Mixing IOS versions in CCNP Lab, Kosher or Not?
Hello All, I just started doing CCNP labs at home and am having some problems getting BGP to work correctly. My home lab consists of 2 Cisco 3000 series routers with v12.0 IOS, two 2501's (borrowed) with version 11.0, and one Cisco Access Pro router card with version 11.3. My question is could the mix and match nature of the different IOS's in my home lab cause problems with BGP syncing up correctly? For instance, in one lab I did with 3 routers, all the routers "found" each others routes via BGP but I could not ping end to end thru the middle router. In other words if the routes are seen in the routing table, why can't I ping? Yes I checked clocking and the ports are all up & up. Or what's going on if routes don't show up and I've correctly followed the instructions for entering the neighbor and network statements? I can ping from point to point. BTW, the labs I'm doing are from The Cisco Networking Academy Level 5 Chapter 8. Is it just me messing up somewhere, or should I get all the routers talking the same IOS? Problem is, I don't have a login at Cisco's web site that will enable me to download an IOS image. Suggestions anyone? Thanks for your time and input. Happy New Year! Henry Guzman _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OSPF summary problem!
hi Greg; thx for your help , but i guess the problem is something else , the OSPF domain is supposed to send a route to the IGRP with 24 bit mask , which never happened the route exits in the OSPF as 28 bit mask subnet , so it is natural that it will not be propagated to the IGRP domain unless I summarize at the 24 bit . i did already this summarization , i tried area range command to summarize from area 0 to the others , i tried aslo the summary-address at the ASBR router , still the route didnt propagate ...and the weired part is there is another subnet in the OSPF domain which is 26 bit ,i summarized it and it propagate naturally to the IGRP . anyone has any comment?? thx > -Original Message- > From: Schmitt, Greg [SMTP:[EMAIL PROTECTED]] > Sent: Saturday, December 30, 2000 1:14 PM > To: 'Mohamed Heeba' > Subject: RE: OSPF summary problem! > > Hi Mohamed, > > On way around the variable length versus fixed length redistribution > problem with igrp is through the use of the 'ip > default-network' command. > > In your case, look at the routing table on r5, and find a classful route > that is being redistributed into igrp on r4. That > is, a route in the routing table that is defined at the default boundary > (e.g. 137.225.0.0). Once you've found that route > (you may have to create something on routers r1, r2, or r3) type the ip > default-route xxx.xxx.xxx.xxx command on r5 > (replacing the xxx's with the actual route). > > This acts like a static route, but (may) gets you around the "can't use > any static routes" restriction. > > Hope this helps! > > Happy New Year! > > Greg > > Greg Schmitt > > Internetwork Solutions Engineer > ThruPoint, Inc. (formerly Total Network Solutions) > Voice: 410-349-9772 > Cell: 443-822-5183 > Pager: 888-773-0423 or [EMAIL PROTECTED] > e-mail: [EMAIL PROTECTED] > > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Mohamed Heeba > Sent: Friday, December 29, 2000 1:30 PM > To: '[EMAIL PROTECTED]' > Cc: '[EMAIL PROTECTED]' > Subject: OSPF summary problem! > > > i was trying the Fatkid 501 redistribution lab when i got this problem > > the lab is 5 routers , 3 of them (R1,R2,R3) are in area 0 over Frame > relay > with a subnet of 28 bit mask > one of this routers ( R3) are connected to another router ( R4) forming > area > 3 on the link between them , and another area on its loopback interface > (area 2 ) > > now R4 is connected to another router (R5) and the link between them is > running IGRP with subnet of mask 24 ...i hope this is clear to you > > the problem is > i have formed a virtual link between R4 and R3 and things looked fine to > me > BUT when i redistribute the OSPF to the IGRP , the 28 bit subnet never > appeared to R5 > i summarized the network , trying the AREA range command at R3 , then at > R4 > i tried also the summary-address at R4but the subnet never appeared > in > R5 > although some other networks ( of 26 bit masks) appreared fine when i > summarized them at 24 bit boundry > can anyone knows where is the problem ?? > > > NOTE:when i configured the frame relay interfaces as point-to-mulitpoint , > only the 32 address appreared in the routing tables , when i changed the > network type to broadcast type , the 28 bit subnet appeared ..but still it > didnt go to the far IGRP router ... > wat is the problem > > > > Mohamed HEEBA > > > > > > > ___ > To unsubscribe from the CCIELAB list, send a message to > [EMAIL PROTECTED] with the body containing: > unsubscribe ccielab _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
V.11, X.21, and RS232 are =
Guys, are the V.11, X.21 and the RS232 are the same interface. Thanks ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Help Required - Desperately
Hi all, I am badly in need of help from you Cisco gurus. We have a 2522 Router which was bought around 1996/1997. It doesnt boot now. The console screenshot is shown below. System Bootstrap, Version 11.0(10c), SOFTWARE Copyright (c) 1986-1996 by cisco Systems 2500 processor with 8192 Kbytes of main memory Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 170 West Tasman Drive San Jose, California 95134-1706 Cisco Internetwork Operating System Software IOS (tm) 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1) Copyright (c) 1986-1996 by cisco Systems, Inc. Compiled Fri 27-Dec-96 17:33 by loreilly Image text-base: 0x0101, data-base: 0x1000 Local Timeout (control reg=0x118) Error, address: 0x2101884 at 0x1076504 (PC) --- I have tried to enter the ROM Monitor prompt and tried to set the config register as to boot from ROM and enter setup mode. But Neither does it enter the setup mode nor does it come up to the router promt. The above screen repeats itself. Can anyone infer what is the problem with the router. Also please tell me what I can do to get the router prompt. Thanks in advance. S.Kalidasan http://mail.indiainfo.com First you had 10MB of free mail space. Now you can send mails in your own language !!! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Hyperterminal
If you're trapped within a microsoft platform, the minimium enhancement you should consider is the free upgrade from http://www.hilgraeve.com, although i'm more than willing to allow that other alternatives might in fact be far superior. "Gary Joyce" <[EMAIL PROTECTED]>@groupstudy.com on 12/31/2000 12:55:03 AM Please respond to "Gary Joyce" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> cc:(bcc: Kevin Cullimore) Subject: RE: Hyperterminal I've also had problems with Hyperterminal. Try TeraTerm Pro, it's freeware and even has an SSH plug-in. You can get it here: http://hp.vector.co.jp/authors/VA002416/teraterm.html This is the first app to go on any PC I use. You can Telnet, SSH, and console all from the same program. Gary -Original Message- From: Lauren Child [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 9:16 PM To: [EMAIL PROTECTED] Subject: Re: Hyperterminal Austin wrote: > > All of a sudden, the router will not accept me hitting the ENTER key to get > started. Same thing happens on a break sequence. I cannot seem to send > anything to the terminal. > This is how far it goes and then nothing: > I had the same problem with a 2501 this christmas - I was selling it and another to a chap at home, one was fine and the other wouldnt accept any input except a break at bootup. Then it was just frozen. After fiddling with cables, taking the lid off the router and wiggling simms in case theyd come loose, rebooting several times, and taking mem and flash out to force a boot to rom, we switched the cable on to my laptop (it was connected to my brothers PC) and it worked fine. The only difference was - 1) my brothers PC was having problems with an AGP graphics card at the time, and my laptop wasnt, and 2) My brothers PC was win98, mine was win98SE I have no idea what went on, and why it only affected one router and not the other (which is why we figured corrupt ios or something). Have you tried a different PC/OS? TTFN Lauren _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] +-+ | This message may contain confidential and/or privileged | | information. If you are not the addressee or authorized to | | receive this for the addressee, you must not use, copy, | | disclose or take any action based on this message or any| | information herein. If you have received this message in | | error, please advise the sender immediately by reply e-mail | | and delete this message. Thank you for your cooperation. | +-+ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Help Required - Desperately
Hi all, I am badly in need of help from you Cisco gurus. We have a 2522 Router which was bought around 1996/1997. It doesnt boot now. The console screenshot is shown below. System Bootstrap, Version 11.0(10c), SOFTWARE Copyright (c) 1986-1996 by cisco Systems 2500 processor with 8192 Kbytes of main memory Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 170 West Tasman Drive San Jose, California 95134-1706 Cisco Internetwork Operating System Software IOS (tm) 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1) Copyright (c) 1986-1996 by cisco Systems, Inc. Compiled Fri 27-Dec-96 17:33 by loreilly Image text-base: 0x0101, data-base: 0x1000 Local Timeout (control reg=0x118) Error, address: 0x2101884 at 0x1076504 (PC) --- I have tried to enter the ROM Monitor prompt and tried to set the config register as to boot from ROM and enter setup mode. But Neither does it enter the setup mode nor does it come up to the router promt. The above screen repeats itself. Can anyone infer what is the problem with the router. Also please tell me what I can do to get the router prompt. Thanks in advance. S.Kalidasan _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Hyperterminal
I've also had problems with Hyperterminal. Try TeraTerm Pro, it's freeware and even has an SSH plug-in. You can get it here: http://hp.vector.co.jp/authors/VA002416/teraterm.html This is the first app to go on any PC I use. You can Telnet, SSH, and console all from the same program. Gary -Original Message- From: Lauren Child [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 9:16 PM To: [EMAIL PROTECTED] Subject: Re: Hyperterminal Austin wrote: > > All of a sudden, the router will not accept me hitting the ENTER key to get > started. Same thing happens on a break sequence. I cannot seem to send > anything to the terminal. > This is how far it goes and then nothing: > I had the same problem with a 2501 this christmas - I was selling it and another to a chap at home, one was fine and the other wouldnt accept any input except a break at bootup. Then it was just frozen. After fiddling with cables, taking the lid off the router and wiggling simms in case theyd come loose, rebooting several times, and taking mem and flash out to force a boot to rom, we switched the cable on to my laptop (it was connected to my brothers PC) and it worked fine. The only difference was - 1) my brothers PC was having problems with an AGP graphics card at the time, and my laptop wasnt, and 2) My brothers PC was win98, mine was win98SE I have no idea what went on, and why it only affected one router and not the other (which is why we figured corrupt ios or something). Have you tried a different PC/OS? TTFN Lauren _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Welcome to a new year
Actually a late Fridays funnies. (I'd like to dedicate this to my boyfriend, who is living proof that uncontrollable compulsive switching of TV channels with a remote control is a testosterone influenced condition.) Because I'm A Man.. When I lock my keys in the car I will fiddle with a wire clothes hanger and ignore your suggestions that we call a road service until long after hypothermia has set in and I have damaged the vehicle. -- Because I'm a man, When the car isn't running very well, I will pop the hood and stare at the engine as if I know what I'm looking at. If another man shows up one of us will say to the other, "I used to be able to fix these things, but now with all these computers and everything, I wouldn't know where to start." -- Because I'm a man, When I catch a cold I need someone to bring me soup and take care of me while I lie in bed and moan. You never get as sick as I do, so for you this isn't an issue. - Because I'm a man, I can be relied upon to purchase basic groceries at the store, like milk or bread. I cannot be expected to find exotic items like "Cumin" or "lady fingers." For all I know these could be the same thing. And never, under any circumstances, expect me to pick up anything for which "feminine hygiene product" is a euphemism. -- Because I'm a man, When one of our appliances stops working I will insist on taking it apart, despite evidence that this will just cost me twice as much once the repair person gets here and has to put it back together. -- Because I'm a man, I must hold the television remote control in my hand while I watch TV. If the thing has been misplaced, I may miss a whole show looking for it (though one time I was able to survive by holding a calculator). Because I'm a man, I don't think we're all that lost, and no, I don't think we should stop and ask someone. Why would you listen to a complete stranger? I mean, could he know where we're going? -- Because I'm a man, There is no need to ask me what I'm thinking about, especially while driving quietly. The answer is always either sex or football, though I have to make up something else when you ask, so don't. -- Because I'm a man, I do not want to visit your mother, or have your mother come visit us, or talk to her when she calls, or think about her any more than I have to. Whatever you got her for mother's day is okay, I don't need to see it. And don't forget to pick up something for my Mom, too! - Because I'm a man, You don't have to ask me if I liked the movie. Chances are, if you're crying at the end of it, I didn't. -- Because I'm a man, I think what you're wearing is fine. I thought what you were wearing five minutes ago was fine, too. Either pair of shoes is fine. With the belt or without it looks fine. Your hair is fine. You look fine. Because I'm a man, And this is, after all, the 90's, I will share equally in the housework. You just do the laundry, the cooking, gardening, the cleaning, and the dishes. I'll do all the rest. -- This has been a Public Service message for women, to better understand the male animal. -- Natasha Flazynski 440.949.1399 http://www.ciscobot.com My Cisco information site. http://www.botbuilders.com Artificial Intelligence and Linux development A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station... _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: NetBios forwarding (Addendum)
If you have decided to do it with these commands, do not forget the other UDP broadcasts which are automatically forwarded. Have you also considered putting permanent static routes in the workstation and server ?. Will the application allow this for communication ? If it does , you do not have to touch the router. Let us know how it turns out. example: ip helper address 10.2.2.2 no ip forward-protocol udp 69 !(this does not allow tftp broadcasts) Winston. -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 31, 2000 5:34 AM To: Trentj; [EMAIL PROTECTED] Subject: Re: NetBios forwarding (Addendum) You're right, I do need that in my config. I had it in the first post, but forgot to add it to the second one. These two lines should be in the second version: int s0 ip helper-address 10.2.2.2 int s1 ip helper-address 10.1.1.1 I think this would accomplish what I'm trying, but I'm wondering what any downsides might be and if there is a better way. > I've never used the "ip directed-broadcast" config to do what your trying to > do. You may need to use the "ip helper-address" config to forward your > netbios traffic. Check out the attached URL. Hope this helps. > > http://www.cisco.com/univercd/cc/td/doc/product/software/ssr83/rpc_r/48383.h > tm#xtocid670622 > > > "John Neiberger" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Okay, after a tad more research, I've come up with the following config, > > which corrects some mistakes and misunderstandings in my previous config. > > > > interface Serial0 > > ip address 10.1.1.254 255.255.255.0 > > ip directed-broadcast 101 > > ! > > interface Serial1 > > ip address 10.2.2.254 255.255.255.0 > > ip directed-broadcast 102 > > ! > > access-list 101 permit udp host 10.1.1.1 any eq netbios-ns > > access-list 101 permit udp host 10.1.1.1 any eq netbios-dgm > > access-list 102 permit udp host 10.2.2.2 any eq netbios-ns > > access-list 102 permit udp host 10.2.2.2 any eq netbios-dgm > > > > Now, from what I can tell, this will do what I'm attempting, but I'd still > > love to have your opinions because I have *zero* experience with netbios > or > > broadcast forwarding. I'd hate to break one thing while trying to fix > > another. (gee, I've never done that before!) > > > > Thanks again, > > John > > > > > We have some new software running on a single workstation that is > trying > > to > > > use netbios to communicate with a server on a different subnet. We do > > not > > > currently allow this type of forwarding, and I've never configured it > > > before. We'd like to limit netbios forwarding to just these two > > machines. > > > Here is my idea, let me know if this would be the way to do it. > > > > > > access-list 1 permit 10.1.1.1 (workstation) > > > access-list 2 permit 10.2.2.2 (server) > > > > > > ip forward-protocol udp 137 > > > ip forward-protocol udp 138 > > > ip forward-protocol udp 139 > > > > > > int fastethernet1/0 > > > ip add 10.1.1.254 255.255.255.0 > > > ip directed-broadcast 1 > > > ip helper-address 10.2.2.2 > > > > > > int fastethernet2/0 > > > ip add 10.2.2.254 255.255.255.0 > > > ip directed-broadcast 2 > > > ip helper-address 10.1.1.1 > > > > > > Would this do what I'm trying to accomplish? If not, please let me > know, > > or > > > if anyone has any tips for this sort of thing, I'd love to hear them. > > > > > > Thanks a million, as usual! > > > > > > John > > > > > > > > > > > > > > > > > > ___ > > > Send a cool gift with your E-Card > > > http://www.bluemountain.com/giftcenter/ > > > > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > > > ___ > > Send a cool gift with your E-Card > > http://www.bluemountain.com/giftcenter/ > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://ww
RE: NetBios forwarding (Addendum)
Hello John, Here is my opinion. Temporarily, take the software or the workstation to the same subnet of the Server and see if it runs OK. While it is there, you can capture a few packets to see the conversations and the ports that are being utilized. This gives you a pretty good idea of the goal. If that is inconvenient, then do a ip forward-protocol any-local-broadcast very temporarily. Contrary to popular belief, it should not kill your router unless it is already on the brink. Assuming that it is the Netbios ports(137,138,139), You might be better of using the ip helper-address command and the no ip helper-address command for the ports you do not want to be sent across the router. I think that there is a default of 7 UDP protocols which are automatically forwarded with this command. In your config below, I think it might work, but only 1 access-list would do the trick because the server should not do any broadcasting once it is contacted by the client. Of course, that depends on the application software. What is it called anyway ? Access-Lists are a necessary evil which should be avoided whenever possible. Personally, I think that less resources would be used to decide whether to drop or foward a broadcast than to compare it to an access list. Winston. -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 31, 2000 2:01 AM To: [EMAIL PROTECTED] Subject: Re: NetBios forwarding (Addendum) Okay, after a tad more research, I've come up with the following config, which corrects some mistakes and misunderstandings in my previous config. interface Serial0 ip address 10.1.1.254 255.255.255.0 ip directed-broadcast 101 ! interface Serial1 ip address 10.2.2.254 255.255.255.0 ip directed-broadcast 102 ! access-list 101 permit udp host 10.1.1.1 any eq netbios-ns access-list 101 permit udp host 10.1.1.1 any eq netbios-dgm access-list 102 permit udp host 10.2.2.2 any eq netbios-ns access-list 102 permit udp host 10.2.2.2 any eq netbios-dgm Now, from what I can tell, this will do what I'm attempting, but I'd still love to have your opinions because I have *zero* experience with netbios or broadcast forwarding. I'd hate to break one thing while trying to fix another. (gee, I've never done that before!) Thanks again, John > We have some new software running on a single workstation that is trying to > use netbios to communicate with a server on a different subnet. We do not > currently allow this type of forwarding, and I've never configured it > before. We'd like to limit netbios forwarding to just these two machines. > Here is my idea, let me know if this would be the way to do it. > > access-list 1 permit 10.1.1.1 (workstation) > access-list 2 permit 10.2.2.2 (server) > > ip forward-protocol udp 137 > ip forward-protocol udp 138 > ip forward-protocol udp 139 > > int fastethernet1/0 > ip add 10.1.1.254 255.255.255.0 > ip directed-broadcast 1 > ip helper-address 10.2.2.2 > > int fastethernet2/0 > ip add 10.2.2.254 255.255.255.0 > ip directed-broadcast 2 > ip helper-address 10.1.1.1 > > Would this do what I'm trying to accomplish? If not, please let me know, or > if anyone has any tips for this sort of thing, I'd love to hear them. > > Thanks a million, as usual! > > John > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CLNS
A number of Government agencies use clns to this day, it was supposed to be the replacement for IP (which was running out of addresses prior to cidr) and of course some branches of government adopted it - and now refuse to change. LAB -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jay Swan Sent: Saturday, December 30, 2000 8:18 PM To: [EMAIL PROTECTED] Subject: CLNS I was noticing the removal of CLNS from the CCIE lab requirements. While I've never personally seen a lot of the more obscure protocols "in the wild", I don't even know anyone who's seen a production CLNS network. Anybody out there seen one? Jay _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NetBios forwarding (Addendum)
You're right, I do need that in my config. I had it in the first post, but forgot to add it to the second one. These two lines should be in the second version: int s0 ip helper-address 10.2.2.2 int s1 ip helper-address 10.1.1.1 I think this would accomplish what I'm trying, but I'm wondering what any downsides might be and if there is a better way. > I've never used the "ip directed-broadcast" config to do what your trying to > do. You may need to use the "ip helper-address" config to forward your > netbios traffic. Check out the attached URL. Hope this helps. > > http://www.cisco.com/univercd/cc/td/doc/product/software/ssr83/rpc_r/48383.h > tm#xtocid670622 > > > "John Neiberger" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Okay, after a tad more research, I've come up with the following config, > > which corrects some mistakes and misunderstandings in my previous config. > > > > interface Serial0 > > ip address 10.1.1.254 255.255.255.0 > > ip directed-broadcast 101 > > ! > > interface Serial1 > > ip address 10.2.2.254 255.255.255.0 > > ip directed-broadcast 102 > > ! > > access-list 101 permit udp host 10.1.1.1 any eq netbios-ns > > access-list 101 permit udp host 10.1.1.1 any eq netbios-dgm > > access-list 102 permit udp host 10.2.2.2 any eq netbios-ns > > access-list 102 permit udp host 10.2.2.2 any eq netbios-dgm > > > > Now, from what I can tell, this will do what I'm attempting, but I'd still > > love to have your opinions because I have *zero* experience with netbios > or > > broadcast forwarding. I'd hate to break one thing while trying to fix > > another. (gee, I've never done that before!) > > > > Thanks again, > > John > > > > > We have some new software running on a single workstation that is > trying > > to > > > use netbios to communicate with a server on a different subnet. We do > > not > > > currently allow this type of forwarding, and I've never configured it > > > before. We'd like to limit netbios forwarding to just these two > > machines. > > > Here is my idea, let me know if this would be the way to do it. > > > > > > access-list 1 permit 10.1.1.1 (workstation) > > > access-list 2 permit 10.2.2.2 (server) > > > > > > ip forward-protocol udp 137 > > > ip forward-protocol udp 138 > > > ip forward-protocol udp 139 > > > > > > int fastethernet1/0 > > > ip add 10.1.1.254 255.255.255.0 > > > ip directed-broadcast 1 > > > ip helper-address 10.2.2.2 > > > > > > int fastethernet2/0 > > > ip add 10.2.2.254 255.255.255.0 > > > ip directed-broadcast 2 > > > ip helper-address 10.1.1.1 > > > > > > Would this do what I'm trying to accomplish? If not, please let me > know, > > or > > > if anyone has any tips for this sort of thing, I'd love to hear them. > > > > > > Thanks a million, as usual! > > > > > > John > > > > > > > > > > > > > > > > > > ___ > > > Send a cool gift with your E-Card > > > http://www.bluemountain.com/giftcenter/ > > > > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > > > ___ > > Send a cool gift with your E-Card > > http://www.bluemountain.com/giftcenter/ > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NetBios forwarding
NetBIOS runs on top of TCP/IP (NBT). If you have WINS server then it will not broadcast to find the server, unless there is no record in the WINS server. You could configure a LMHOSTS file on the workstation. This would have the servers NetBIOS name to IP address mapping. If you include the "#PRE" tag it will be loaded into the NetBIOS cache at boot time. I am not sure if this helps. Neil "John Neiberger" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > We have some new software running on a single workstation that is trying to > use netbios to communicate with a server on a different subnet. We do not > currently allow this type of forwarding, and I've never configured it > before. We'd like to limit netbios forwarding to just these two machines. > Here is my idea, let me know if this would be the way to do it. > > access-list 1 permit 10.1.1.1 (workstation) > access-list 2 permit 10.2.2.2 (server) > > ip forward-protocol udp 137 > ip forward-protocol udp 138 > ip forward-protocol udp 139 > > int fastethernet1/0 > ip add 10.1.1.254 255.255.255.0 > ip directed-broadcast 1 > ip helper-address 10.2.2.2 > > int fastethernet2/0 > ip add 10.2.2.254 255.255.255.0 > ip directed-broadcast 2 > ip helper-address 10.1.1.1 > > Would this do what I'm trying to accomplish? If not, please let me know, or > if anyone has any tips for this sort of thing, I'd love to hear them. > > Thanks a million, as usual! > > John > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: can SPAN port transmit?
I use a 2900XL with many span ports. I use one of them for an Internet monitoring software. It has the ability to monitor at 100Mbps full duplex and transmitt on that same port. I have a Sniffer Pro DSS and I am able to transmitt data on that span port also. Neil "Priscilla Oppenheimer" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi folks, > > If I connect a Sniffer-like device to the SPAN port of a switch, will the > Sniffer-like device be able to transmit data? > > My guess is no. From my reading on Cisco's SwitchProbe external hardware > probes, it appears that the SwitchProbe needs an additional port to send > data to a network management system. One port connects to a SPAN port on > the switch and the other port connects to a normal port and is configured > in "management mode." > > But, does anyone have experience with trying to send from a device > connected to a SPAN port? > > Thanks > > Priscilla > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: can SPAN port transmit?
It would be a pleasant surprise to me if the normal switched SPAN port captured all your LANE traffic. It is not supported because of the way the LECs talk to the LES and other LECs. BUS traffic you should see very easily in an ELAN. ELANs may appear to be similiar to Broadcast VLANS but they use a different mechanism(addressing, etc) to do the simulation. In other words, I do not think it is supported. Having said that, if you do find a way to capture this traffic, I hope that you will share it with us. There might be a vendor-specific way to do it. I love this ATM stuff, why did they remove it from the CCIE Lab exam ??? Winston. -Original Message- From: Lou Nelson [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 7:19 PM To: Nigel Taylor; Lou Nelson; [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla Oppenheimer Cc: Bryant Andrews Subject: RE: can SPAN port transmit? I do use intra-vlan routing in that a within the vlan is a gateway for that VLAN of course an arp (that I see) for the gateway occurs... then when traffic is sent to the vlans gateway to route to another vlan or anywhere... I do NOT see that As you said I would have to go to where the mapping occurs (a bunch of 7507s with AIPs)... I would find the HSRP active router... no problems... Still this does not give me what I was looking for... In Top Down Design (shameless Plug), a lot of discussion goes to knowing thyself and the traffic. What I wanted to see was the amount of traffic, type of traffic, broadcast versus standard on a given VLAN. First to baseline the VLAN, then to identify within my network where I may need additional improvements. We have some 16000 host and seem rock solid... We have way more bandwidth then needed but expect a huge amount of growth.. not in host but in applications... two of my 120+ work group managers constantly insist on infrastructure related problems... yet LMS and HP Open view show nothing. Each time they raise a stink, me or one of my technicians find not only nothing wrong, but often see no symptoms. Still these WGMs get managements ear. In all we have proven each and every time these guys are off their rockers but it did raise my desire to span the entire VLAN to Sniffer Pro and get some baselines of the VLANs traffic. I wanted to do this from my office simply by creating the LEC spanning the vlan ... and wham... In the end all I catch mostly is some CDP, HSRP, and other type broadcast Now spanning the port works exactly and accomplished everything I have wanted it to where I use it. I have been able to get profiles of our outbound and inbound data to our network. I have been able to show growth and get additional assets with empirical data... Anyway thanks Nigel... I keep looking for a way to capture ALL the data in a given VLAN... this kinda does make ya wish for a HUB mode.. not -Original Message- From: Nigel Taylor [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 5:25 AM To: Lou Nelson; [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla Oppenheimer Cc: Bryant Andrews Subject: Re: can SPAN port transmit? See Inline. - Original Message - From: Lou Nelson <[EMAIL PROTECTED]> To: Nigel Taylor <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; Priscilla Oppenheimer <[EMAIL PROTECTED]>; Lou Nelson <[EMAIL PROTECTED]> Cc: Bryant Andrews <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 3:13 AM Subject: RE: can SPAN port transmit? > hmmm. > I fully understand the Lane ATM Vlan Elan relationships. > What is happening is that I only see the broadcast on the specific Vlan. I > do not see the direct Vlan to Vlan traffic nor the Vlan to Vlan Gateway > address... NT: This won't happen unless you implement some type of inter-vlan routing in which case you're no longer monitoring at layer 2 which is where the span ports on the switched devices are suppose to monitor/capture. Of course to monitor different vlans you would have to redefine you SPAN port values if you were looking to still mointor on Layer 2 . However, To monitor the VLAN to VLAN or VLANto VLAn gateway traffic you would have to do this where your VLAN maps to layer 3, which would mean at either the RSM(where you would probably have your HSRP gateways defined) or at router with a AIP card that provides the layer 3 requirememt. I assumed that the trunked ports were not passing the traffic > out the lane blades because the Cam Dynamics recognized that the destination > MAC was not down that port (trunked port... therefore it dropped the frame > and my spanned port on the other side of the cloud never got the frame... > and yes everything else is in place... a lec is configured on my Spanned > port switch's lane blade... > > I clearly do not know what I am missing... I really feel I have covered > everything > > > -Original Message- > From: Nigel Taylor [mailto:[EMAIL PROTECTED]] > Sent: Saturday, December 30, 2000 1:54 AM > To: [EMAIL PROTECTED]; [E
Re: Hyperterminal
Austin wrote: > > All of a sudden, the router will not accept me hitting the ENTER key to get > started. Same thing happens on a break sequence. I cannot seem to send > anything to the terminal. > This is how far it goes and then nothing: > I had the same problem with a 2501 this christmas - I was selling it and another to a chap at home, one was fine and the other wouldnt accept any input except a break at bootup. Then it was just frozen. After fiddling with cables, taking the lid off the router and wiggling simms in case theyd come loose, rebooting several times, and taking mem and flash out to force a boot to rom, we switched the cable on to my laptop (it was connected to my brothers PC) and it worked fine. The only difference was - 1) my brothers PC was having problems with an AGP graphics card at the time, and my laptop wasnt, and 2) My brothers PC was win98, mine was win98SE I have no idea what went on, and why it only affected one router and not the other (which is why we figured corrupt ios or something). Have you tried a different PC/OS? TTFN Lauren _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NetBios forwarding (Addendum)
I've never used the "ip directed-broadcast" config to do what your trying to do. You may need to use the "ip helper-address" config to forward your netbios traffic. Check out the attached URL. Hope this helps. http://www.cisco.com/univercd/cc/td/doc/product/software/ssr83/rpc_r/48383.h tm#xtocid670622 "John Neiberger" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Okay, after a tad more research, I've come up with the following config, > which corrects some mistakes and misunderstandings in my previous config. > > interface Serial0 > ip address 10.1.1.254 255.255.255.0 > ip directed-broadcast 101 > ! > interface Serial1 > ip address 10.2.2.254 255.255.255.0 > ip directed-broadcast 102 > ! > access-list 101 permit udp host 10.1.1.1 any eq netbios-ns > access-list 101 permit udp host 10.1.1.1 any eq netbios-dgm > access-list 102 permit udp host 10.2.2.2 any eq netbios-ns > access-list 102 permit udp host 10.2.2.2 any eq netbios-dgm > > Now, from what I can tell, this will do what I'm attempting, but I'd still > love to have your opinions because I have *zero* experience with netbios or > broadcast forwarding. I'd hate to break one thing while trying to fix > another. (gee, I've never done that before!) > > Thanks again, > John > > > We have some new software running on a single workstation that is trying > to > > use netbios to communicate with a server on a different subnet. We do > not > > currently allow this type of forwarding, and I've never configured it > > before. We'd like to limit netbios forwarding to just these two > machines. > > Here is my idea, let me know if this would be the way to do it. > > > > access-list 1 permit 10.1.1.1 (workstation) > > access-list 2 permit 10.2.2.2 (server) > > > > ip forward-protocol udp 137 > > ip forward-protocol udp 138 > > ip forward-protocol udp 139 > > > > int fastethernet1/0 > > ip add 10.1.1.254 255.255.255.0 > > ip directed-broadcast 1 > > ip helper-address 10.2.2.2 > > > > int fastethernet2/0 > > ip add 10.2.2.254 255.255.255.0 > > ip directed-broadcast 2 > > ip helper-address 10.1.1.1 > > > > Would this do what I'm trying to accomplish? If not, please let me know, > or > > if anyone has any tips for this sort of thing, I'd love to hear them. > > > > Thanks a million, as usual! > > > > John > > > > > > > > > > > > ___ > > Send a cool gift with your E-Card > > http://www.bluemountain.com/giftcenter/ > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CLNS
I was noticing the removal of CLNS from the CCIE lab requirements. While I've never personally seen a lot of the more obscure protocols "in the wild", I don't even know anyone who's seen a production CLNS network. Anybody out there seen one? Jay _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ip route question
Lou, Nothing to say you can't have an Ethernet link that is in fact point-to-point. However, the router still needs a MAC address to get to the router on the opposite side, due to the frame structure of Ethernet. He will still need to ARP for a MAC address, and if there's no next-hop IP address specified in the IP route statement the only address the router can ARP for is the destination IP address in each packet forwarded. So your ARP cache will still fill up with redundant entries. It is always a design decision, but the art consists in understanding the impacts your decisions may have down the road. The least obvious impacts are the ones that are the most difficult to troubleshoot when things go very wrong. Understand that when the router uses up all its memory for ARP cache it spontaneously reboots. This can be an extremely disruptive event on a busy network, and most layer-three guys are not oriented toward checking the size of the ARP cache to troubleshoot what appears to be an IOS instability or maybe a hardware bug. Just a word to the wise. Pamela At 02:32 AM 12/30/00 -0600, Lou Nelson wrote: >Cory, >I read thru the responses and they are all good but I would like to >add... >Who is to say that an Ethernet interface is not a point to point. Using >media converters changing a FE interface from tx to fiber and then back >again I have many WAN FE point to point interfaces. >In a few cases I prefer the interface because it prevent routing loops when >links fail. I run HSRP on three gateway 7507s with gig uplinks to a 7513. >The 3 7507 are logically connected via ATM interfaces that also house the >HSRP. By using the interface to point out the gig links versus the opposite >end ip interface on the gig link I prevent on 7507 believing that sending >packets back to the originating router is a preferred EIGRP route to get to >the 7513. > > >So the Eth interface does not have to be a broadcast environment... it can >be a point to point! > >-Original Message- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of >Stull, Cory >Sent: Friday, December 29, 2000 11:31 AM >To: '[EMAIL PROTECTED]' >Subject: ip route question > > > >I know I'm showing my ignorance here but I'm tired of trying to find the >answer on CCO. Must be looking in the wrong places. > > >I just saw a Boson question asking about ip route 0.0.0.0 0.0.0.0 int >ethernet0 > > >I thought you could only point static routes like that out of point to point >interfaces? For example: ip route 0.0.0.0 0.0.0.0 int ser0 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NetBios forwarding (Addendum)
Okay, after a tad more research, I've come up with the following config, which corrects some mistakes and misunderstandings in my previous config. interface Serial0 ip address 10.1.1.254 255.255.255.0 ip directed-broadcast 101 ! interface Serial1 ip address 10.2.2.254 255.255.255.0 ip directed-broadcast 102 ! access-list 101 permit udp host 10.1.1.1 any eq netbios-ns access-list 101 permit udp host 10.1.1.1 any eq netbios-dgm access-list 102 permit udp host 10.2.2.2 any eq netbios-ns access-list 102 permit udp host 10.2.2.2 any eq netbios-dgm Now, from what I can tell, this will do what I'm attempting, but I'd still love to have your opinions because I have *zero* experience with netbios or broadcast forwarding. I'd hate to break one thing while trying to fix another. (gee, I've never done that before!) Thanks again, John > We have some new software running on a single workstation that is trying to > use netbios to communicate with a server on a different subnet. We do not > currently allow this type of forwarding, and I've never configured it > before. We'd like to limit netbios forwarding to just these two machines. > Here is my idea, let me know if this would be the way to do it. > > access-list 1 permit 10.1.1.1 (workstation) > access-list 2 permit 10.2.2.2 (server) > > ip forward-protocol udp 137 > ip forward-protocol udp 138 > ip forward-protocol udp 139 > > int fastethernet1/0 > ip add 10.1.1.254 255.255.255.0 > ip directed-broadcast 1 > ip helper-address 10.2.2.2 > > int fastethernet2/0 > ip add 10.2.2.254 255.255.255.0 > ip directed-broadcast 2 > ip helper-address 10.1.1.1 > > Would this do what I'm trying to accomplish? If not, please let me know, or > if anyone has any tips for this sort of thing, I'd love to hear them. > > Thanks a million, as usual! > > John > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
NetBios forwarding
We have some new software running on a single workstation that is trying to use netbios to communicate with a server on a different subnet. We do not currently allow this type of forwarding, and I've never configured it before. We'd like to limit netbios forwarding to just these two machines. Here is my idea, let me know if this would be the way to do it. access-list 1 permit 10.1.1.1 (workstation) access-list 2 permit 10.2.2.2 (server) ip forward-protocol udp 137 ip forward-protocol udp 138 ip forward-protocol udp 139 int fastethernet1/0 ip add 10.1.1.254 255.255.255.0 ip directed-broadcast 1 ip helper-address 10.2.2.2 int fastethernet2/0 ip add 10.2.2.254 255.255.255.0 ip directed-broadcast 2 ip helper-address 10.1.1.1 Would this do what I'm trying to accomplish? If not, please let me know, or if anyone has any tips for this sort of thing, I'd love to hear them. Thanks a million, as usual! John ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco's TFTP Program
Jennifer, The best program that I have used for a Windows box is TFTPPro by Walusoft. The only drawback is that it costs $99 but well worth the cost. http://www.tftp.co.uk/ -Evan You -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jennifer Mellone Sent: Friday, December 29, 2000 7:45 PM To: [EMAIL PROTECTED] Subject:Cisco's TFTP Program Hi Gang, Is it me, or has anyone else had this problem using the Cisco TFTP program--- I TFTPed software from my laptop to a switch just fine today. But then I tried to TFTP IOS code from my laptop to a router today. I got an error message (from the TFTP program itself), and the program immediately closed down. I even rebooted the laptop and this did not help. - Jennifer Mellone _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Hyperterminal
Try a different console cable with the router or try a different router with the same cable. You may have the wrong pin outs on the console cable. Also check the Cabling Guide for RJ-45 Console and AUX Ports(Cisco's 1000 series, 2500 series, and AS5100) at http://www.cisco.com/warp/public/701/14.html I hope this helps Lawrrence Osei-Kwaku London UK --- Austin <[EMAIL PROTECTED]> wrote: > All of a sudden, the router will not accept me > hitting the ENTER key to get > started. Same thing happens on a break sequence. I > cannot seem to send > anything to the terminal. > This is how far it goes and then nothing: > > Cisco Internetwork Operating System Software > IOS (tm) 3000 Software (IGS-I-L), Version 11.0(22), > RELEASE SOFTWARE (fc1) > Copyright (c) 1986-1998 by cisco Systems, Inc. > Compiled Tue 08-Dec-98 05:20 by jaturner > Image text-base: 0x0301E7AC, data-base: 0x1000 > > cisco 2511 (68030) processor (revision C) with > 16384K/2048K bytes of memory. > Processor board ID 01736515, with hardware revision > > Bridging software. > X.25 software, Version 2.0, NET2, BFE and GOSIP > compliant. > 1 Ethernet/IEEE 802.3 interface. > 2 Serial network interfaces. > 16 terminal lines. > 32K bytes of non-volatile configuration memory. > 4096K bytes of processor board System flash (Read > ONLY) > > > > Press RETURN to get started! > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > = "Wear a smile and have friends; wear a scowl and have wrinkles." - George Eliot "the greatest glory is not in never falling, but rising up each time we fall." "The greatest man is not he who does not fall but he who falls and rises again to win" __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
E-books
Hello everybody. I am looking for Sybex CCNP 2.0 E-books. If anybody is interested to sell / trade these books than please contact me confidentially at [EMAIL PROTECTED] Thanks Iyuri Yagami Get free email and a permanent address at http://www.netaddress.com/?N=1 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
O/T Anyone familiar with the CLEC application
Totally off the topic, but I have an opportunity to purchase a Copper = mountain DSLAM, live in a relatively small suburb of DC, & have DSL/ATM = experience. Any experience is applying for CLEC privileges (I fairly up = to speed with the ILEC & ISP dealings :-( Thanks=20 Phil _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco's TFTP Program
I find if the "Root Directory" is buried, that a shorter path solves all. On my laptop, I usually send the IOS to the windows TEMP file. I may not be smart enough to explain why this works, but it keeps the TFTP Server from timing out when going for the IOS All the best !!! Phil - Original Message - From: "Kelly D Griffin" <[EMAIL PROTECTED]> To: "Jennifer Mellone" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 4:29 PM Subject: Re: Cisco's TFTP Program > I just used the program to load some IOS on several routers from my Dell > laptop and all went fine. > > Kelly D Griffin, CCNA > Network Engineer > Kg2 Network Design > http://www.kg2.com > > > - Original Message - > From: "Jennifer Mellone" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, December 29, 2000 6:45 PM > Subject: Cisco's TFTP Program > > > > Hi Gang, > > > > Is it me, or has anyone else had this problem using the Cisco TFTP > > program--- > > > > I TFTPed software from my laptop to a switch just fine today. > > > > But then I tried to TFTP IOS code from my laptop to a router today. I got > > an error message (from the TFTP program itself), and the program > immediately > > closed down. I even rebooted the laptop and this did not help. > > > > - Jennifer Mellone > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > http://1cis.com > Free E-mail Servers with unlimited mailboxes > 1st Class Internet Solutions > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NAP peering media
>Dan West <[EMAIL PROTECTED] wrote, > >Just wondering how those NAP xchange points are >connected physically. VIA > >GIG ETHER? >100Mb Fast Ether? >ATM PVCs? Things are in transition. I'd guess that the largest number of ports today are FE with a good deal of transition to GE. There are operational inter-NAP links at 10GE. ATM is still definitely present. Remember that not all NAPs are in one room, but are physically distributed. ATM is natural for those, although metro optical Ethernet will be more and more common. FDDI has been used historically but are fading out. > >Basically, switched and not routed right? I am trying >to learn about MPLS also. Anyways Switched, in a very restricted way -- for example, at the last NANOG, Paul Vixie (PAIX/MFN) issued a plea for vendors to make switches available that did NOT run spanning tree or many of the other features enterprises crave. In the NAP context, VLANs are basically a simple multiplexing technique. Not sure I'd immediately associate MPLS with the NAP environment. Contrary to urban legend, most tier 1 and tier 2 providers do not interconnect in NAP fabrics, but via private peering. Since one of the values of MPLS is using it for traffic engineering and SLA enforcement, I'd hesitate running it through the relative chaos of a public NAP. The whole NAP definition is blurring as hosting centers get more NAP-like. As far as routing vs. switching, the early NAPs switched in the data plane but peered to a route server to reduce the number of BGP peers. There's been a trend toward direct peering, although the route server peerings are retained for statistics collection. > >Anybody in this group actually working at a MAJOR >peer? Well-- I build things for them. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Hyperterminal
First, have you ever been able to connect to any router using the same PC and Hyperterminal? 1) Some versions of Hyperterminal won't send a break sequence. Go to Hilgraeve.com and download a better version. 2) Not being able to send an "enter". Check your serial cable. I have a DB-9 to RJ-45 adapter from Cisco that won't transmit. You may have received a similar "gift". If your PC, cable, and Hyperterminal works on other routers then suspect the router. > -Original Message- > From: Austin [mailto:[EMAIL PROTECTED]] > Sent: Saturday, December 30, 2000 12:33 PM > To: [EMAIL PROTECTED] > Subject: Hyperterminal > > > All of a sudden, the router will not accept me hitting the > ENTER key to get > started. Same thing happens on a break sequence. I cannot seem to send > anything to the terminal. > This is how far it goes and then nothing: > > Cisco Internetwork Operating System Software > IOS (tm) 3000 Software (IGS-I-L), Version 11.0(22), RELEASE > SOFTWARE (fc1) > Copyright (c) 1986-1998 by cisco Systems, Inc. > Compiled Tue 08-Dec-98 05:20 by jaturner > Image text-base: 0x0301E7AC, data-base: 0x1000 > > cisco 2511 (68030) processor (revision C) with 16384K/2048K > bytes of memory. > Processor board ID 01736515, with hardware revision > Bridging software. > X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. > 1 Ethernet/IEEE 802.3 interface. > 2 Serial network interfaces. > 16 terminal lines. > 32K bytes of non-volatile configuration memory. > 4096K bytes of processor board System flash (Read ONLY) > > > > Press RETURN to get started! > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
testing -- please ignore
Get ThinkLink! Your All-In-One Communications Center. Free Voicemail, Email and 5¢ a minute calling - anytime, anywhere. http://www.thinklink.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco Certification Digest V2 #912
I will be on vacation until January 8 and out of pager and cell phone range. For all network related issues please contact our Network Operations Center at 800-610-4684. Dan Keller _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
NAP peering media
Hey Gang, Just wondering how those NAP xchange points are connected physically. VIA GIG ETHER? 100Mb Fast Ether? ATM PVCs? Basically, switched and not routed right? I am trying to learn about MPLS also. Anyways Anybody in this group actually working at a MAJOR peer? Happy Holidays my fellow Cisco Nuts! = Dan West -- CCNA, CCNP (in progress) __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco's TFTP Program
I just used the program to load some IOS on several routers from my Dell laptop and all went fine. Kelly D Griffin, CCNA Network Engineer Kg2 Network Design http://www.kg2.com - Original Message - From: "Jennifer Mellone" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 29, 2000 6:45 PM Subject: Cisco's TFTP Program > Hi Gang, > > Is it me, or has anyone else had this problem using the Cisco TFTP > program--- > > I TFTPed software from my laptop to a switch just fine today. > > But then I tried to TFTP IOS code from my laptop to a router today. I got > an error message (from the TFTP program itself), and the program immediately > closed down. I even rebooted the laptop and this did not help. > > - Jennifer Mellone > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] http://1cis.com Free E-mail Servers with unlimited mailboxes 1st Class Internet Solutions _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Hyperterminal
All of a sudden, the router will not accept me hitting the ENTER key to get started. Same thing happens on a break sequence. I cannot seem to send anything to the terminal. This is how far it goes and then nothing: Cisco Internetwork Operating System Software IOS (tm) 3000 Software (IGS-I-L), Version 11.0(22), RELEASE SOFTWARE (fc1) Copyright (c) 1986-1998 by cisco Systems, Inc. Compiled Tue 08-Dec-98 05:20 by jaturner Image text-base: 0x0301E7AC, data-base: 0x1000 cisco 2511 (68030) processor (revision C) with 16384K/2048K bytes of memory. Processor board ID 01736515, with hardware revision Bridging software. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. 1 Ethernet/IEEE 802.3 interface. 2 Serial network interfaces. 16 terminal lines. 32K bytes of non-volatile configuration memory. 4096K bytes of processor board System flash (Read ONLY) Press RETURN to get started! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: can SPAN port transmit?
I do use intra-vlan routing in that a within the vlan is a gateway for that VLAN of course an arp (that I see) for the gateway occurs... then when traffic is sent to the vlans gateway to route to another vlan or anywhere... I do NOT see that As you said I would have to go to where the mapping occurs (a bunch of 7507s with AIPs)... I would find the HSRP active router... no problems... Still this does not give me what I was looking for... In Top Down Design (shameless Plug), a lot of discussion goes to knowing thyself and the traffic. What I wanted to see was the amount of traffic, type of traffic, broadcast versus standard on a given VLAN. First to baseline the VLAN, then to identify within my network where I may need additional improvements. We have some 16000 host and seem rock solid... We have way more bandwidth then needed but expect a huge amount of growth.. not in host but in applications... two of my 120+ work group managers constantly insist on infrastructure related problems... yet LMS and HP Open view show nothing. Each time they raise a stink, me or one of my technicians find not only nothing wrong, but often see no symptoms. Still these WGMs get managements ear. In all we have proven each and every time these guys are off their rockers but it did raise my desire to span the entire VLAN to Sniffer Pro and get some baselines of the VLANs traffic. I wanted to do this from my office simply by creating the LEC spanning the vlan ... and wham... In the end all I catch mostly is some CDP, HSRP, and other type broadcast Now spanning the port works exactly and accomplished everything I have wanted it to where I use it. I have been able to get profiles of our outbound and inbound data to our network. I have been able to show growth and get additional assets with empirical data... Anyway thanks Nigel... I keep looking for a way to capture ALL the data in a given VLAN... this kinda does make ya wish for a HUB mode.. not -Original Message- From: Nigel Taylor [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 5:25 AM To: Lou Nelson; [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla Oppenheimer Cc: Bryant Andrews Subject: Re: can SPAN port transmit? See Inline. - Original Message - From: Lou Nelson <[EMAIL PROTECTED]> To: Nigel Taylor <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; Priscilla Oppenheimer <[EMAIL PROTECTED]>; Lou Nelson <[EMAIL PROTECTED]> Cc: Bryant Andrews <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 3:13 AM Subject: RE: can SPAN port transmit? > hmmm. > I fully understand the Lane ATM Vlan Elan relationships. > What is happening is that I only see the broadcast on the specific Vlan. I > do not see the direct Vlan to Vlan traffic nor the Vlan to Vlan Gateway > address... NT: This won't happen unless you implement some type of inter-vlan routing in which case you're no longer monitoring at layer 2 which is where the span ports on the switched devices are suppose to monitor/capture. Of course to monitor different vlans you would have to redefine you SPAN port values if you were looking to still mointor on Layer 2 . However, To monitor the VLAN to VLAN or VLANto VLAn gateway traffic you would have to do this where your VLAN maps to layer 3, which would mean at either the RSM(where you would probably have your HSRP gateways defined) or at router with a AIP card that provides the layer 3 requirememt. I assumed that the trunked ports were not passing the traffic > out the lane blades because the Cam Dynamics recognized that the destination > MAC was not down that port (trunked port... therefore it dropped the frame > and my spanned port on the other side of the cloud never got the frame... > and yes everything else is in place... a lec is configured on my Spanned > port switch's lane blade... > > I clearly do not know what I am missing... I really feel I have covered > everything > > > -Original Message- > From: Nigel Taylor [mailto:[EMAIL PROTECTED]] > Sent: Saturday, December 30, 2000 1:54 AM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla > Oppenheimer; Lou Nelson > Cc: Bryant Andrews > Subject: Re: can SPAN port transmit? > > > Lou, > The answer is yes. I must be more specific in stating that since > LANE extends layer 2 characteristics through the ATM cloud. ELANs are > simply a way of extending a VLAN(lan segment/broadcast domain). > So plugging a sniffer onto a span port that is configured to a specific VLAN > which is mapped to a possible specific ELAN you should be able to capture > all/any traffic within the E-LAN(Extended-VLAN). > > What you're seeing would tend to suggest a incorrectly SPAN port. > > HTH > > Nigel > > - Original Message - > From: Lou Nelson <[EMAIL PROTECTED]> > To: Priscilla Oppenheimer <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Saturday, December 30, 2000 12:02 AM > Subject: RE: can SPAN port transmit? > > > > The answer is
Passed Switching 2.0
I passed my switching 2.0 test yesterday, I was very pleased with the = results. I did poorly exactly where I expected to do poorly, ip = multicasting. My final score was 867/1000. In studying for the BCMSN I = was able to rely heavily on the cisco press book and some on the job = training. I also studied the sybex training guide because I dont like = to rely on just one source of information. Now I need to move on to the BCRAN or BSCN. I may not post to this list = too often, but I do read the posts and find the information very = helpful. Thanks goes out to everyone who helps answer questions on this = list. -- Kevin _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ccie questions
Looking over my own printout, I see that there is no listing of the number of questions in each category. Just the percent correct. If I were to guess, based on my percentages and the fact that I passed with plenty of room to spare, I would guess that there are 1 or 2 multiservice questions, and 3 security questions tops. Your mileage may vary. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of umerkhan Sent: Saturday, December 30, 2000 8:59 AM To: [EMAIL PROTECTED] Subject:ccie questions can any one tell me how many questions come from security and = multiservice in the r/s written paper. and would the articles available at the following site be sufficient.=20 Internetworking Technologies Overview = (http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/index.htm) thanx _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VoIP Lab
It really depends on what you want to do. Using an ICS7750 sounds like you want to do something more like IP Telephony. So in addition to the server and a switch, you'll have to use get a handful of Cisco IP phones, not your typical office phone. If you're just interested in voice over IP, you can use a couple of routers with FXS cards (1700s work well for this). These will accept your standard analog phones and provide dialtone. Set the routers up back to back and make calls over your little mock-up wan. Tommy > jim klane <[EMAIL PROTECTED]> wrote: > Could someone tell me what is needed to use cisco's voice over ip . > I would like to connect 5 phones in my office but i can not seem to find the > necessary info to help me choose the components , > I figure i should need > 1 cisco ics7750 > 1 catalyst switch _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ccie questions
can any one tell me how many questions come from security and = multiservice in the r/s written paper. and would the articles available at the following site be sufficient.=20 Internetworking Technologies Overview = (http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/index.htm) thanx _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Product images
you have to purchase the visio enterprise version in order to get the cisco product icons... ""Steven Crawford"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello All, > > Does Cisco have a location on their site where they keep image files of > their products? The Visio files at > http://www.cisco.com/warp/customer/503/2.html are good, but I would like > actual pictures of the products to make network diagrams with. > > Does such a database exist?? > > Thanks. > > Steven Crawford BA MCSE CCDA CCNP A+ > > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BGP Route Servers
Topic came up on the NANOG list yesterday - apparently the cerf.net public route server was down and someone asked for alternatives. So, for all you BGP fans who want to know how many routes are in the "internet routing table" here are a number of places you can check. Note that there is no one number. it seems to depend upon your point of view. route-server.ip.att.net route-views.oregon-ix.net ner-routes.bbnplanet.net route-server-eu.exodus.net route-server.as5388.net route-server.cerf.net route-server.exodus.net route-server.gblx.net www.traceroute.org this last one is pretty interesting. Might want to bookmark it. Chuck -- I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as it has been is over ( if you hope to pass ) From this time forward, you will study US! ( apologies to the folks at Star Trek TNG ) _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
about connect the ISP
Hi guys: We are a small ISP, just using static routing connect the mother ISP, the mother ISP assign a class C address to us, I want to know how the mother ISP locate the Class c networking , just using static routing? Need they redistribute the static to their dynamic routing (for example OSPF) in order to the internet router know the class c network,? Did the mother ISP create the stub area, then assign the lots of ip address to stub area ,if so how to create the stub area by static routing? Anyone can give me some configuration, Thanks in advice gary __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco's TFTP Program
I run W2K professional "workstation" and use it very frequently. I have not had one problem with it yet. regards, Steve -Original Message- From: suaveguru [mailto:[EMAIL PROTECTED]] Sent: Friday, December 29, 2000 8:22 PM To: Jennifer Mellone; [EMAIL PROTECTED] Subject: Re: Cisco's TFTP Program hi, from what I know cisco TFTP program does not run well on NT workstation OS but works ok on NT Server regards, suaveguru --- Jennifer Mellone <[EMAIL PROTECTED]> wrote: > Hi Gang, > > Is it me, or has anyone else had this problem using > the Cisco TFTP > program--- > > I TFTPed software from my laptop to a switch just > fine today. > > But then I tried to TFTP IOS code from my laptop to > a router today. I got > an error message (from the TFTP program itself), and > the program immediately > closed down. I even rebooted the laptop and this > did not help. > > - Jennifer Mellone > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Routing Problem
Hi, this is what I can think of. Correct me if I am wrong. Thanks. If your route is too specific and not able to be accepted by your upstream provider(s), the next good thing I can think of is to use a load balancer and insert it between the firewall and the web servers. - You obtain another block of IP from pacbell. Small size may do. - You configure your IGP to include IP addresses from both government and Pacbell. - You configure EBGP so that both of your router knows the best routes to return. Don't forget iBGP also. Set local preference if required. Also, inject default (or u do your own) if necessary. You don't need to annouce anything to ur upstream, therefore a private AS is needed. - You use a single block of private IP for your webservers. - At your load balancer, configure two IP maps. One map for IP of governmental ISP, another map for IP from Pacbell. - Configure ur DNS to announce 2(or more, if needed) IPs for any host you need to load balance. - Done - There are pros and cons. - The good thing is, you have another level of protection by the load balancer. (Smurf, ICMP bomb, scanning won't hurt you now). You may even consider throw away your PIXs. - The bad thing is, you have to buy two load balancers. :( - Also, you have to make sure the IP packet with right source IP to get out to the right uplink. Otherwise, the packet will be dropped by your ISP. This may need route-map. "Brian Wilcox" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I am currently adding another circuit to an additional > ISP for my network. I want to be able to use the > first circuit for a redundant backup but am not clear > on how to accomplish this. > > The setup: > (diagram located at > http://www.geocities.com/bwilcox_email/Routing_Design.html) > - watch word wrap > Internal LAN connected to two PIX's, one in failover > mode. The PIX's current default route points to the > old ISP (government). All of our internal (public) > addresses are from the Government ISP's address space, > which we have a /25 block. I'm currently NATing my 10 > net to this pool. I have an internal web server that > the users need access to from outside the network. > I'm adding the new circuit via PacBell and would like > traffic to take that route and failover to the > Government ISP. > > First solution: do BGP. Well, I can't. I only have a > /25, too specific, from the Government ISP and I have > to maintain the same address space. So my next > thought would be to PAT everything out the PacBell > circuit. That's fine and dandy but then the web > server will reply to the source with a different > address. I'd like to route the web server to the > Government ISP. The only way I can think of doing > that is via some sort of route map or policy map. > > Any comments would be greatly appreciated. > > Thanks, Brian > > __ > Do You Yahoo!? > Yahoo! Photos - Share your holiday photos online! > http://photos.yahoo.com/ > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
about connect the ISP
Hi guys: We are a small ISP, just using static routing connect the mother ISP, the mother ISP assign a class C address to us, I want to know how the mother ISP locate the Class c networking , just using static routing? Need they redistribute the static to their dynamic routing (for example OSPF) in order to the internet router know the class c network,? Did the mother ISP create the stub area, then assign the lots of ip address to stub area ,if so how to create the stub area by static routing? Anyone can give me some configuration, Thanks in advice gary __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: What should we be learning? * OR * Howard I'm hurt
Chuck: Haven't you figured it out? Keep the RFC's next to the bed so they can put you to sleep! No, seriously though - I am from the school where we should know the theory behind it, not necessarily the bitwise detail. If we have the theory behind it, know who is suppose to talk first, then what kind of replies there should be - the general flow of the process - we *should* know when there is a problem and the general area when troubleshooting. And then if we have to, we can go to the RFC to look at the detail. I am with you, I don't write the underlying code for how the equipment behaves, so I don't believe I need to be able to recall the detail from memory. Ed "Chuck Larrieu" <[EMAIL PROTECTED]> wrote in message 003801c07208$abb8e560$[EMAIL PROTECTED]">news:003801c07208$abb8e560$[EMAIL PROTECTED]... > RFC2328 ( OSPF ver 2 ) almost done. Have modified my thoughts on it. Still > seems to be a lot of repetition, but I believe I am beginning to appreciate > the complexity of the protocol. > > Seriously, for those of us browsing RFC's as part of our preparations, what > is it we should be learning? > > As someone who probably will not be writing router code ever, at what point > do I turn the page or just close it down entirely? > > Chuck > -- > I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as > it has been is over ( if you hope to pass ) From this time forward, you will > study US! > ( apologies to the folks at Star Trek TNG ) > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco's TFTP Program
There is a flaky bug in their software that sometimes occurs, sometimes doesn't. Try going into the option and turn off logging and displaying download progress ((I don't have it on this PC so I can't remember the exact options)) and then it should work ok. hope that helps - Original Message - From: "Jennifer Mellone" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 29, 2000 7:45 PM Subject: Cisco's TFTP Program > Hi Gang, > > Is it me, or has anyone else had this problem using the Cisco TFTP > program--- > > I TFTPed software from my laptop to a switch just fine today. > > But then I tried to TFTP IOS code from my laptop to a router today. I got > an error message (from the TFTP program itself), and the program immediately > closed down. I even rebooted the laptop and this did not help. > > - Jennifer Mellone > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco's TFTP Program
Try the solarwinds TFTP. Much more functional. www.solarwinds.com "Jennifer Mellone" <[EMAIL PROTECTED]> wrote in message 000101c071f9$ca790ca0$[EMAIL PROTECTED]">news:000101c071f9$ca790ca0$[EMAIL PROTECTED]... > Hi Gang, > > Is it me, or has anyone else had this problem using the Cisco TFTP > program--- > > I TFTPed software from my laptop to a switch just fine today. > > But then I tried to TFTP IOS code from my laptop to a router today. I got > an error message (from the TFTP program itself), and the program immediately > closed down. I even rebooted the laptop and this did not help. > > - Jennifer Mellone > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
setting bit pattern for extended ping
hi anyone knows why changing the bit pattern in extended ping from 0xABCD to some other thing can test sensitivity of networking devices and test for crosstalk? I read this to prepare for support 2.0 thanks suaveguru __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ip route question
thanks suaveguru --- Chuck Larrieu <[EMAIL PROTECTED]> wrote: > Admittedly it is not good practice, particularly in > the case of the original > question of this thread. On the other hand, in > prepping for the CCIE lab, I > find myself looking at a LOT of scenarios that are > filled with instances of > things that are definitely NOT good practice. > > Chuck > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of > suaveguru > Sent: Friday, December 29, 2000 10:52 PM > To: Chuck Larrieu; [EMAIL PROTECTED] > Subject: RE: ip route question > > You are right, but forwarding packets to a network > seems less seldom use right? > > thanks > suaveguru > > --- Chuck Larrieu <[EMAIL PROTECTED]> wrote: > > Sure. If the route is in your routing table. > > > > Works for me here in the lab. IOS accepts the > > command. The destination > > router sees the ping requests coming in. > > > > Why not? The router forwards packets based on > > entries in the routing table. > > What, fundamentally, is the difference between ip > > route 0.0.0.0 0.0.0.0 > > 172.16.75.45 and ip route 0.0.0.0 0.0.0.0 > > 172.16.0.0? > > > > As long as there is an entry in the routing table > > for either, the router > > will forward the packet out the appropriate > > interface. > > > > Chuck > > > > > > -Original Message- > > From: suaveguru [mailto:[EMAIL PROTECTED]] > > Sent: Friday, December 29, 2000 6:39 PM > > To: Chuck Larrieu; Stull, Cory; > [EMAIL PROTECTED] > > Subject:RE: ip route question > > > > you can point static route out to any network , I > > have > > not done that b4 can you please enlighten me? > > > > I always thought that you can only point static > > routes > > to physical interfaces, logical interfaces and a > > specific host's ip address but not a network > > > > > > suaveguru > > --- Chuck Larrieu <[EMAIL PROTECTED]> wrote: > > > Nope. In the Cisco world, anyway, you can point > a > > > static route out a > > > physical interface, out a logical interface, out > a > > > null interface, or to any > > > network that appears in your routing table. > Neat, > > > isn't it! > > > > > > Chuck > > > -Original Message- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] On Behalf Of > > > Stull, Cory > > > Sent: Friday, December 29, 2000 9:31 AM > > > To: '[EMAIL PROTECTED]' > > > Subject: ip route question > > > > > > > > > I know I'm showing my ignorance here but I'm > tired > > > of trying to find the > > > answer on CCO. Must be looking in the wrong > > places. > > > > > > > > > I just saw a Boson question asking about ip > > > route 0.0.0.0 0.0.0.0 int > > > ethernet0 > > > > > > > > > I thought you could only point static routes > like > > > that out of point to point > > > interfaces? For example: ip route 0.0.0.0 > > > 0.0.0.0 int ser0 > > > > > > > > > > > > > > > > > > > > > > > > Cory > > > > > > _ > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations > to > > > [EMAIL PROTECTED] > > > > > > _ > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations > to > > [EMAIL PROTECTED] > > > > > > __ > > Do You Yahoo!? > > Yahoo! Photos - Share your holiday photos online! > > http://photos.yahoo.com/ > > > > > __ > Do You Yahoo!? > Yahoo! Photos - Share your holiday photos online! > http://photos.yahoo.com/ > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Knowledge Net
Has anyone taken any of the classes through Knowledge Net? I just did the 6509 class which was pretty cool. Jeff _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: crossover or straight = CROSSOVER
A good rule of thumb is this: Think of the OSI 7 layer model. If you have to connect two devices that are 'peer to peer'-such as a router to router (L3-L3), hub to hub (L1-L1), or switch to switch(L2-L2), use a crossover cable. If you connect between layers (L1-L3/L2-L3/L1-L2), use straight thru. I have found this very helpful. >>> L Reid <[EMAIL PROTECTED]> 12/30/00 07:48AM >>> In my lab there are two (2) 1900's Trunking and in accordance with the documentiation a CrossOver cable is need. This was done and worked fine. Trunking did not work with a Straight. A straight was used and Trucking failed. "D. J. Jones" <[EMAIL PROTECTED]> wrote: Straight cable. ""sean"" wrote in message 92e71h$qg7$[EMAIL PROTECTED]">news:92e71h$qg7$[EMAIL PROTECTED]... > Hi, > > I am just wondering... does trunking use crossover or straight cable? > > Thanks > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = - Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: crossover or straight = CROSSOVER
In my lab there are two (2) 1900's Trunking and in accordance with the documentiation a CrossOver cable is need. This was done and worked fine. Trunking did not work with a Straight. A straight was used and Trucking failed. "D. J. Jones" <[EMAIL PROTECTED]> wrote: Straight cable. ""sean"" wrote in message 92e71h$qg7$[EMAIL PROTECTED]">news:92e71h$qg7$[EMAIL PROTECTED]... > Hi, > > I am just wondering... does trunking use crossover or straight cable? > > Thanks > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = - Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VoIP Lab
While at AT&T I took in some training on Voice Over IP and according to that, there needed to be a PBX and a Voice Over IP module from Cisco. In the Cisco 2620 or 2621 (do not remember which one was used) the module was a card. On the Test and Turn-up things went smooth. jim klane <[EMAIL PROTECTED]> wrote: Could someone tell me what is needed to use cisco's voice over ip . I would like to connect 5 phones in my office but i can not seem to find the necessary info to help me choose the components , I figure i should need 1 cisco ics7750 1 catalyst switch Where could i find more info. I have checked cisco.com but t become more confused..Does anyone have a case study or a design guide.. Please let me know jim k _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = [EMAIL PROTECTED] = = = = = = = = = = = = = = = = = = - Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ip route question
Another question, what would happen if you ended up redistributing static under the routing protocol and did not make the interface where the default route is pointed passive? Might run into some weird routing problems. I prefer to send the default route to an address rather than an interface. >>> "Chuck Larrieu" <[EMAIL PROTECTED]> 12/29/00 01:17PM >>> To which rule are you referring? Router_2(config)#ip route 0.0.0.0 0.0.0.0 ? A.B.C.D Forwarding router's address Ethernet IEEE 802.3 Loopback Loopback interface Null Null interface SerialSerial Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Andy Walden Sent: Friday, December 29, 2000 10:01 AM To: Stull, Cory Cc: '[EMAIL PROTECTED]' Subject:Re: ip route question That is the rule. I will say that when there was only one device on the ethernet I have done it accidently and it worked though. andy On Fri, 29 Dec 2000, Stull, Cory wrote: > > I know I'm showing my ignorance here but I'm tired of trying to find the > answer on CCO. Must be looking in the wrong places. > > > I just saw a Boson question asking about ip route 0.0.0.0 0.0.0.0 int > ethernet0 > > > I thought you could only point static routes like that out of point to point > interfaces? For example: ip route 0.0.0.0 0.0.0.0 int ser0 > > > > > > > > Cory > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Null Modem Cable
Hello Everybody. I am preparing for BCRAN Exam. I have following setup in my home lab. ROUTER A (2501) Connected with Computer A I want to dial from Computer B to Router A so that Router A will authenticate my client on Computer B. I don't have 2 telephone lines. I think that we can use NULL MODEM to do this lab but I don't know how to do this and how to comfigure ROUTER A(2501). Can anubody in this news group help me to do this lab If you have any idea to do this comfiguration than please send me an email. All ideas and comments will be appreciated Thanks Tariq _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: can SPAN port transmit?
See Inline. - Original Message - From: Lou Nelson <[EMAIL PROTECTED]> To: Nigel Taylor <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; Priscilla Oppenheimer <[EMAIL PROTECTED]>; Lou Nelson <[EMAIL PROTECTED]> Cc: Bryant Andrews <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 3:13 AM Subject: RE: can SPAN port transmit? > hmmm. > I fully understand the Lane ATM Vlan Elan relationships. > What is happening is that I only see the broadcast on the specific Vlan. I > do not see the direct Vlan to Vlan traffic nor the Vlan to Vlan Gateway > address... NT: This won't happen unless you implement some type of inter-vlan routing in which case you're no longer monitoring at layer 2 which is where the span ports on the switched devices are suppose to monitor/capture. Of course to monitor different vlans you would have to redefine you SPAN port values if you were looking to still mointor on Layer 2 . However, To monitor the VLAN to VLAN or VLANto VLAn gateway traffic you would have to do this where your VLAN maps to layer 3, which would mean at either the RSM(where you would probably have your HSRP gateways defined) or at router with a AIP card that provides the layer 3 requirememt. I assumed that the trunked ports were not passing the traffic > out the lane blades because the Cam Dynamics recognized that the destination > MAC was not down that port (trunked port... therefore it dropped the frame > and my spanned port on the other side of the cloud never got the frame... > and yes everything else is in place... a lec is configured on my Spanned > port switch's lane blade... > > I clearly do not know what I am missing... I really feel I have covered > everything > > > -Original Message- > From: Nigel Taylor [mailto:[EMAIL PROTECTED]] > Sent: Saturday, December 30, 2000 1:54 AM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla > Oppenheimer; Lou Nelson > Cc: Bryant Andrews > Subject: Re: can SPAN port transmit? > > > Lou, > The answer is yes. I must be more specific in stating that since > LANE extends layer 2 characteristics through the ATM cloud. ELANs are > simply a way of extending a VLAN(lan segment/broadcast domain). > So plugging a sniffer onto a span port that is configured to a specific VLAN > which is mapped to a possible specific ELAN you should be able to capture > all/any traffic within the E-LAN(Extended-VLAN). > > What you're seeing would tend to suggest a incorrectly SPAN port. > > HTH > > Nigel > > - Original Message - > From: Lou Nelson <[EMAIL PROTECTED]> > To: Priscilla Oppenheimer <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Saturday, December 30, 2000 12:02 AM > Subject: RE: can SPAN port transmit? > > > > The answer is no. I have tried before and I now think of spanning a port > as > > a 6th state of the STP... Listen only to the other port .. to TX and > > receive to the sniffer you will need another NIC and Port > > > > Now a question back to the group... Across an ATM cloud... using LANE... > and > > ELANS Is there a way to see ALL Vlan traffic (Inc. from switches > across > > the cloud) when you span a VLAN on a switch... Thus far I can ONLY see the > > broadcast traffic! > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > Priscilla Oppenheimer > > Sent: Friday, December 29, 2000 4:42 PM > > To: [EMAIL PROTECTED]; [EMAIL PROTECTED] > > Subject: Re: can SPAN port transmit? > > > > > > The reason I ask is that my client is developing a network management box > > that will connect to a SPAN port and collect traffic as well as > > occasionally send SNMP queries and other UDP packets. > > > > He realizes that if the user were collecting data from many ports there > > would be performance issues. However, he wants to know, in the absence of > > performance problems, will his device be able to send some queries? Is > > sending disabled on the SPAN port? The other answers (from people who have > > tried it) make me think the answer is no, sending is not disabled. > > > > Priscilla > > > > At 04:46 PM 12/29/00, [EMAIL PROTECTED] wrote: > > > > > > >Cisco employees have confirmed for me that devices connected to span > ports > > >are unable to act as normal hosts by design. > > > > > > > > > > > > > > > > > > > > >Priscilla Oppenheimer <[EMAIL PROTECTED]>@groupstudy.com on 12/29/2000 > > >03:27:52 PM > > > > > >Please respond to Priscilla Oppenheimer <[EMAIL PROTECTED]> > > > > > >Sent by: [EMAIL PROTECTED] > > > > > >To: [EMAIL PROTECTED] > > >cc:(bcc: Kevin Cullimore) > > >Subject: can SPAN port transmit? > > > > > > > > >Hi folks, > > > > > >If I connect a Sniffer-like device to the SPAN port of a switch, will the > > >Sniffer-like device be able to transmit data? > > > > > >My guess is no. From my reading on Cisco's SwitchProbe external hardware > > >probes, it appears that the SwitchProbe needs an additional port to send > > >dat
Re: Network Authorization - seek help
hi, For TACACS+ servers, I know you can set something similar to "acl=" in service section. but that's for Cisco routers, don't know if it's applicable to the server you are talking about though. Leon CCNP+Security, CCDA - Original Message - From: "NY" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 8:38 PM Subject: Network Authorization - seek help > Hi, > > Our policy is to only allow remote users telneting into a server called A through our RAS with authorization from CSNT. But the problem is we cannot stop the users from telneting to other servers in the LAN from the server A. We are NOT allowed to modify the server setting to exclude the telnet service. Is that possible to solve it on the RAS or AAA server level ? Thank you. > > Cheers, > NY > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Revisted - OSPF Virtual Links and RIDs
Chuck, I finally got a chance to mock this up in the lab and I've got some pretty cool resultsFirst of all when I did this using pretty much the same scenario the virtual link never went down at any time when the connection to r3 from r2 was shutdown. After clearing the routes and ospf redistribution the virtual-link was still up/up. Theory that stood the testI then used a external routing info.(rip) to advertise routes to the loopback identified with the virtual-link command. With a direct path/route between both loopbacks I then shut down the physical link between R1 and R2. As expected, the virtual-link stayed down and never came back up. In Doyle's book (Routing TCP/IP) he states that the virtual-link must be configured between two ABR's and the area it transits must having full routing info. I take the meaning of this as having a full map of the network. There is also a mention of using a non-backbone area, which I also take to mean - "An OSPF Area" in which case any external routing info used to obtain a path to the loopback would prove useless if not part of an OSPF area that is either directly connected to area or is connected by the same process a virtual-link Just some observations.. Any thoughts...! This is some really cool stuff. Nigel. - Original Message - From: Chuck Larrieu <[EMAIL PROTECTED]> To: CCIE_Lab Groupstudy List <[EMAIL PROTECTED]> Sent: Sunday, December 24, 2000 1:12 PM Subject: OSPF Virtual Links and RIDs > Just got through with one of the multiprotocol redistribution practice labs > ( Mentor Labs 4141 ) > > Got a question regarding virtual links and loopback RIDs. > > In the realm of OSPF, when direct ( meaning through the OSPF process ) > access to a particular router is lost, does that mean that any virtual link > associated with that router is lost? Well, yes, I know, and duh! > > But my question has to do with the placement of the RID into the routing > process. > > The deal is that there is an alternative link to the OSPF area 0. However it > is through a different routing protocol. All routes are redistributed > through that protocol, and when the direct i.e. OSPF link between the two > endpoints of the virtual link are severed, even though the route to the RID > is seen via the redistribution process, the virtual link apparently does not > come back up. > > This leads back to the question of the value of loopback addresses as a cure > all for routing process interruptions. In the scenario I ran, there was a > classic virtual link. > > R1-R2---R3 connected via serial links > Area2area1.area0 > > All routers have loopbacks, which under the rules of the game have become > the RID's > > There is also an external routing domain connecting R1 and R3 via the > ethernet ports. Redistribution is established, and works just fine. > > When I severed the serial link between R2 and R3, the virtual link goes > down, and does not re-establish itself, even though the RID is being > advertised as a route into the exterior domain, and remains in the routing > tables of all routers as external routes. > > I kinda expected this behaviour, but it still raises the question of the > supposed benefit of loopbacks as an interface that is "always up" and > therefore advantageous to use. > > One of those "pitfalls" someone was asking about a couple of weeks back, I > suppose. > > Chuck > -- > I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as > it has been is over ( if you hope to pass ) From this time forward, you will > study US! > ( apologies to the folks at Star Trek TNG ) > > ___ > To unsubscribe from the CCIELAB list, send a message to > [EMAIL PROTECTED] with the body containing: > unsubscribe ccielab > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: TCP/IP port 1761 and 1762
TCP port 1761 through 1764 are used for the Microsoft Management Console (remote management for WinNT/2000). Chris M. --- keith wood <[EMAIL PROTECTED]> wrote: > Any idea what exactly these ports are used for? I > know they are for cft-0 > and cft-1. What is CFT? All the RFC gives me is a > name and number (no > descriptions), but as it is Christmas I wont call > this number untill in the > New Year - I am just curious in the meantime so if > anyone knows the answer I > would appreciate it. > > I am asking as I have just started reading on the > subject of security, and a > port-scan of the network shows a lot of machines > with these 2 ports > active... > > Keith ;-) > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ip route question
Cory, I read thru the responses and they are all good but I would like to add... Who is to say that an Ethernet interface is not a point to point. Using media converters changing a FE interface from tx to fiber and then back again I have many WAN FE point to point interfaces. In a few cases I prefer the interface because it prevent routing loops when links fail. I run HSRP on three gateway 7507s with gig uplinks to a 7513. The 3 7507 are logically connected via ATM interfaces that also house the HSRP. By using the interface to point out the gig links versus the opposite end ip interface on the gig link I prevent on 7507 believing that sending packets back to the originating router is a preferred EIGRP route to get to the 7513. So the Eth interface does not have to be a broadcast environment... it can be a point to point! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Stull, Cory Sent: Friday, December 29, 2000 11:31 AM To: '[EMAIL PROTECTED]' Subject: ip route question I know I'm showing my ignorance here but I'm tired of trying to find the answer on CCO. Must be looking in the wrong places. I just saw a Boson question asking about ip route 0.0.0.0 0.0.0.0 int ethernet0 I thought you could only point static routes like that out of point to point interfaces? For example: ip route 0.0.0.0 0.0.0.0 int ser0 Cory _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Network Authorization - seek help
Hi, Our policy is to only allow remote users telneting into a server called A through our RAS with authorization from CSNT. But the problem is we cannot stop the users from telneting to other servers in the LAN from the server A. We are NOT allowed to modify the server setting to exclude the telnet service. Is that possible to solve it on the RAS or AAA server level ? Thank you. Cheers, NY _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Mgmt Vlan at Cat3548
Cheers, I have a headache problem with management vlan of my Cat3548 in every floors. The existing users at floor already separated in vlans and connect to a Cat65 for intervlan routing. Now my boss need to add a new vlan in every cat3548 for mgmt ( e.g : vlan99 ). I have tried isl encap for this 2 vlan for merge at cat65 ( one for users vlan and one for vlan99 for mgmt ) but it didn't work. Should I use int bvi at this ?? any inputs will be appreciated. the int sc0 at cat65 need to be grouped into vlan99 also.. thanks Badai Join 18 million Eudora users by signing up for a free Eudora Web-Mail account at http://www.eudoramail.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: can SPAN port transmit?
hmmm. I fully understand the Lane ATM Vlan Elan relationships. What is happening is that I only see the broadcast on the specific Vlan. I do not see the direct Vlan to Vlan traffic nor the Vlan to Vlan Gateway address... I assumed that the trunked ports were not passing the traffic out the lane blades because the Cam Dynamics recognized that the destination MAC was not down that port (trunked port... therefore it dropped the frame and my spanned port on the other side of the cloud never got the frame... and yes everything else is in place... a lec is configured on my Spanned port switch's lane blade... I clearly do not know what I am missing... I really feel I have covered everything -Original Message- From: Nigel Taylor [mailto:[EMAIL PROTECTED]] Sent: Saturday, December 30, 2000 1:54 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; Priscilla Oppenheimer; Lou Nelson Cc: Bryant Andrews Subject: Re: can SPAN port transmit? Lou, The answer is yes. I must be more specific in stating that since LANE extends layer 2 characteristics through the ATM cloud. ELANs are simply a way of extending a VLAN(lan segment/broadcast domain). So plugging a sniffer onto a span port that is configured to a specific VLAN which is mapped to a possible specific ELAN you should be able to capture all/any traffic within the E-LAN(Extended-VLAN). What you're seeing would tend to suggest a incorrectly SPAN port. HTH Nigel - Original Message - From: Lou Nelson <[EMAIL PROTECTED]> To: Priscilla Oppenheimer <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, December 30, 2000 12:02 AM Subject: RE: can SPAN port transmit? > The answer is no. I have tried before and I now think of spanning a port as > a 6th state of the STP... Listen only to the other port .. to TX and > receive to the sniffer you will need another NIC and Port > > Now a question back to the group... Across an ATM cloud... using LANE... and > ELANS Is there a way to see ALL Vlan traffic (Inc. from switches across > the cloud) when you span a VLAN on a switch... Thus far I can ONLY see the > broadcast traffic! > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Priscilla Oppenheimer > Sent: Friday, December 29, 2000 4:42 PM > To: [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: can SPAN port transmit? > > > The reason I ask is that my client is developing a network management box > that will connect to a SPAN port and collect traffic as well as > occasionally send SNMP queries and other UDP packets. > > He realizes that if the user were collecting data from many ports there > would be performance issues. However, he wants to know, in the absence of > performance problems, will his device be able to send some queries? Is > sending disabled on the SPAN port? The other answers (from people who have > tried it) make me think the answer is no, sending is not disabled. > > Priscilla > > At 04:46 PM 12/29/00, [EMAIL PROTECTED] wrote: > > > >Cisco employees have confirmed for me that devices connected to span ports > >are unable to act as normal hosts by design. > > > > > > > > > > > > > >Priscilla Oppenheimer <[EMAIL PROTECTED]>@groupstudy.com on 12/29/2000 > >03:27:52 PM > > > >Please respond to Priscilla Oppenheimer <[EMAIL PROTECTED]> > > > >Sent by: [EMAIL PROTECTED] > > > >To: [EMAIL PROTECTED] > >cc:(bcc: Kevin Cullimore) > >Subject: can SPAN port transmit? > > > > > >Hi folks, > > > >If I connect a Sniffer-like device to the SPAN port of a switch, will the > >Sniffer-like device be able to transmit data? > > > >My guess is no. From my reading on Cisco's SwitchProbe external hardware > >probes, it appears that the SwitchProbe needs an additional port to send > >data to a network management system. One port connects to a SPAN port on > >the switch and the other port connects to a normal port and is configured > >in "management mode." > > > >But, does anyone have experience with trying to send from a device > >connected to a SPAN port? > > > >Thanks > > > >Priscilla > > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
