the use of it. Any idea? Ed www.router4u.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32333&t=32333 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Can the Pix do this? [7:32320]
The pix can easily do this. Use one line for each outside address that you want the inside client to access. You don't say what port you're contacting on the outside, but you should also limit contact by port. For example: access-list 101 permit tcp host 192.168.1.1 host 1.1.1.1 eq www access-list 101 permit tcp host 192.168.1.1 host 1.1.1.2 eq www access-list 101 permit tcp host 192.168.1.1 host 1.1.1.3 eq www access-list 101 deny ip host 192.168.1.1 any Hope this helps. However, I recommend that you have your pix config reviewed by a security guru to verify that you haven't accidentally opened your network up. Craig At 12:45 PM 1/17/2002 -0500, you wrote: >I have a Pix 515 running ver. 6.1. I have a host that will be made available >to the public for a web-enabled product demonstration. Parts of the product >are NOT located on my internal network, so host needs to cross the firewall >to function properly. Can I add a line to my access list that will allow >this particular host access ONLY to two or three different IP addresses, and >deny it access to the rest of the www? Could someone give me a little help >with the syntax? Would it be something like this: > >access-list 101 permit ip 255.255.0.0 255.255.255.0 > >Can I put all the addresses that I want to allow the host to access in one >line? Do I need 3 separate lines? Should I put a deny statement at the end? >Will this even work? Am I high? Just kidding, thanks in advance. > >Kris. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32332&t=32320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ATM Questions [7:32333]
Also, what do you think it's the fair price for this? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32334&t=32333 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Bob,, You need to verify the LMI on the Canadian end...Cisco uses Strata (surprise) and Bell Canada uses Ansi or Annex A or Ddepends on where you are...I use to manage a network with several sites in the northland and we ran into this consistently. You can have different types of LMI in your network and it runs fine. Terry Vore At 11:22 AM 1/17/2002 -0500, you wrote: >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32337&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
IPSec passthrough [7:32338]
Hello, One of my clients use Cisco VPN client behind a SpeedStream 5660 DSL router to connect to a 3030 but it doesn't work. I remembered seeing "enable IPSec passthrough" on other routers, but there is no such option on SpeedStream 5660. What's "IPSec passthrough"? Does it do anything on the IP packets? Thanks in advance. Jim __ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32338&t=32338 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question on RSM PCMCIA, and Squeeze [7:32315]
Yep, it will remove from flash images that are marked as deleted. Sasa CCIE #8635 Richard Tufaro wrote: > > Hey guys, I have a question that maybe one of you can answer really quick. > Im in the processes of upgrading an RSM with a PCMCIA card in Slot0. > Currently there are 2 IOS images that are on it. One of them is the current > production and the other one is a older IOS. I did a delete slot0: > oldverofIOS.bin from the prompt and then it marked it for deletion. Now when > I do a squeeze will it erase it from the card so that I can put a new > version of IOS on it? Here is some info. > > CR-RSM#show flash > -#- ED --type-- --crc--- -seek-- nlen -length- -date/time-- name > 1 .D unknown E04A4755 656214 28 6513044 Jan 01 2000 00:08:13 > c5rsm-isv-mz.120-3c.W5.8.bin > 2 .. unknown 94AAC7D2 DFA514 28 8012416 Jul 22 2001 22:39:44 > c5rsm-jsv-mz.120-3c.W5.8.bin > 3 .. config A5D1B387 DFB6D0 14 4410 Jul 22 2001 23:10:08 > startup-config > > 1853744 bytes available (14530256 bytes used) > > Richard Tufaro - MCSE - GSEC- CCNA > Network Engineer - Anda Inc. > [EMAIL PROTECTED] > MSN IM - [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32336&t=32315 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Copying Config to router via snmp [7:32027]
In case anyone's really sad, have a go with the following. You can see where the changes need to be made to fit your own requirements. Please don't do this on a production network until you've played with it enough for it to be your own fault rather than mine :-) Gaz snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.14.11 integer 6 rem Initialise a new copy operation snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.14.11 integer 5 rem Set the ccCopySource FileType to "4" (running-config) snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.3.11 integer 4 rem Set the ccCopyDest FileType to "1" (network file) snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.4.11 integer 1 rem Set the ccCopyServerAddress to TFTP Server snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.5.11 a 192.168.80.127 rem Set the ccCopyFileName to whatever snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.6.11 s config.txt rem Start the process. snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.14.11 integer 1 rem Now return some states snmpget -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.10.11 snmpget -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.10.11 snmpget -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.13.11 rem Destroy the process. snmpset -v1 192.168.80.254 communitystring .1.3.6.1.4.1.9.9.96.1.1.1.1.14.11 integer 6 wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > In case anyone is interested and needs to copy lots of configs etc with > SNMP, there is a very useful tool called Pancho which can you this. > > It can be found at http://pancho.lunarmedia.net/ > > Regards, > > Dom Stocqueler > > > > > "Paul > Watson" > > cc: > Sent by: Subject: Re: Copying Config to > router via snmp [7:32027] > > nobody@groups > > tudy.com > > > > 17/01/2002 > > 10:35 > > Please > respond > to > "Paul > Watson" > > > > > > > Thanks to all who replied. I downloaded the SolarWinds Eval and uploaded > the > config. Thanks for the help. > > > -- > Paul B. Watson > Network Engineer > Inchcape Shipping Services > [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32339&t=32027 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCIE Lab Waiting Period [7:32232]
I ran into the same thing in November, July 18 was the earliest date I could get. I'm wondering if their system was revamped, or if they just added more seats? Either way, I've already scheduled mine for July, and while I'm tempted to move it up, I'm going to just take the extra prep time. > -Original Message- > From: Darrell Newcomb [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, January 16, 2002 9:22 PM > To: [EMAIL PROTECTED] > Subject: Re: CCIE Lab Waiting Period [7:32232] > > > Now you have me interested since I haven't found much of any time to > prepare for and thus schedule the lab. I logged in and in March see > sparse(if any) availability all the way to July. Argh! Time > for me to > fish or cut bait this quarter. > > So that answers Ed's question that he could run in and take the exams > quickly. But it seems as Chuck is pointing out that since > March on were > based on the 1 day schedule that things will change soon. > > Chuck Larrieu wrote: > > > > Dare I release my currently scheduled date so I can look? ;-> > > > > the rule of thumb is that you can book a date this week or > in six months, > > but nothing in between. > > > > Also, I believe Cisco is opening up dates on a month by > month basis. In > > other words, say for the month of February the schedule was > based on the > two > > day lab. So in late January Cisco opens up the 14 days > formerly reserved > for > > the second day of the two day lab. So for a very brief > period of time there > > are a number of openings available in February. This was > certainly true a > > couple of months ago when I was trying to book my next attempt. > > > > Chuck > > > > ""Darrell Newcomb"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > I was presently surprised to see quite a lot of > availability for Lab > > > testing in San Jose. I'll let others comment on > comparing to other > > > exams. > > > > > > Ed Chuchaisri wrote: > > > > > > > > Guys, > > > > > > > > I wonder when is the earliest R/S lab available in San > Jose if I passed > > the > > > > written today? I heard that it still takes at least 6 > months even > > though > > > > Cisco has changed the lab to a 1-day format. > > > > > > > > And how do you compared the written exam to other Cisco > Exam like CID > > 3.0 > > > (I > > > > think this is the most challenging one out there), > Routing 2.0, and > > > > switching 2.0. Is it true that written exam for R/S is > the combination > > of > > > > Routing 2.0 and switching 2.0 together. How many > questions by the way? > > > > > > > > Thanks, > > > > > > > > Ed > > > > www.router4u.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32340&t=32232 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: TOS (TOS 0)routes?? [7:32242]
The At 08:48 PM 1/16/02, Cisco Nuts wrote: >Hello, >I have been trying to find out what exactly does TOS(TOS0) routes mean in >OSPF but am having no luck. Tried CCO, Doyle books, CCNP books etc. >EG: >RTA#sh ip ospf >Routing Process "ospf 1" with ID 15.15.15.1 >Supports only single TOS(TOS0) routes It's referring to the Type of Service (TOS) bits within the Type of Service field in the IP header. These bits were originally intended to help a router select a routing path when multiple paths to a particular destination were available. That meaning for the bits is obsolete now. The field is now called the Differentiated Services field. Early OSPF RFCs said that OSPF should support routing based on the setting of the Type of Services bits. Newer OSPF RFCs don't say that anymore. It proved impractical. TOS 0 means that the router doesn't pay attention to the setting of the bits. The OSPF process supports only one type of service, which could be called type 0, and is just the ordinary default behavior, without reference to the setting of the TOS bits. Here's some background info from my up-and-coming book: The IP Type of Service field specifies both precedence and type of service. Precedence helps a router determine which packet to send when several packets are queued for transmission to the same output interface. Type of service helps a router select a routing path when multiple paths to a particular destination are available. The 4-bit Type-of-Service subfield supports four types of service. (Note that the subfield has the same name as the major field, which can be confusing.) The goal of the Type of Service subfield is to help a router select a route from a set of routes to a particular destination, especially when the routes have different characteristics. Routing protocols attempt to determine the best route to a destination, but there are several definitions of best -- cheapest, fastest, most reliable, least delay, and so on. According to RFC 1349, which clarified the use of the Type of Service byte (but is now obsolete), the Type of Service subfield has four bits that specify the routing service that an application wishes to receive from a router. An application or host can set one (and only one) of the four bits: 1 The delay bit (D) tells routers to minimize delay 2 The throughput bit (T) tells routers to maximize throughput 3 The reliability bit (R) tells routers to maximize reliability 4 The cost bit (C) tells routers to minimize monetary cost Setting the D bit is suitable for interactive applications, such as Telnet and Rlogin. When the D bit is set, a router should select a path that minimizes delay, for example, a dedicated high-speed leased line instead of a shared Frame Relay link. File transfer applications, or any applications that send bulk data, can set the T bit. Setting the T bit tells routers to select high-throughput links. Network management and mission-critical applications can set the R bit. Setting the R bit tells routers to select reliable paths. Applications for which delay, throughput, or reliability are not critical -- but a low monetary cost is important -- set the C bit. Some implementations of the Network News Transfer Protocol (NNTP), which reads UseNet news, set the C bit, presumably because reading news is not a critical activity and should not use a lot of monetary resources. In practice, routing protocols and routers never had good methods for handling these bits. Selecting a path based on the setting of these bits proved to be impractical. Although early versions of the Open Shortest Path First (OSPF) and Border Gateway Protocol (BGP) routing protocols specified support for the bits, newer versions of OSPF and BGP specifications do not require support for routing based on the setting of the bits. Differentiated Services RFC 1349 was declared obsolete with the publication of RFC 2474, "Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers," and RFC 2475, "An Architecture for Differentiated Services." Per these newer RFCs, the Type of Service field became the DS field. The DS field has two currently unused (CU) bits at the end. The first six bits are called the Differentiated Services Codepoint (DSCP). And that's probably way more than you ever wanted to know. Priscilla >Can someone help? > >Thank you. > >_ >Join the worlds largest e-mail service with MSN Hotmail. >http://www.hotmail.com Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32342&t=32242 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Bandwith [7:32264]
Actually that's not exactly true. There are two different types of traffic shaping, GTS and FRTS. FRTS is specific to frame, but GTS as used in the example below works just fine with any interface. Very simular to traffic shaping is policing, which can be accomplished by CAR (the rate-limit command) or class based policing. I would recommend class based policing if possible because it will allow you to use CEF and possibly tag for QoS in the future. So what's the difference between shaping and policing? Policing is more strict and more likely to be used on a service provider router limiting a customer while shaping is more likely to be used on a customer router going to a service provider. Mike --- Mike Bernico [EMAIL PROTECTED] Illinois Century Network http://www.illinois.net (217) 557-6555 > -Original Message- > From: Dion, Thierry [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 17, 2002 10:53 AM > To: [EMAIL PROTECTED] > Subject: RE: Bandwith [7:32264] > > > traffic shapping is use with FR if U haven't FR, TR will not work. > > T.dion > CCNP certified > > -Message d'origine- > De : Hire, Ejay [mailto:[EMAIL PROTECTED]] > Envoyi : jeudi 17 janvier 2002 16:04 > @ : [EMAIL PROTECTED] > Objet : RE: Bandwith [7:32264] > > > For Ios 11.3 you can restrict outbound traffic rates, using > the traffic > shape command, but I don't know how to do incoming traffic. > interface serial 0/0 > traffic-shape rate 131072 > > In Ios 12.0, there is a handy feature that will do what you > want...you can > rate-limit it. > > interface Serial 0/0 > rate-limit input 131072 0 0 conform-action transmit > exceed-action drop > rate-limit output 131072 0 0 conform-action transmit > exceed-action drop > > And, you can set burst sizes on these to allow your customer > to go above the > maximum rate for short periods of time. If you wanted to > give them 128k, > but burstable to 256k, then it would be > interface serial 0/0 > rate-limit input 131072 131072 131072 conform-action > transmit exceed-action > drop > rate-limit output 131072 131072 131072 conform-action transmit > exceed-action drop > > (The first 131072 is the 128k committed. The second and > third 131072 is the > additional 128k burstable. the format of the command is rate-limit > (input/output) (cir) (normal-cbr) (max-cbr) conform-action > (...) exceed > action (...)) > > To verify the configuration > Show interface serial 0/0 rate-limit... > > Let me know if you need more help. > > -Ejay > > p.s. Expiring .net company Cisco Consultant for sale or rent > (me). Contact > off-list for $ > > -Original Message- > From: kaushalender [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 17, 2002 2:24 AM > To: [EMAIL PROTECTED] > Subject: Bandwith [7:32264] > > > Hi all, > > > I have 2610 router on which i want that i can restrict bandwith to > 128kbs on serial port which is directly connected to my customer's > router on HDSL encapsulation . How can i do that whithout > using modem in > between .Plz guide me . > > Thanx in advance > kaushalender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32341&t=32264 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: First Impressions - CCIE Practical Studies [7:32237]
At 12:21 PM 1/17/02, R. Benjamin Kessler wrote: >I have a couple of "nit-picky" complaints about the book (as I do about >almost every book I read). There are some typo's as a previous poster >indicated. One of my biggest pet peeves is the use of the term "continuous" >when the author (probably) means "contiguous" - one sees this most often >when discussing OSPF. That says that the author didn't look at the copy-edited material. New authors assume that publisher's copy editors have a clue. They don't. They apply rules for "fixing" words and sentences without any idea what they are doing. This means that you will probably find other minor mistakes in the book too. Don't blame the author, although the author should have been more careful during the final phases of the book project. Cisco Press copy editors once changed every case of Mbps to MByte in a book! In my book, in the index, they changed long fat network (LFN) to long file names. See RFC 1323 for the true meaning of elephant (LFN). Thanks for your thorough review of the book. Priscilla > Note, this book isn't unique in this mis-use of the >term; there are many CCO documents that also make this "error." I'm >assuming that this is the product of a spell-checker that didn't know the >term contiguous, suggested continuous and someone hit "replace all." Before >the flame-war starts, I know that these two words have *similar* meanings >but in this case I - my personal opinion - think that contiguous is 'more >right' - besides, it's the term used in the RFC. > >Since I'm picking nits; the author indicates that the OSPF process ID on a >router should be thought of "as an Autonomous System ID. This number should >be the same on all routers within the autonomous system." Per CCO, this is >a locally significant setting used only to distinguish between multiple OSPF >routing process on a particular router. If we were to apply the RFC2119 >definition of "should" to this statement one might think that certain >problems may occur if this practice wasn't followed. I don't believe this >to be the case but I'm sure someone on the list will correct me if I'm >wrong. There's nothing wrong with using the same process ID on all of your >OSPF routers; I would guess that networks are configured that way more often >than not; but isn't a requirement. Given that the lab exam is all about >splitting hairs to the most minute detail and knowing the various protocols >in depth, it probably should have been noted (as in other texts) that two >adjacent routers can have different process IDs configured. > >There are some outright mistakes in the book - I just checked the CiscoPress >site for an errata and didn't see one yet. Here one that I recall off the >top of my head: > >EIGRP - (p.691) at the bottom of the page, the 'distance' command. >- this is almost a direct copy/paste from the IGRP chapter; does not include >the required information to change the admin distance of the EIGRP routing >process (which requires both an internal and external distance); it only >lists the syntax to change the distance of a specific neighbor's updates. I >find it funny that the EIGRP chapter says "For a specific example and more >practice with the 'distance' command, see" the IGRP chapter. When you look >at the IGRP chapter, it uses the same sentence to point you to the RIP >chapter. > >Anyone who has walked into an EIGRP network with multiple, unfiltered >redistribution points into a RIP domain will know first-hand the importance >of knowing how a router handles internal vs. external EIGRP routes. > >Additionally, I thought the section on PPP authentication could have used >some more work on the one-way authentication options (both PAP and CHAP). > >Bottom-line, this seems to be a well written book; it gives you some good >examples and labs to work on your own, etc. It won't replace any of the >other "must haves" on the bookshelf (e.g. Doyle, Caslow, Thomas, etc.) and >unfortunately, (as it seems with all of the books published these days) you >have to play 'reporter' and verify the information in the book with some >other source (CCO, RFCs, other texts) - this is a topic I could rant on for >quite some time (considering the $thousands - literally - I've spent on >training materials which contain errors). > >-Original Message- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] >Sent: Wednesday, January 16, 2002 7:18 PM >To: [EMAIL PROTECTED] >Subject: OT: First Impressions - CCIE Practical Studies [7:32237] > > >Just got my copy. > >Reading the "About the Authors" section alone is impressive. All those >associated with the book are CCIE's. I look forward to discovering if there >are any errors in the book. One would hope not, given the credentials of the >writers and reviewers, one of whom was the Halifax Lab Proctor for several >years. > >So far I have browsed all of the first chapter "The Key Components for >Modeling an Internetwork" > >This chapter covers
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Thanks everyone for all the input... We're doing another test today at 4pm (EST) so I'll get more info and I'll try using different lmi-types. I seem to remember trying ansi, but I'll give it another go and I'll document all of the show frame map/pvc/etc in case it doesn't work again. Am I correct in assuming that the LMI is set only at the interface level and the subinterfaces will get it from the interface? > Bob,, > > > You need to verify the LMI on the Canadian end...Cisco uses Strata > (surprise) and Bell Canada uses Ansi or Annex A or Ddepends on where > you are...I use to manage a network with several sites in the northland and > we ran into this consistently. You can have different types of LMI in your > network and it runs fine. > > Terry Vore > > > > > > > > > > > > > > > > > > > > > > > > At 11:22 AM 1/17/2002 -0500, you wrote: > >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32344&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
IPX Network Numbering [7:32335]
I have a question that's been in the back of my head for quite a while. Before I even came into this department a few years ago, Qwest !nterprise was helping our company with the network configuration. When they designed the IPX network numbering scheme they began all network numbers with CCC. I recently realized that they're numbering scheme was chosen because it could be easily summarized by NLSP, which we weren't running at the time but I think it was running for a short while. My question is why did they start all network addresses with CCC? I can understand using a scheme that can be summarized but why not simply use 1, 10001, 11000, 11001 instead of CCC1, CCC10001, etc.? Just curious if there is some reason that is eluding me. Thanks! John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32335&t=32335 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Loopback IP masking - 32 or 24 bits? or? [7:32345]
Hi, all; I recently started considering why I might want to have a 32-bit mask for my loopbacks as opposed to some other scheme - for instance using the regularly documented 24-bit mask on a loopback. I am speaking of course, of: Interface Loopback0 IP Address 10.0.0.1 255.255.255.0 versus approaching this matter in this fashion: Interface Loopback0 IP Address 10.0.0.1 255.255.255.255 So, my questions are: 1) Has any one here seen a detailed discussion of this matter? Can you provide me a link to it? 2) Based on what a friend of mine feels, his view is that there is never any benefit to having a 24-bit, or 28, or 29-bit mask on a loopback. In his view, loopbacks will always need to be, very logically, used with 32-bit masks. Can anyone please shed some light on this matter? Thank you. Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32345&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Loopback IP masking - 32 or 24 bits? or? [7:32345]
Your friend is right. Why would you use anything other than a /32 bit mask on a virtual interface? You are not going to route using the loopback address are you? Jim Walker Master Network Engineer Partners HealthCare System, Inc. Information Systems / Technical Services & Operations Tel. (617) 732-8803 Fax (617) 264-5130 This e-mail message and any attachments are confidential and may be privileged. If you are not the intended recipient, please notify me immediately by replying to this message and please destroy all copies of this message and attachments. Thank you. -Original Message- From: Joshua Dughi [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:23 PM To: [EMAIL PROTECTED] Subject: Loopback IP masking - 32 or 24 bits? or? [7:32345] Hi, all; I recently started considering why I might want to have a 32-bit mask for my loopbacks as opposed to some other scheme - for instance using the regularly documented 24-bit mask on a loopback. I am speaking of course, of: Interface Loopback0 IP Address 10.0.0.1 255.255.255.0 versus approaching this matter in this fashion: Interface Loopback0 IP Address 10.0.0.1 255.255.255.255 So, my questions are: 1) Has any one here seen a detailed discussion of this matter? Can you provide me a link to it? 2) Based on what a friend of mine feels, his view is that there is never any benefit to having a 24-bit, or 28, or 29-bit mask on a loopback. In his view, loopbacks will always need to be, very logically, used with 32-bit masks. Can anyone please shed some light on this matter? Thank you. Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32346&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Loopback IP masking - 32 or 24 bits? or? [7:32345]
outside of lab exercises, one might consider using /24's or other full subnets for purposes of NAT pool addresses. that's about all I can think of. Chuck ""Walker, Jim"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Your friend is right. Why would you use anything other than a /32 bit mask > on a virtual interface? > You are not going to route using the loopback address are you? > > > > Jim Walker > Master Network Engineer > Partners HealthCare System, Inc. > Information Systems / Technical Services & Operations > Tel. (617) 732-8803 > Fax (617) 264-5130 > This e-mail message and any attachments are confidential and may be > privileged. If you are not the intended recipient, please notify me > immediately by replying to this message and please destroy all copies of > this message and attachments. Thank you. > > > > -Original Message- > From: Joshua Dughi [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 17, 2002 3:23 PM > To: [EMAIL PROTECTED] > Subject: Loopback IP masking - 32 or 24 bits? or? [7:32345] > > > Hi, all; > > I recently started considering why I might want to have a 32-bit mask > for my loopbacks as opposed to some other scheme - for instance using > the regularly documented 24-bit mask on a loopback. > > I am speaking of course, of: Interface Loopback0 > IP Address 10.0.0.1 > 255.255.255.0 > > versus approaching this matter in this fashion: > > Interface Loopback0 > IP Address 10.0.0.1 > 255.255.255.255 > > So, my questions are: 1) > Has any one here seen a detailed discussion of this matter? > Can you provide me a link to it? > >2) Based on what a friend of mine feels, his view is that there > is never any benefit to having a 24-bit, or 28, or 29-bit mask on a > loopback. In his view, loopbacks will always need to be, very logically, > used with 32-bit masks. > > Can anyone please shed some light on this matter? > > Thank you. > > Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32347&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
router to use as frame relay switch [7:32348]
I here there is a Cisco 2600 series router that can be used to simulate a frame relay switch. Anyone know what exact model or what is required to this. If you could explain how it works or the setup I'd appreciate it. Thnaks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32348&t=32348 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Yes, the LMI is set at the interface level. However, since you're using 12.0 the router should auto-detect the LMI type. John >>> "Bob Timmons" 1/17/02 12:59:25 PM >>> Thanks everyone for all the input... We're doing another test today at 4pm (EST) so I'll get more info and I'll try using different lmi-types. I seem to remember trying ansi, but I'll give it another go and I'll document all of the show frame map/pvc/etc in case it doesn't work again. Am I correct in assuming that the LMI is set only at the interface level and the subinterfaces will get it from the interface? > Bob,, > > > You need to verify the LMI on the Canadian end...Cisco uses Strata > (surprise) and Bell Canada uses Ansi or Annex A or Ddepends on where > you are...I use to manage a network with several sites in the northland and > we ran into this consistently. You can have different types of LMI in your > network and it runs fine. > > Terry Vore > > > > > > > > > > > > > > > > > > > > > > > > At 11:22 AM 1/17/2002 -0500, you wrote: > >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32349&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: First Impressions - CCIE Practical Studies [7:32237]
It may also be that copy editors think that because it is tech, that what they see, although it does not make sense grammatically, does make sense to other techies. For a tech review I am currently working on, I had to specifically call the editor and tell him that the chapters were very poorly written, had lots of poor sentence construction, not to mention bad grammar, and that he should specifically be aware that the text made no sense no matter who was reading it. Hmmm... come to think of it, I haven't heard from those people lately. I wonder if they fired me? ;-> I suspect that in this mad rush to get tech books out the door, many of the publishing houses are operating under the assumption that whatever a tech writer writes is correct. Kinda like the emperor's new clothes? Can't be understood by a fool? Chuck ""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > At 12:21 PM 1/17/02, R. Benjamin Kessler wrote: > >I have a couple of "nit-picky" complaints about the book (as I do about > >almost every book I read). There are some typo's as a previous poster > >indicated. One of my biggest pet peeves is the use of the term "continuous" > >when the author (probably) means "contiguous" - one sees this most often > >when discussing OSPF. > > That says that the author didn't look at the copy-edited material. New > authors assume that publisher's copy editors have a clue. They don't. They > apply rules for "fixing" words and sentences without any idea what they are > doing. > > This means that you will probably find other minor mistakes in the book > too. Don't blame the author, although the author should have been more > careful during the final phases of the book project. > > Cisco Press copy editors once changed every case of Mbps to MByte in a > book! In my book, in the index, they changed long fat network (LFN) to long > file names. See RFC 1323 for the true meaning of elephant (LFN). > > Thanks for your thorough review of the book. > > Priscilla > > > Note, this book isn't unique in this mis-use of the > >term; there are many CCO documents that also make this "error." I'm > >assuming that this is the product of a spell-checker that didn't know the > >term contiguous, suggested continuous and someone hit "replace all." Before > >the flame-war starts, I know that these two words have *similar* meanings > >but in this case I - my personal opinion - think that contiguous is 'more > >right' - besides, it's the term used in the RFC. > > > >Since I'm picking nits; the author indicates that the OSPF process ID on a > >router should be thought of "as an Autonomous System ID. This number should > >be the same on all routers within the autonomous system." Per CCO, this is > >a locally significant setting used only to distinguish between multiple OSPF > >routing process on a particular router. If we were to apply the RFC2119 > >definition of "should" to this statement one might think that certain > >problems may occur if this practice wasn't followed. I don't believe this > >to be the case but I'm sure someone on the list will correct me if I'm > >wrong. There's nothing wrong with using the same process ID on all of your > >OSPF routers; I would guess that networks are configured that way more often > >than not; but isn't a requirement. Given that the lab exam is all about > >splitting hairs to the most minute detail and knowing the various protocols > >in depth, it probably should have been noted (as in other texts) that two > >adjacent routers can have different process IDs configured. > > > >There are some outright mistakes in the book - I just checked the CiscoPress > >site for an errata and didn't see one yet. Here one that I recall off the > >top of my head: > > > >EIGRP - (p.691) at the bottom of the page, the 'distance' command. > >- this is almost a direct copy/paste from the IGRP chapter; does not include > >the required information to change the admin distance of the EIGRP routing > >process (which requires both an internal and external distance); it only > >lists the syntax to change the distance of a specific neighbor's updates. I > >find it funny that the EIGRP chapter says "For a specific example and more > >practice with the 'distance' command, see" the IGRP chapter. When you look > >at the IGRP chapter, it uses the same sentence to point you to the RIP > >chapter. > > > >Anyone who has walked into an EIGRP network with multiple, unfiltered > >redistribution points into a RIP domain will know first-hand the importance > >of knowing how a router handles internal vs. external EIGRP routes. > > > >Additionally, I thought the section on PPP authentication could have used > >some more work on the one-way authentication options (both PAP and CHAP). > > > >Bottom-line, this seems to be a well written book; it gives you some good > >examples and labs to work on your own, etc. It won't replace any of the > >other "must haves" on the bookshelf (e.g. Doyle,
VLAN's [7:32351]
Have a 2948GL 3 and want to set up a vlan but it docs state that you have to set up ISL . I don't want ISL enabled. is there a way to just create VLANS like in other L3 switches? I don't want to make these routeable or anything just L2 VLANS simple VLANS ie. when I do a "int vlan 400" this would normally create a new vlan and put me into interface mode when i do a "int vlan ?" the options are to put in the vlan # but when I do all i get is a wrong command with the famous ^ at the vlan point in the command docs doc's dont seem to give enough info any Ideas thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32351&t=32351 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Sybex study guide [7:32352]
What do you all think about the CCIE Sybex study guide by John Swartz and Todd Lammie? Also, is there anyone serious about the CCIE written in the riverside, orange county area in Ca that would like to study. Ko Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32352&t=32352 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ATM Questions [7:32333]
$1400-$1500 is a pretty good price. The ATM module provides the ability to do LANE. I know Optimum Data (www.optimumdata.com) had them for a really good price at one time. Paul ""Ed Chuchaisri"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Also, what do you think it's the fair price for this? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32353&t=32333 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN's [7:32351]
I have the same switch but haven't VLAN'd it yet. I will soon. This document has great examples and should be what you need to get the idea and set it up. http://www.cisco.com/warp/public/473/29.html "" 416South"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Have a 2948GL 3 and want to set up a vlan but it docs state that you have to > set up ISL . I don't want ISL enabled. is there a way to just create VLANS > like in other L3 switches? I don't want to make these routeable or anything > just L2 VLANS simple VLANS > > ie. when I do a "int vlan 400" this would normally create a new vlan and put > me into interface mode > > when i do a "int vlan ?" the options are to put in the vlan # but when I do > all i get is a wrong command with the famous ^ at the vlan point in the > command > > docs doc's dont seem to give enough info > > any Ideas > > thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32354&t=32351 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Loopback IP masking - 32 or 24 bits? or? [7:32345]
Well, you could use part of the loopback subnet for a nat pool if your loopback is a public IP address, that is one reason you may want more than a /32 on the interface. Just throwing things out there. -Original Message- From: Walker, Jim [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:42 PM To: [EMAIL PROTECTED] Subject: RE: Loopback IP masking - 32 or 24 bits? or? [7:32345] Your friend is right. Why would you use anything other than a /32 bit mask on a virtual interface? You are not going to route using the loopback address are you? Jim Walker Master Network Engineer Partners HealthCare System, Inc. Information Systems / Technical Services & Operations Tel. (617) 732-8803 Fax (617) 264-5130 This e-mail message and any attachments are confidential and may be privileged. If you are not the intended recipient, please notify me immediately by replying to this message and please destroy all copies of this message and attachments. Thank you. -Original Message- From: Joshua Dughi [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:23 PM To: [EMAIL PROTECTED] Subject: Loopback IP masking - 32 or 24 bits? or? [7:32345] Hi, all; I recently started considering why I might want to have a 32-bit mask for my loopbacks as opposed to some other scheme - for instance using the regularly documented 24-bit mask on a loopback. I am speaking of course, of: Interface Loopback0 IP Address 10.0.0.1 255.255.255.0 versus approaching this matter in this fashion: Interface Loopback0 IP Address 10.0.0.1 255.255.255.255 So, my questions are: 1) Has any one here seen a detailed discussion of this matter? Can you provide me a link to it? 2) Based on what a friend of mine feels, his view is that there is never any benefit to having a 24-bit, or 28, or 29-bit mask on a loopback. In his view, loopbacks will always need to be, very logically, used with 32-bit masks. Can anyone please shed some light on this matter? Thank you. Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32355&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
Well, the sub-interfaces do not need the LMI, it is only used to report the information about the dlci's to the interfaceactually I have turned off the keepalives in a lab environment and still pass traffic to a frame switch.keepalives =LMI for CiscoThe other thing is to be sure of the type of FrameRelay encapsulationCisco or RFC1490Cisco routers default to CiscoThis is set at the dlci level Terry Vore At 02:59 PM 1/17/2002 -0500, you wrote: >Thanks everyone for all the input... We're doing another test today at 4pm >(EST) so I'll get more info and I'll try using different lmi-types. I seem >to remember trying ansi, but I'll give it another go and I'll document all >of the show frame map/pvc/etc in case it doesn't work again. Am I correct >in assuming that the LMI is set only at the interface level and the >subinterfaces will get it from the interface? > > > Bob,, > > > > > > You need to verify the LMI on the Canadian end...Cisco uses Strata > > (surprise) and Bell Canada uses Ansi or Annex A or Ddepends on where > > you are...I use to manage a network with several sites in the northland >and > > we ran into this consistently. You can have different types of LMI in your > > network and it runs fine. > > > > Terry Vore > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > At 11:22 AM 1/17/2002 -0500, you wrote: > > >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32356&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: router to use as frame relay switch [7:32348]
Well you need 2 routers with WIC cards then all you have to do is configure it as a clock&switch. this url shows as a back to back config but it should give you a good idea of what's involved. You need 2 routers if you plan on doing this at home. 1 as the Data clock and the other the Data termination point. DCE / DTE http://www.cisco.com/warp/public/125/frbacktoback_hybrid.html#diagram hope this helpssam sneed wrote: > > I here there is a Cisco 2600 series router that can be used to > simulate a > frame relay switch. Anyone know what exact model or what is > required to > this. If you could explain how it works or the setup I'd > appreciate it. > Thnaks. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32358&t=32348 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: router to use as frame relay switch [7:32348]
Any 2600 with serial ports can act as a frame relay switch. Go to www.cisco.com and search for 'configuring frame relay switching' and you'll find all the configuration details. HTH, John >>> "sam sneed" 1/17/02 1:55:40 PM >>> I here there is a Cisco 2600 series router that can be used to simulate a frame relay switch. Anyone know what exact model or what is required to this. If you could explain how it works or the setup I'd appreciate it. Thnaks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32359&t=32348 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: router to use as frame relay switch [7:32348]
Here is a snapshot of a 2600 running as a frame switch, you can do this with pretty much any router with multiple serial interfaces. Go to www.fatkid.com, they have some sample configs for frame relay switching on a router. You can also do a lookup on CCO for it. If you have trouble let us know. frame-relay switching ! ! voice-port 1/0/0 ! voice-port 1/0/1 ! voice-port 1/1/0 ! voice-port 1/1/1 ! ! ! ! interface FastEthernet0/0 no ip address no ip mroute-cache shutdown duplex auto speed auto ! interface Serial0/0 no ip address encapsulation frame-relay no ip mroute-cache no fair-queue clockrate 130 frame-relay intf-type dce frame-relay route 306 interface Serial0/3 603 ! interface FastEthernet0/1 no ip address no ip mroute-cache shutdown duplex auto speed auto ! interface Serial0/1 no ip address encapsulation frame-relay no ip mroute-cache clockrate 130 frame-relay intf-type dce frame-relay route 302 interface Serial0/3 203 ! interface Serial0/2 no ip address no ip mroute-cache shutdown ! interface Serial0/3 no ip address encapsulation frame-relay no ip mroute-cache clockrate 130 frame-relay intf-type dce frame-relay route 203 interface Serial0/1 302 frame-relay route 603 interface Serial0/0 306 ! ip default-gateway 10.51.1.3 ip classless no ip http server ! ! line con 0 line aux 0 line vty 0 4 login ! end -Original Message- From: sam sneed [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:56 PM To: [EMAIL PROTECTED] Subject: router to use as frame relay switch [7:32348] I here there is a Cisco 2600 series router that can be used to simulate a frame relay switch. Anyone know what exact model or what is required to this. If you could explain how it works or the setup I'd appreciate it. Thnaks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32360&t=32348 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: TOS (TOS 0)routes?? [7:32242]
Wow!! Thank you very much. >From: "Priscilla Oppenheimer" >Reply-To: "Priscilla Oppenheimer" >To: [EMAIL PROTECTED] >Subject: Re: TOS (TOS 0)routes?? [7:32242] >Date: Thu, 17 Jan 2002 14:17:27 -0500 > >The At 08:48 PM 1/16/02, Cisco Nuts wrote: > >Hello, > >I have been trying to find out what exactly does TOS(TOS0) routes mean in > >OSPF but am having no luck. Tried CCO, Doyle books, CCNP books etc. > >EG: > >RTA#sh ip ospf > >Routing Process "ospf 1" with ID 15.15.15.1 > >Supports only single TOS(TOS0) routes > >It's referring to the Type of Service (TOS) bits within the Type of Service >field in the IP header. These bits were originally intended to help a >router select a routing path when multiple paths to a particular >destination were available. That meaning for the bits is obsolete now. The >field is now called the Differentiated Services field. > >Early OSPF RFCs said that OSPF should support routing based on the setting >of the Type of Services bits. Newer OSPF RFCs don't say that anymore. It >proved impractical. > >TOS 0 means that the router doesn't pay attention to the setting of the >bits. The OSPF process supports only one type of service, which could be >called type 0, and is just the ordinary default behavior, without reference >to the setting of the TOS bits. > >Here's some background info from my up-and-coming book: > >The IP Type of Service field specifies both precedence and type of service. >Precedence helps a router determine which packet to send when several >packets are queued for transmission to the same output interface. Type of >service helps a router select a routing path when multiple paths to a >particular destination are available. > > > >The 4-bit Type-of-Service subfield supports four types of service. (Note >that the subfield has the same name as the major field, which can be >confusing.) > >The goal of the Type of Service subfield is to help a router select a route >from a set of routes to a particular destination, especially when the >routes have different characteristics. Routing protocols attempt to >determine the best route to a destination, but there are several >definitions of best -- cheapest, fastest, most reliable, least delay, and >so on. > >According to RFC 1349, which clarified the use of the Type of Service byte >(but is now obsolete), the Type of Service subfield has four bits that >specify the routing service that an application wishes to receive from a >router. An application or host can set one (and only one) of the four bits: > >1 The delay bit (D) tells routers to minimize delay >2 The throughput bit (T) tells routers to maximize throughput >3 The reliability bit (R) tells routers to maximize reliability >4 The cost bit (C) tells routers to minimize monetary cost > >Setting the D bit is suitable for interactive applications, such as Telnet >and Rlogin. When the D bit is set, a router should select a path that >minimizes delay, for example, a dedicated high-speed leased line instead of >a shared Frame Relay link. File transfer applications, or any applications >that send bulk data, can set the T bit. Setting the T bit tells routers to >select high-throughput links. Network management and mission-critical >applications can set the R bit. Setting the R bit tells routers to select >reliable paths. Applications for which delay, throughput, or reliability >are not critical -- but a low monetary cost is important -- set the C bit. >Some implementations of the Network News Transfer Protocol (NNTP), which >reads UseNet news, set the C bit, presumably because reading news is not a >critical activity and should not use a lot of monetary resources. > >In practice, routing protocols and routers never had good methods for >handling these bits. Selecting a path based on the setting of these bits >proved to be impractical. Although early versions of the Open Shortest Path >First (OSPF) and Border Gateway Protocol (BGP) routing protocols specified >support for the bits, newer versions of OSPF and BGP specifications do not >require support for routing based on the setting of the bits. > >Differentiated Services >RFC 1349 was declared obsolete with the publication of RFC 2474, >"Definition of the Differentiated Services Field (DS Field) in the IPv4 and >IPv6 Headers," and RFC 2475, "An Architecture for Differentiated Services." >Per these newer RFCs, the Type of Service field became the DS field. The DS >field has two currently unused (CU) bits at the end. The first six bits are >called the Differentiated Services Codepoint (DSCP). > > > >And that's probably way more than you ever wanted to know. > >Priscilla > > > > >Can someone help? > > > >Thank you. > > > >_ > >Join the worlds largest e-mail service with MSN Hotmail. > >http://www.hotmail.com > > >Priscilla Oppenheimer >http://www.priscilla.com _ Send and receiv
Re: VLAN's [7:32351]
Configure bridge groups on the switch, and assign ports to the bridge groups as required. CM - Original Message - From: " 416South" To: Sent: Thursday, January 17, 2002 9:03 PM Subject: VLAN's [7:32351] > Have a 2948GL 3 and want to set up a vlan but it docs state that you have to > set up ISL . I don't want ISL enabled. is there a way to just create VLANS > like in other L3 switches? I don't want to make these routeable or anything > just L2 VLANS simple VLANS > > ie. when I do a "int vlan 400" this would normally create a new vlan and put > me into interface mode > > when i do a "int vlan ?" the options are to put in the vlan # but when I do > all i get is a wrong command with the famous ^ at the vlan point in the > command > > docs doc's dont seem to give enough info > > any Ideas > > thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32361&t=32351 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Loopback IP masking - 32 or 24 bits? or? [7:32345]
you could also do a FLRP or as known in the industry as a Full Loopback Reverse Path -Original Message- From: Lupi, Guy Sent: Thursday, January 17, 2002 4:16 PM To: [EMAIL PROTECTED] Subject: RE: Loopback IP masking - 32 or 24 bits? or? [7:32345] Well, you could use part of the loopback subnet for a nat pool if your loopback is a public IP address, that is one reason you may want more than a /32 on the interface. Just throwing things out there. -Original Message- From: Walker, Jim [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:42 PM To: [EMAIL PROTECTED] Subject: RE: Loopback IP masking - 32 or 24 bits? or? [7:32345] Your friend is right. Why would you use anything other than a /32 bit mask on a virtual interface? You are not going to route using the loopback address are you? Jim Walker Master Network Engineer Partners HealthCare System, Inc. Information Systems / Technical Services & Operations Tel. (617) 732-8803 Fax (617) 264-5130 This e-mail message and any attachments are confidential and may be privileged. If you are not the intended recipient, please notify me immediately by replying to this message and please destroy all copies of this message and attachments. Thank you. -Original Message- From: Joshua Dughi [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 3:23 PM To: [EMAIL PROTECTED] Subject: Loopback IP masking - 32 or 24 bits? or? [7:32345] Hi, all; I recently started considering why I might want to have a 32-bit mask for my loopbacks as opposed to some other scheme - for instance using the regularly documented 24-bit mask on a loopback. I am speaking of course, of: Interface Loopback0 IP Address 10.0.0.1 255.255.255.0 versus approaching this matter in this fashion: Interface Loopback0 IP Address 10.0.0.1 255.255.255.255 So, my questions are: 1) Has any one here seen a detailed discussion of this matter? Can you provide me a link to it? 2) Based on what a friend of mine feels, his view is that there is never any benefit to having a 24-bit, or 28, or 29-bit mask on a loopback. In his view, loopbacks will always need to be, very logically, used with 32-bit masks. Can anyone please shed some light on this matter? Thank you. Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32364&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307]
You are correct, the LMI is set at the interface level. One command that I don't think has been mentioned is 'debug frame-relay lmi'. It's pretty safe for a debug command - it shows you what is happening between your router and the frame switch. You should see status enquiries and status messages every 10 seconds, and every 60 seconds a list of PVCs known by the switch, and their status. The 10 sec/60sec might vary depending on switch type - I'm not sure. JMcL - Forwarded by Jenny Mcleod/NSO/CSDA on 18/01/2002 08:48 am - "Bob Timmons" Sent by: [EMAIL PROTECTED] 18/01/2002 06:59 am Please respond to "Bob Timmons" To: [EMAIL PROTECTED] cc: Subject:Re: Frame-Relay problem - 3Com to Cisco (long) [7:32307] Thanks everyone for all the input... We're doing another test today at 4pm (EST) so I'll get more info and I'll try using different lmi-types. I seem to remember trying ansi, but I'll give it another go and I'll document all of the show frame map/pvc/etc in case it doesn't work again. Am I correct in assuming that the LMI is set only at the interface level and the subinterfaces will get it from the interface? > Bob,, > > > You need to verify the LMI on the Canadian end...Cisco uses Strata > (surprise) and Bell Canada uses Ansi or Annex A or Ddepends on where > you are...I use to manage a network with several sites in the northland and > we ran into this consistently. You can have different types of LMI in your > network and it runs fine. > > Terry Vore > > > > > > > > > > > > > > > > > > > > > > > > At 11:22 AM 1/17/2002 -0500, you wrote: > >[EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32366&t=32307 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN's [7:32351]
thanks sam but this doesn't let you do it unless ISL is implemented ... this is a tough one plus there is not vlan database with this version of IOS it's 12.07 .. any other ideas?? sam sneed wrote: > > I have the same switch but haven't VLAN'd it yet. I will soon. > This document > has great examples and should be what you need to get the idea > and set it > up. > > http://www.cisco.com/warp/public/473/29.html > > "" 416South"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Have a 2948GL 3 and want to set up a vlan but it docs state > that you have > to > > set up ISL . I don't want ISL enabled. is there a way to > just create > VLANS > > like in other L3 switches? I don't want to make these > routeable or > anything > > just L2 VLANS simple VLANS > > > > ie. when I do a "int vlan 400" this would normally create a > new vlan and > put > > me into interface mode > > > > when i do a "int vlan ?" the options are to put in the vlan > # but when I > do > > all i get is a wrong command with the famous ^ at the vlan > point in the > > command > > > > docs doc's dont seem to give enough info > > > > any Ideas > > > > thanks > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32365&t=32351 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Loopback IP masking - 32 or 24 bits? or? [7:32345]
I've seen ISP's assign /24's and /25's to loopbacks on dial boxes in order to get the dial pools into the IGP. This is versus static routing them and pushing them into the IGP via redistribution (into NSSA OSPF or ISIS areas). I'm not pro either approach and prefer direct injects to BGP, but I've seen it and it does work. Keep in mind in ospf, you must set the network type to point-to-point (and have an IOS that lets you do that) Pete At 03:51 PM 1/17/2002 -0500, Chuck Larrieu wrote: >outside of lab exercises, one might consider using /24's or other full >subnets for purposes of NAT pool addresses. > >that's about all I can think of. > >Chuck > >""Walker, Jim"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Your friend is right. Why would you use anything other than a /32 bit mask > > on a virtual interface? > > You are not going to route using the loopback address are you? > > > > > > > > Jim Walker > > Master Network Engineer > > Partners HealthCare System, Inc. > > Information Systems / Technical Services & Operations > > Tel. (617) 732-8803 > > Fax (617) 264-5130 > > This e-mail message and any attachments are confidential and may be > > privileged. If you are not the intended recipient, please notify me > > immediately by replying to this message and please destroy all copies of > > this message and attachments. Thank you. > > > > > > > > -Original Message- > > From: Joshua Dughi [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, January 17, 2002 3:23 PM > > To: [EMAIL PROTECTED] > > Subject: Loopback IP masking - 32 or 24 bits? or? [7:32345] > > > > > > Hi, all; > > > > I recently started considering why I might want to have a 32-bit mask > > for my loopbacks as opposed to some other scheme - for instance using > > the regularly documented 24-bit mask on a loopback. > > > > I am speaking of course, of: Interface Loopback0 > > IP Address 10.0.0.1 > > 255.255.255.0 > > > > versus approaching this matter in this fashion: > > > > Interface Loopback0 > > IP Address 10.0.0.1 > > 255.255.255.255 > > > > So, my questions are: 1) > > Has any one here seen a detailed discussion of this matter? > > Can you provide me a link to it? > > > >2) Based on what a friend of mine feels, his view is that there > > is never any benefit to having a 24-bit, or 28, or 29-bit mask on a > > loopback. In his view, loopbacks will always need to be, very logically, > > used with 32-bit masks. > > > > Can anyone please shed some light on this matter? > > > > Thank you. > > > > Joshua Dughi Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32367&t=32345 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ip verify unicast source reachable-via any allow-self-ping [7:32368]
Hello, Does anyone know exactly what this command does: # # ip verify unicast source reachable-via any allow-self-ping 108 # It has by some strange reason popped up(??) on some of our routers and we are debating as to how it got there. Doing some research on CCO, I am under the impression that this command prevents DOS attacks(I cannot explain clearly in layman terms though) and has been configured by someone(explainable by the reference to ACL 108) while some of my peers think that it gets put in automatically when the microcode on these 12000GSR's are upgraded? What's happenening is that when we loop up the channelized T3 ports locally, we can ping the local interfaces sometimes and sometimes it does not work(channelized ports on the same card!) Anyone can explain this? Thank you. Regards. _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32368&t=32368 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
