IP Backbone [7:6016]
Hi guys, Could I know what is IP BACKBONE and where I can find the information about it either website, books and so on? Thanks in advance. Syam _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6016t=6016 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ARP versus Proxy-arp [7:5664]
At 03:32 PM 5/25/01, Chuck Larrieu wrote: Forgive the silly questions, but 1) was proxy arp enabled on the router It's not a silly question and I really wondered about that also. It doesn't show up in the config because it's the default, but I typed no ip proxy-arp and ip proxy-arp in Ethernet interface config mode to make sure. And I did get the router to actually do proxy arp in a few cases. My latest testing was with 172.16.0.0 networks: My address was set to 172.16.10.10/16. My default gateway address was set to 172.16.10.1. The default gateway's e0 was set to 172.16.10.1/24 and the router also had direct connections and EIGRP routes to 172.16.20.0, 172.16.30.0, and 172.16.40.0 and 172.16.50.0. Router responded on behalf of my PC's ARPs for 172.16.20.1, 172.16.30.1, 172.16.40.1 and 172.16.50.1. Yeah. Proxy ARP lives! If I configured my PC with its own address as the default gateway, I got the same results. Hooray! If I left out the configuration for the default gateway, my PC couldn't get anywhere off its major net. It didn't even try. The application just responded immediately with an error and no packets were seen with debug or sniffer. Boo. My PC could get to other networks within 172.16.0.0 because of Proxy ARP. I added a default route to my router while my PC was configured to use itself as the gateway. ip route 0.0.0.0 0.0.0.0 172.16.20.2 I pinged 200.200.200.200. My PC ARPed for it. The router responded! Hooray! Proxy ARP rocks. I also tried the original case, once I was sure Proxy ARP was really enabled. I left my PC on its normal office config on network 208.x.x.x, but connected to the lab network. The router complained about the source being on a different cable and did not respond to an ARP for my default gateway. If I had my default gateway set to myself, causing me to ARP for non-remote stations, the router also did not respond, complaining about the source being on a different cable. See Chuck's comments and quote from RFC below. Conclusions: Using Proxy ARP would not solve our travelling hotel user's problems. The user would have to do some reconfigs. Proxy ARP is a HACK. Caveats: I was running IOS 11.0 and Windows 98, both hacks themselves!? ;-) Priscilla and 2) was there a route to the 10dot network, or a default route in the routing table of the router in question? From RFC 1027: To permit multiple subnets per physical network, an ARP subnet gateway must use the physical network interface, not the subnet number to determine when to reply to an ARP request. That is, it should send a proxy ARP reply only when the source network interface differs from the target network interface. In addition, appropriate routing table entries for these phantom subnets must be added to the subnet gateway routing tables. OK. I get it. The router still needs to be one the same subnet as the host making the request. The RFC refers to multiple subnets of the same major network. In the case you, PO, mention, the router interface would have to have secondary addressing to cover all possibilities. Score one for the designer! Good call. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Priscilla Oppenheimer Sent: Friday, May 25, 2001 3:24 PM To: [EMAIL PROTECTED] Subject:RE: ARP versus Proxy-arp [7:5664] At 05:05 PM 5/25/01, Bob Vance wrote: Once the Proxy ARP answers the client's request for his DG on net 10, then all the other packets will be to real Internet addresses. OK, I hear you on the routing questions, but it turns out the router does NOT respond to the ARP for the DG. I decided to try it. It doesn't work for a different reason than expected. I left my PC configured as I use it on a real network and plugged it into my lab network, which uses a different addressing scheme. I was emulating a traveller connecting to the hotel network without reconfiguring the TCP/IP control panel. I had debug arp on and here was the result: IP ARP req filtered src 10.0.0.2 .0ed5.c7e7, dst 10.0.0.1 .. wrong cable The router won't respond to an ARP from a station that isn't on its subnet. Remember that an ARP packet has the sender's IP address in it. I was running 11.0 because my lab network is old so your results may vary. I think the hotel network is on fantasy island. ;-) Priscilla - Tks| BV | Sr. Technical Consultant, SBM, A Gates/Arrow Co. Vox 770-623-3430 11455 Lakefield Dr. Fax 770-623-3429 Duluth, GA 30097-1511 = -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Priscilla Oppenheimer Sent: Friday, May 25, 2001 3:04 PM To: [EMAIL PROTECTED] Subject: RE: ARP versus Proxy-arp [7:5664] If a router running Proxy ARP didn't have a route of last resort or default route would it
Re: ARP versus Proxy-arp [7:5664]
But say it could magically use proxy arp for nodes not on it's subnet (say you had software that was sniffing the line and would add that subnet). To answer Priscilla's question: They've got to do (P)NAT for all those addresses anyway, since even if it was a public or private address, it wouldn't get routed back to the hotel. Of course, if the software could add any network it saw in use internally, Priscilla couldn't get to her public subnet (since it would have added that network to it's inside interface). You could even purposely/accidentally blackhole sites by doing this, which is all the more reason it's not likely. No doubt hotels are just using DHCP, or maybe even giving out statics to track who is one what. For LA Networkers I'm staying at a Marriott with in-room CAIS internet access, so I'll be able to tell one way or another. You'd better believe I'll bring my new Sniffer as well and I'll be hacking the thing. No doubt they use some sort of vlan setup (default vlan gets you dhcp and net access just to the hotel pay website, once you pay up you get moved to the vlan with real access). Oh, and I'm going to bring a Cache Engine and Aironet 340 access point, so anyone nearby can have free internet access on me (costs me like $10/night, but the company is paying for it). As the hotel is already completely booked and it was reserved by Cisco, I'm guessing there may be a fair amount of folks with 802.11 NICs. $(%$%(#$ my router just crashed again, hehee. Silly me, I should just stop trying to do an Offline Sync with IE with this CE507 proxying for me: falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 7138812 593196 305376 358784 I/O170 1048644 694056 354588 354588 354012 falcon# May 25 19:26:13.573 PDT: %SYS-2-MALLOCFAIL: Memory allocation of 152 bytes failed from 0x8 00FA964, pool Processor, alignment 0 -Process= IP Input, ipl= 4, pid= 29 -Traceback= 800F83B8 800FA0B0 800FA968 8085CFFC 8085D784 80858034 808575A4 80856B3C 802350 FC 80233738 80233938 80233A94 8011A09Csh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 7676276 55732 10832 32728 I/O170 1048644 694056 354588 354588 354012 -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Chuck Larrieu wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Forgive the silly questions, but 1) was proxy arp enabled on the router and 2) was there a route to the 10dot network, or a default route in the routing table of the router in question? From RFC 1027: To permit multiple subnets per physical network, an ARP subnet gateway must use the physical network interface, not the subnet number to determine when to reply to an ARP request. That is, it should send a proxy ARP reply only when the source network interface differs from the target network interface. In addition, appropriate routing table entries for these phantom subnets must be added to the subnet gateway routing tables. OK. I get it. The router still needs to be one the same subnet as the host making the request. The RFC refers to multiple subnets of the same major network. In the case you, PO, mention, the router interface would have to have secondary addressing to cover all possibilities. Score one for the designer! Good call. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Priscilla Oppenheimer Sent: Friday, May 25, 2001 3:24 PM To: [EMAIL PROTECTED] Subject: RE: ARP versus Proxy-arp [7:5664] At 05:05 PM 5/25/01, Bob Vance wrote: Once the Proxy ARP answers the client's request for his DG on net 10, then all the other packets will be to real Internet addresses. OK, I hear you on the routing questions, but it turns out the router does NOT respond to the ARP for the DG. I decided to try it. It doesn't work for a different reason than expected. I left my PC configured as I use it on a real network and plugged it into my lab network, which uses a different addressing scheme. I was emulating a traveller connecting to the hotel network without reconfiguring the TCP/IP control panel. I had debug arp on and here was the result: IP ARP req filtered src 10.0.0.2 .0ed5.c7e7, dst 10.0.0.1 .. wrong cable The router won't respond to an ARP from a station that isn't on its subnet. Remember that an ARP packet has the sender's IP address in it. I was running 11.0 because my lab network is old so your results may vary. I think the hotel network is on fantasy island. ;-) Priscilla - Tks| BV | Sr. Technical Consultant, SBM, A Gates/Arrow Co. Vox 770-623-3430 11455 Lakefield Dr.
Lots of brodacast packets [7:6018]
I am getting lot of broadcast packets on FastEthernet interface when I do sh interface on cisco 7505. I also get input errors on that interface and big ping (up to 1200ms) latency to isdn sites. What to expect if I turn off these broadcasts ? Do I need receive broadcast packets on interface ? Thanks Inamul Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6018t=6018 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Router problems, memory dropping like a rock [7:6004]
I have experienced that same problem. My content engine crashed my 7204 router when i deployed it. Bascially the router's memory drop till 1MB and auto reboot itself. This happens every hour i opened a TAC case and they told me is the bug in my IOS. I am using 12.1(4) Jason Roysdon wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... My poor little 827-4v just started crashing. I've been tweaking with a Content Engine 507 (used as a proxy box, no WCCP support on the 827). I'm guessing that's what is hammering the box, but why is it the memory not returning to free use? falcon#sh ver Cisco Internetwork Operating System Software IOS (tm) C820 Software (C820-K2NOSV6Y6-M), Version 12.1(5)YB, EARLY DEPLOYMENT RELEASE SOF TWARE (fc1) TAC:Home:SW:IOS:Specials for info Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Thu 08-Feb-01 01:00 by detang Image text-base: 0x80013170, data-base: 0x80997DE4 ROM: System Bootstrap, Version 12.1(1r)XB1, RELEASE SOFTWARE (fc1) ROM: C820 Software (C820-K2NOSV6Y6-M), Version 12.1(5)YB, EARLY DEPLOYMENT RELEASE SOFTWAR E (fc1) falcon uptime is 5 minutes System returned to ROM by reload at 18:32:58 PDT Fri May 25 2001 System restarted at 18:34:23 PDT Fri May 25 2001 System image file is flash:c820-k2nosv6y6-mz.121-5.YB.bin CISCO C827-4V (MPC855T) processor (revision 0x502) with 23552K/1024K bytes of memory. Processor board ID JAD04390QBC (72633648), with hardware revision CPU rev number 5 Bridging software. 4 POTS Ports 1 Ethernet/IEEE 802.3 interface(s) 1 ATM network interface(s) 128K bytes of non-volatile configuration memory. 8192K bytes of processor board System flash (Read/Write) Configuration register is 0x2 falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 6068088 1663920 1662060 1663268 I/O170 1048644 692208 356436 356436 355860 If I fire up my IE5 Offline Syncronize (Cisco Field Notices, Cisco Headlines, Slashdot.org), within a few minutes it's dropped to: falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 6362292 1369716 1350056 1345636 I/O170 1048644 692208 356436 356436 355860 This time it appears to have settled (probably because the CE507 has a large portion of the content cached now). After about 5 minutes: falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 6693236 1038772 1038444 1029716 I/O170 1048644 692208 356436 356436 355860 Can we see a trend? All the while, my Offline Syncronization is busy pulling down sites (no doubt getting them faster with the CE507 reading ahead and pulling down images to proxy to me before my PC even asks for them). Ok, so my question is, why is it getting hammered so hard? I am running CBAC Firewall and IPSEC with 6 tunnels (nothing going on with VPN), so that all adds up with ACLs that packets have to go through. But the overall traffic speed is nothing staggering (less than 21K), but it's small web traffic, so the pps are probably the more intense item. Oh, about 10 minutes into it, and we're destined for memory allocation problems as soon as we bottom out (which means telnet and console access dies): falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 6946532 785476 745176 735040 I/O170 1048644 692208 356436 356436 355860 I'm also curious why my Processor + I/O total doesn't come anywhere near 24mb (only about a third). falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 7092000 640008 311376 357996 I/O170 1048644 692208 356436 356436 355860 At least the box is recovering now. Before, the free and lowest would track the same all the way 'till I lost my session when it bottomed out. Now, it at least appears to be recovering (It looks like the Cisco stuff finised, and just Slashdot.org now and it seems to be crawling). Anyway, any ideas on why this is happening so drastically? The only time I've ever killed ram is with routing protocols and tables getting to big (on old 2500s with only 2mb). Ok, and now it's really screwy. I do a show run and it's blank. I check show version, and sure enough I've got something odd set (0x2). Fixed that and bounced the box just before it was going to kill my telnet: Configuration register is 0x2 (will be 0x2102 at next reload) falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8
How do I change flash on 2500 to read-write from read only [7:6020]
__ FREE voicemail, email, and fax...all in one place. Sign Up Now! http://www.onebox.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6020t=6020 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
help --------------Pls ................OIR Error [7:6021]
Hi I have router configured as X25 router .I have 2 slots in it with each having 4 serial ports on them.The problem is that when i connect the cisco provided cable just the cable to the administratively shutdown serial port it gives me error : %OIRINT:OIR Event has occured OIR_ctrl 50 oir stat 8F88 ( i have checked OIR it stands online insertion and removal but i could not find this particular error) and this also hangs the router i have checked the cable i can not do many thngs on the router as it is in live n/w ..Please help ..the router works well after i remove cable and restart the router . Any help will be appreciated Regards Arun Sharma Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6021t=6021 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Lots of brodacast packets [7:6018]
I am getting lot of broadcast packets on FastEthernet interface when I do sh interface on cisco 7505. What does, Lots, mean? Broadcasts are part of life in a network, cf. ARP, GNS, SAP, RIP updates, etc. I also get input errors on that interface What percentage of your input packets is it? Are they collisions (normal in an unswitched environment), CRC's, or ?? You may want to check your cabling, and your speed/duplex settings if the router is plugged into a switch. and big ping (up to 1200ms) latency to isdn sites. Could be caused by many, many things. It's unlikely this has anything to do with your ethernet interface. You might start by looking for overutilized circuits causing routers to drop packets from their output queues. What to expect if I turn off these broadcasts? ARP won't work, therefore TCP/IP won't work. Do I need receive broadcast packets on interface? Yes. HTH, doctorcisco _ Get your FREE download of MSN Explorer at http://explorer.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6022t=6018 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: DNS and ISP question [7:5898]
still there: http://www.acmebw.com/askmrdns/ - Tks| BV | Sr. Technical Consultant, SBM, A Gates/Arrow Co. Vox 770-623-3430 11455 Lakefield Dr. Fax 770-623-3429 Duluth, GA 30097-1511 = -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of ElephantChild Sent: Friday, May 25, 2001 1:36 PM To: [EMAIL PROTECTED] Subject: Re: DNS and ISP question [7:5898] On Fri, 25 May 2001, Scott Meyer wrote: I have a question about changing ISP's when a domain name(s) is registered to an IP address(s) owned by the ISP. Obviously, we need to get the DNS registration changed to an address owned by the new ISP. I have had some transitions that have not been real smooth, and would like the current best practice for doing this. Any input is apprectiated. ObWhereDidItGo: Does anyone know where the Ask Dr. DNS web site went? I wanted to point the poster to it, but couldn't find it. Oh well... Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6024t=5898 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:6027]
Ahh, thanks for the insight. I didn't realize that was the case. My MPLS experience is restricted to Juniper at this point. Pete *** REPLY SEPARATOR *** On 5/26/2001 at 8:58 AM Michael Cohen wrote: Yes, that's true. TLV's #22 and #135 are used to carry information needed for MPLS TE however, in order to enable these TLV's on a cisco router, wide metric support is required... http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120 t/120t7/te120_7t.htm#xtocid214168 Cheers, -Michael Cohen -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Peter Van Oene Sent: Saturday, May 26, 2001 1:02 AM To: [EMAIL PROTECTED] Subject: RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:6015] A small correction. Traffic engineering databases are populated via new TLV's in IS-IS (see Draft-ietf-isis-traffic-0x.txt). Wide metric support is not required. *** REPLY SEPARATOR *** On 5/25/2001 at 12:06 PM Michael Cohen wrote: Quite right. RSVP-TE is only for path creation and setup. Actual bandwidth allocation information is disseminated to all TE devices using the IGP (OSPF Opaque LSA's and IS-IS wide metrics). This also leads to the current limitation of only running MPLS-TE within a single area of the link state IGP since the bandwidth information doesn't cross area boundaries. Each head end of TE tunnels should know what bandwidth is available through the entire tunnel path prior to RSVP signaling. Cheers, -Michael Cohen -Original Message- From: Irwin Lazar [mailto:[EMAIL PROTECTED]] Sent: Friday, May 25, 2001 10:25 AM To: 'Michael Cohen'; [EMAIL PROTECTED] Subject: RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:5765] Just to clarify, most other vendors are now heading down the RSVP-TE road for MPLS LDP provisioning (or at the very least, they are agreeing to support RSVP-TE). The RSVP-TE vs. CR-LDP argument seems to finally be dying down. It should be noted that RSVP-TE is only for path creation and setup, it doesn't perform the same role as was envisioned for IntServ. If anyone is interested in comparing the two protocols, Data Connection has a good white paper on their site, which I link to from the MPLS Resource Center - www.mplsrc.com. Irwin -Original Message- From: Michael Cohen [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 24, 2001 2:17 PM To: [EMAIL PROTECTED] Subject: RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:5765] I think there might be some confusion as to where RSVP and CR-LDP are being used. Steve is correct in saying that Cisco is using RSVP and most other vendors are using CR-LDP for Traffic Engineering. Cisco is also using the proprietary TDP to distribute tags in their MPLS solution while other vendors are conforming to the MPLS standard LDP. Cisco does support LDP for tag distribution in their 12.0.10ST and higher software and plans on deploying it in 12.2T for availability on most platforms. I haven't heard Cisco planning support for CR-LDP with Traffic Engineering in the near future... -Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Stephen Skinner Sent: Thursday, May 24, 2001 12:13 PM To: [EMAIL PROTECTED] Subject: RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:5758] guys, thanks for your imput . yes i was loosely discribing MPLS ...it does have all the functions you state... and more , i must be mistaken about the RVSP because i seem to remeber reading somewhere that cisco is favoring RSVPand that there LDP is based on this but hey i must be mistaken . also the RFC you list does not come up as valid ont the ITEF...please can you re-send this many thanks steve From: Marc-Andre Giroux Reply-To: Marc-Andre Giroux To: [EMAIL PROTECTED] Subject: RE: Isn't MPLS basically just ATM PNNI, but for layer 3? [7:5723] Date: Thu, 24 May 2001 08:56:43 -0400 Steve, MPLS is alot more then just ATM PNNI at layer 3. Your statement is semi true when talking about MPLS VPN's the concept does come from ATM but there is so much more you can do with it go read on traffic engineering, the fish bowl effect, valued added services (VPNs) and the network protection. As for your other statement saying that cisco uses RSVP and everyone else doesn't. This also is wrong. Cisco uses TDP wich is a label distribution protocol that is proprietary but they also support the standard LDP (RFC 3630) that Juniper and Everyone else are supporting. Juniper personnaly doesn't have as much support for LDP then RSVP-TE (rsvp has existed for a couple of years its the TE extensions that are used in Traffic engineering). But when you start talking about this be sure to know what you are talking about. BTW you can't use LDP or TDP to do MPLS traffic-Engineering ( and this is the killer app of MPLS). I hope this clarifies a few things, I also hope you don't take
RE: help --------------Pls ................OIR Error [7:6021]
Have you tried reloading the router with the cable attached? Or blowing away the X.35 config, reloading with the cable attached, then putting in the X.25 What version of IOS are you running? I have documented a couple of problems revolving around serial port cables with 12.0.4 or so. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 3:58 AM To: [EMAIL PROTECTED] Subject:help --Pls OIR Error [7:6021] Hi I have router configured as X25 router .I have 2 slots in it with each having 4 serial ports on them.The problem is that when i connect the cisco provided cable just the cable to the administratively shutdown serial port it gives me error : %OIRINT:OIR Event has occured OIR_ctrl 50 oir stat 8F88 ( i have checked OIR it stands online insertion and removal but i could not find this particular error) and this also hangs the router i have checked the cable i can not do many thngs on the router as it is in live n/w ..Please help ..the router works well after i remove cable and restart the router . Any help will be appreciated Regards Arun Sharma FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6028t=6021 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Pix 6.0 [7:5950]
Spencer, Wildpackets notes the following ports: Yahoo! Instant Messenger:Port 5050 TCP Real Networks: Port 554 and 7070 TCP Windows Media Player: Port 7007 TCP MSN/Hotmail Messenger: Port 1863 TCP You could also put up a sniffer (or Etherpeek, or, ...) and play around to see what you come up with. Don't be suprised if users simply move over to a web based chat protocol or find other ways around it ;-) Bruce Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6029t=5950 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: help --------------Pls ................OIR Error [7:6021]
hi yes i tried reloading the router with the cables attached and it worked .. thanks for the help but what could be the reason for that if i know it will be a help . Arun Sharma Chuck Larrieu wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Have you tried reloading the router with the cable attached? Or blowing away the X.35 config, reloading with the cable attached, then putting in the X.25 What version of IOS are you running? I have documented a couple of problems revolving around serial port cables with 12.0.4 or so. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 3:58 AM To: [EMAIL PROTECTED] Subject: help --Pls OIR Error [7:6021] Hi I have router configured as X25 router .I have 2 slots in it with each having 4 serial ports on them.The problem is that when i connect the cisco provided cable just the cable to the administratively shutdown serial port it gives me error : %OIRINT:OIR Event has occured OIR_ctrl 50 oir stat 8F88 ( i have checked OIR it stands online insertion and removal but i could not find this particular error) and this also hangs the router i have checked the cable i can not do many thngs on the router as it is in live n/w ..Please help ..the router works well after i remove cable and restart the router . Any help will be appreciated Regards Arun Sharma 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6031t=6021 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Pix 6.0 [7:5950]
Gee, is it time to repeat my observation that the firewall is no longer the appropriate device for doing this kind of stuff.? What happens when some user or group has a valid business reason to use instant messenger or real audio? Now how to distinguish between the valid and non-valid uses and users? IF this is problem, and IF your management has directed you to do something the first thing to do is work with HR to get an acceptable internet use policy into the employee handbook. Next, get a third party package like web sense or surf control, and use it to enforce policies as determined by management. This will also do a lot to stop the p*rn and the frivolity. And thee products allow for different users and groups to have different privileges. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Saturday, May 26, 2001 7:54 AM To: [EMAIL PROTECTED] Subject:RE: Pix 6.0 [7:5950] Spencer, Wildpackets notes the following ports: Yahoo! Instant Messenger:Port 5050 TCP Real Networks: Port 554 and 7070 TCP Windows Media Player: Port 7007 TCP MSN/Hotmail Messenger: Port 1863 TCP You could also put up a sniffer (or Etherpeek, or, ...) and play around to see what you come up with. Don't be suprised if users simply move over to a web based chat protocol or find other ways around it ;-) Bruce FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6032t=5950 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: help --------------Pls ................OIR Error [7:6021]
Beat the hell out of me. In the past I have posted about problems with earlier 12.x codes, where if I plugged serial cables into a serial interface while the router was powered on, IP would not work, although IPX would. I've had people tell me I was an idiot, and this couldn't happen. But Pamela Forsythe told me she recognized the phenomenon. I've moved my routers onto various versions of 12.1 code, and have not seen the problem. Actually, I don't think I ever saw the problem with later versions of 12.0 code either. Still curious what IOS version you are running. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 8:02 AM To: [EMAIL PROTECTED] Subject:Re: help --Pls OIR Error [7:6021] hi yes i tried reloading the router with the cables attached and it worked .. thanks for the help but what could be the reason for that if i know it will be a help . Arun Sharma Chuck Larrieu wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Have you tried reloading the router with the cable attached? Or blowing away the X.35 config, reloading with the cable attached, then putting in the X.25 What version of IOS are you running? I have documented a couple of problems revolving around serial port cables with 12.0.4 or so. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 3:58 AM To: [EMAIL PROTECTED] Subject: help --Pls OIR Error [7:6021] Hi I have router configured as X25 router .I have 2 slots in it with each having 4 serial ports on them.The problem is that when i connect the cisco provided cable just the cable to the administratively shutdown serial port it gives me error : %OIRINT:OIR Event has occured OIR_ctrl 50 oir stat 8F88 ( i have checked OIR it stands online insertion and removal but i could not find this particular error) and this also hangs the router i have checked the cable i can not do many thngs on the router as it is in live n/w ..Please help ..the router works well after i remove cable and restart the router . Any help will be appreciated Regards Arun Sharma 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6033t=6021 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Remote Access [7:6034]
Hi Guys, What command line do I use to configure my router to receive multiple remote connections. I use ISDN line, I have already configured DOD, and its working fine. Please assist... Regards, Akin Durosinmi-Etti. HND, MCSE, CCNA Cisco Specialist Techno Zone Limited WoodGreen, London. Phone: +44 (0)20 8881 6729 Fax: +44 (0)20 8881 6705 Mobile: +44 (0)7958 294 720 E-mail: [EMAIL PROTECTED] ** This message may contain information proprietary to Techno Zone Limited so any unauthorised disclosure, copying or distribution of its contents is strictly prohibited. ** Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6034t=6034 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Pass CCNA with 953, I have a lot of study stuff!! [7:6035]
I have a lot of studying material here for CCNA (over 2000 MCs and other notes) and MCSE W2K Core! If you have other studying material such as CCNP/CCIE/ MCSE W2K electives , pls email to me! I can exchange my material with you! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6035t=6035 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Remote Access [7:6034]
I believe you're referring to a dialer profiles, using a dialer interface instead of legacy. http://www.cisco.com/warp/public/793/access_dial/ddr_dialer_profile.html Phil - Original Message - From: Akin Durosinmi-Etti To: Sent: Saturday, May 26, 2001 12:38 PM Subject: Remote Access [7:6034] Hi Guys, What command line do I use to configure my router to receive multiple remote connections. I use ISDN line, I have already configured DOD, and its working fine. Please assist... Regards, Akin Durosinmi-Etti. HND, MCSE, CCNA Cisco Specialist Techno Zone Limited WoodGreen, London. Phone: +44 (0)20 8881 6729 Fax: +44 (0)20 8881 6705 Mobile: +44 (0)7958 294 720 E-mail: [EMAIL PROTECTED] ** This message may contain information proprietary to Techno Zone Limited so any unauthorised disclosure, copying or distribution of its contents is strictly prohibited. ** FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6036t=6034 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Upload over console port. [7:5912]
Hit it right on the head Kevin. I follow this group because people on it are asking/doing things that my current situation doesn't expose me to. Just because I have those letters after my name does not mean I'm the purveyor of all things Cisco, or otherwise for that matter. I had some time at work Friday afternoon ( it was dead before the holiday weekend) where a 2610 router I was going to configure for a remote site was not needed until later next week. I figured I'd play with it a little and try to do something I knew nothing about xmodem. I had seen it talked about here and had looked on CCO for information about it and it was always in the context of downloading an image. I was wondering if I could upload it, and having never used xmodem I figured I'd ask. I'll take my lumps on the tftp attempt. About five minutes after I tried it I was kicking myself for being that dumb. Wasn't the first time I've done something like that and I'm sure it won't be the last. As I promised myself I'd not play with any routers at home this weekend and instead play some golf I haven't been able to try the advice given by EJAY, but I'll give it a shot on Tuesday. Thanks all. Jim Kevin Wigle wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... that's where experience comes in I have all those initials too (except the A+ but then I got others...) but I didn't have to do that myself until just a while ago. I became one with tftpdnld and xmodem. Kevin Wigle lots of letters but still learning - Original Message - From: James To: Sent: Friday, May 25, 2001 5:08 PM Subject: RE: Upload over console port. [7:5912] I don't mean to be sarcastic or rude. Just being curious... How come he's certified CCNA,CCDA,CCNP,CCDP but he's not aware of that ?? --- Hire, Ejay wrote: You can't tftp across the console port, you have to tftp from something you have IP connectivity to. If you have to upload from the console, the command you want is (From Rom IOS) copy xmodem flash:yourfilename.bin Ejay Hire -Original Message- From: James Haynes [mailto:[EMAIL PROTECTED]] Sent: Friday, May 25, 2001 2:44 PM To: [EMAIL PROTECTED] Subject: Re: Upload over console port. [7:5912] As an aside, I've tried copy flash tftp using the console port connected to my PC and TFTPD32 running on the PC. I keep getting the error: #copy flash tftp Source filename []? c2600-is40-mz.120-4.T Address or name of remote host []? XXX.XXX.XXX.XXX Destination filename [c2600-is40-mz.120-4.T]? . %Error opening tftp://XXX.XXX.XXX.XXX/c2600-is40-mz.120-4.T (Undefined error) -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP James Haynes wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I've found various documents at Cisco and have seen discussion here about downloading an image to a router using the console port and xmodem. I haven't in my searches seen whether it is possible to upload images from the console port to a tftp server. If anyone has any information or can find a relevant link on CCO I'd appreciate it. -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP 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] __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6037t=5912 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ARP versus Proxy-arp [7:5664]
It would be terrific if PCs could join a network without tinkering with the TCP/IP control panel. It would be similar to the AppleTalk design of 1984! ;-) Anyway, I think I've proven my point that the hotel network will require quite a bit of ingenious design beyond just depending on Proxy ARP. Do let us know what you discover about the Marriott hotel network! Don't do too much hacking now. I installed an Apple 802.11 Airport access point in a Starbucks that is connected to a high-speed MAN via a cable modem. Customers come in with their laptops and get on the net no problem. But the instructions for what they have to do on their PCs is a page long. One of the gotchas is the annoying issue with TCP/IP being bound to an Ethernet card instead of the wireless card. This may not be an issue with newer OSs than Win 98. The other annoying thing with Win 98 is the need to reboot with every little change to the TCP/IP control panel. The list of instructions for Macintoshes, by the way, is only 1/2 a page. ;-) Priscilla At 02:29 AM 5/26/01, Jason Roysdon wrote: But say it could magically use proxy arp for nodes not on it's subnet (say you had software that was sniffing the line and would add that subnet). To answer Priscilla's question: They've got to do (P)NAT for all those addresses anyway, since even if it was a public or private address, it wouldn't get routed back to the hotel. Of course, if the software could add any network it saw in use internally, Priscilla couldn't get to her public subnet (since it would have added that network to it's inside interface). You could even purposely/accidentally blackhole sites by doing this, which is all the more reason it's not likely. No doubt hotels are just using DHCP, or maybe even giving out statics to track who is one what. For LA Networkers I'm staying at a Marriott with in-room CAIS internet access, so I'll be able to tell one way or another. You'd better believe I'll bring my new Sniffer as well and I'll be hacking the thing. No doubt they use some sort of vlan setup (default vlan gets you dhcp and net access just to the hotel pay website, once you pay up you get moved to the vlan with real access). Oh, and I'm going to bring a Cache Engine and Aironet 340 access point, so anyone nearby can have free internet access on me (costs me like $10/night, but the company is paying for it). As the hotel is already completely booked and it was reserved by Cisco, I'm guessing there may be a fair amount of folks with 802.11 NICs. $(%$%(#$ my router just crashed again, hehee. Silly me, I should just stop trying to do an Offline Sync with IE with this CE507 proxying for me: falcon#sh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 7138812 593196 305376 358784 I/O170 1048644 694056 354588 354588 354012 falcon# May 25 19:26:13.573 PDT: %SYS-2-MALLOCFAIL: Memory allocation of 152 bytes failed from 0x8 00FA964, pool Processor, alignment 0 -Process= IP Input, ipl= 4, pid= 29 -Traceback= 800F83B8 800FA0B0 800FA968 8085CFFC 8085D784 80858034 808575A4 80856B3C 802350 FC 80233738 80233938 80233A94 8011A09Csh mem HeadTotal(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 80FA04D8 7732008 7676276 55732 10832 32728 I/O170 1048644 694056 354588 354588 354012 -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6039t=5664 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Advantages/disadvantages of WS-x5006 module over ws-x5009 [7:6040]
Side issue is that older blades require an expensive SIMM upgrade. Avoid any with Hardware revision 1.6 and lower. Another way to identify these cards are that the part number is 73-1414-08 Rev A0 and below. 73-1414-09 and above are OK. -Original Message- From: Ed Dombrowski [mailto:[EMAIL PROTECTED]] Sent: Saturday, May 26, 2001 7:49 AM To: [EMAIL PROTECTED] Subject: Advantages/disadvantages of WS-x5006 module over ws-x5009 [7:6023] Can anybody offer any insight into the advantages or disadvantages of a ws-x5006 SUP I module (FX uplinks) compared to a ws-x5009 SUP I module (TX uplinks) in a typical CCNP/CCIE lab environment where the CAT5K is probably the only switch or maybe there is one other switch like a 2924 xl. In a single switch environment it doesnt seem like there would be much difference and there seems to be many more CAT5k switches with 5006 modules on ebay. In an environment where you have say a 2924 downstream from the CAT5k wouldnt you just use a 10/100 link from something like a 5213 card? I know this is kind of a basic question but i am just looking for some insight on this issue. Ed FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6040t=6040 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: The disgusting and useless nslookup [7:6041]
Let me rephrase this response: I didn't mean to imply that I *only* use 'nslookup' or that I use it to troubleshoot DNS problems. I use it to resolve :) resolver issues, in which case it is perfect and 'dig' is useless. - Tks| BV | Sr. Technical Consultant, SBM, A Gates/Arrow Co. Vox 770-623-3430 11455 Lakefield Dr. Fax 770-623-3429 Duluth, GA 30097-1511 = -Original Message- From: bob vance Sent: Saturday, May 26, 2001 3:55 PM To: blst Subject: RE: The disgusting and useless nslookup I didn't say that I used it to troubleshoot DNS problems -- only resolver issues, in which case it is perfect and 'dig' is useless. - Tks| BV | Sr. Technical Consultant, SBM, A Gates/Arrow Co. Vox 770-623-3430 11455 Lakefield Dr. Fax 770-623-3429 Duluth, GA 30097-1511 = -Original Message- From: Jim Reid [mailto:[EMAIL PROTECTED]] Sent: Saturday, May 26, 2001 3:25 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: The disgusting and useless nslookup Bob == Bob Vance writes: Bob That's the main reason that I use it -- in fact I always use Bob the vendor's copy so that things like nsswitch are accounted Bob for. The other reason that I use it is laziness -- I'd Bob rather type ping bobv than ping bobv.dyn.atl.sbm.com This is one of the major reasons for *not* using nslookup. If nslookup is returning answers from other lookup mechanisms on the computer, how can you expect it to troubleshoot DNS problems? How can you tell which lookup facility the answer came from? What if that answer differs from what's in the DNS (which wasn't queried because nsswitch and friends say look at /etc/hosts or NIS before going to the DNS)? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6041t=6041 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
A suggestion when posting answers to questions. [7:6042]
Can I make a suggestion that might help to improve the usefulness of this site? If someone is going to post an answer to a question on this web site, can they make sure that they post a reference where one can look up the answer / explanation? I've seen a number of answers to questions that either weren't correct, or missed the key points that are needed to understand the issue. If we post a reference to either a web page (Cisco TAC), or a page in a book (ie Comer Vol 1, pgs 120 - 125), we can garner enough material to truly understand the associated topic instead of just memorizing an answer that may or may not be correct. Thanks Chris Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6042t=6042 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CISCOWORKS 2000 [7:5582]
JohnMail wrote: I am trying to decide whether or not I should attend a CISCOWORKS 2000 BOOT CAMP program that costs $4000 for 5 days. The name of the course is CISCOWORKS 2000 FUNDAMENTALS LAN/WAN Is there a better way of acquiring the same training at a lower cost via online sources. I am also interested in books on this subject. Mentor offers Ciscoworks Fundamentals and will shortly be offering Ciscoworks LAN/WAN as two separate classes. There's no way that you can take in all of the information that you need about both of these products in a one week boot camp. -Jon Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6044t=5582 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: PIX Software V6.0 [7:5969]
Whoever you spoke to at TAC was misinformed. I'm using the free 56bit DES key on our PIX and I can authenticate using the VPN 3.0 client. You sure don't need any 3DES key. And in response to an earlier question posed regarding Diffie-Hellman Group 2 usage. I originally had the isakmp policy using Group 1 but the VPN 3.0 client bombed out on attempting to authenticate. As soon as I changed the statement on the PIX to group 2, voila!, it worked right away. I guess the VPN3.0 client is using group 2 by default so the PIX must also use group 2. I can't find any settings where you can change to group 1 on the VPN client software. Vijay Ramcharan - Original Message - From: Alex Lee To: Sent: Friday, May 25, 2001 7:38 PM Subject: Re: PIX Software V6.0 [7:5969] No more DES. I was told by TAC that if you want to use VPN 3.0 client, your PIX must have 3 DES activated. A pre-sale told me that this costs $1,000.00 plus license for VPN clients. Can someone confirm this ? Alex Lee Carroll Kong wrote in message ... At 05:17 PM 5/25/01 -0400, Vijay Ramcharan wrote: If anyone wasn't aware, V6.0 of the PIX software is now available. And as I just found out, to use the VPN 3.0 client, isakmp policy ? group 2 must be used to enable successful authentication. Vijay Ramcharan Are you sure this is not user configurable? Group 2 refers to the Diffie-Hellman group used. I suppose unless they made it a standard to not allow you to use Group 1 (weaker), but sheesh, if they made that the requirement, how dare they let people use DES. -Carroll Kong 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6045t=5969 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Simulated SmartJack [7:6046]
I want to simulate a serial connection between my 3 2600 routers in my home lab. Each router has a T-1/CSU Module installed. Shouldn't I be able to connect them through a crossover cable, or do I need to simulate a SmartJack in another way? Maybe some other sort of PIN manipulation. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6046t=6046 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Simulated SmartJack [7:6046]
T-1 uses pins 12 and 45. Let's call one end A, the other B. Make a crossover cable that connects A1 to B4, A2 to B5, A4 to B1, and A5 to B2. If you don't have the tools to make cables, get two RJ-45 jacks. Create the crossover between them (back to back - using the punchdown slots). Use pliers or a thin screwdriver to force the wires in the slots. Not recommended for production networks! Use regular patch cables from the jacks to the routers. -Original Message- From: Malik Muhammad [mailto:[EMAIL PROTECTED]] Sent: Saturday, May 26, 2001 8:14 PM To: [EMAIL PROTECTED] Subject: Simulated SmartJack [7:6046] I want to simulate a serial connection between my 3 2600 routers in my home lab. Each router has a T-1/CSU Module installed. Shouldn't I be able to connect them through a crossover cable, or do I need to simulate a SmartJack in another way? Maybe some other sort of PIN manipulation. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6047t=6046 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT -- BGP scalability [7:5468]
Nice piece of writing, Howard. There is a point you make ( English commons ) which sounds an awful lot like democracy lasts only until the participants realize they can vote themselves privileges, at which point it turns quickly to anarchy paraphrased badly, I'm sure ) De Toqueville said something along similar lines -- that American democracy would end when the people realized they could vote themselves money. People always act in their own perceived best interest. That perception may be clueless. It may be well intentioned. There's some relevance here to certification. Sometimes, the most knowledgeable people don't do well on exams, because they see nuances in the potential answers of which the test writer wasn't even aware. The only time I know that an experienced, thoroughly clueful CID or CIT instructor failed the CCIE lab involved the instructor arguing with the proctor that the scenarios were insane, and that anyone who built a network that way in the real world should be summarily fired. Have you been wasting your time reading the NANOG threads on email != ftp and the related? Interesting only in that it seems to beg the issue. There is an art to reading NANOG, a more subtle art than reading USENET. With USENET, Godwin's Law is one way of telling when a thread has degenerated completely: assuming the thread has nothing to do with modern European history, Godwin's condition is true when one person refers to another as a Nazi. Some NANOG threads, especially dealing with sp*m*ing (don't know if that's a filter word), do, in fact, trigger the Godwin condition. Other threads will tend to die when Susan Harris or another MERIT staffer says ENOUGH! This seems to happen a lot with domain policy. Even with all that, NANOG does convey a tremendous amount of useful information. In the end, ease of use ( and therefore more bandwidth ) will win out. Limiting file xfer size will lose. Virus replication is not the result of Microsoft's evil intentions, but rather their very good intention of trying to make computer use as simple as toaster use. Long ago, at the internal GTE networking symposium (1980? 1981?) I defined electronic mail as a technology to lose the mail at the speed of light. The president of GTE, who was technical, rose and inquired then what about your own division's offering, Telemail? I thought for a moment, and answered Dr. Vanderslice, Oh. We lose it more slowly. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6048t=5468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Simulated SmartJack [7:6046]
Crossover cable, pins 1-2/4-5 crossed. 1 end needs to have the clock source set to internal (default is line). Make sure you select the same timeslots on both sides. You won't be able to connect all 3 routers unless one of them has 2 CSU's in it, of course. HTH, doctorcisco From: Malik Muhammad Reply-To: Malik Muhammad To: [EMAIL PROTECTED] Subject: Simulated SmartJack [7:6046] Date: Sat, 26 May 2001 21:13:45 -0400 I want to simulate a serial connection between my 3 2600 routers in my home lab. Each router has a T-1/CSU Module installed. Shouldn't I be able to connect them through a crossover cable, or do I need to simulate a SmartJack in another way? Maybe some other sort of PIN manipulation. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get your FREE download of MSN Explorer at http://explorer.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6049t=6046 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Simulated SmartJack [7:6046]
In article , Malik Muhammad wrote: I'm pretty sure I've seen this posed in the past so you may wish to check the archives. I found http://www.cisco.com/warp/public/471/75.html which describes the crossover cable for a T1 CSU/DSU which should work. I've never done this so hopefully someone with a little more lab background can chime in. Also see http://www.cisco.com/warp/public/471/59.html for clocking info. I want to simulate a serial connection between my 3 2600 routers in my home lab. Each router has a T-1/CSU Module installed. Shouldn't I be able to connect them through a crossover cable, or do I need to simulate a SmartJack in another way? Maybe some other sort of PIN manipulation. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6050t=6046 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: A suggestion when posting answers to questions. [7:6042]
I, for one, think that is an excellent idea. I read this site more than post, but I had to reply to this. Many times when reading something here, I wish there was just a little more information than what was given. It is hard to learn without some source. Jenn C = Original Message From Chris Rock = Can I make a suggestion that might help to improve the usefulness of this site? If someone is going to post an answer to a question on this web site, can they make sure that they post a reference where one can look up the answer / explanation? I've seen a number of answers to questions that either weren't correct, or missed the key points that are needed to understand the issue. If we post a reference to either a web page (Cisco TAC), or a page in a book (ie Comer Vol 1, pgs 120 - 125), we can garner enough material to truly understand the associated topic instead of just memorizing an answer that may or may not be correct. Thanks Chris FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Have a great day! Jenn Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6051t=6042 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Olicom switch [7:5815]
Is this legal ? Brad Ellis wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Try a later version of code. 4.1(3) should work. We have been loading that version of code on the Olicom's we've been selling. -Brad Ellis CCIE#5796 [EMAIL PROTECTED] Cisco gear: www.optsys.net goroupstudy.com wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello All - I just downloaded the Cat 3920 code 3.0(7) to an Olicom 8600. Now it gives me a message which says: FATAL SYSTEM ERROR: Unknown System Board ID It was my understanding (based on what I heard here) that this switch is Cat 3920 compatible. Anyone know a) how to break in/recover from this mess and/or b) what is a good image to use for the box? Im totally hosed, so any help is appreciated! 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6052t=5815 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: help --------------Pls ................OIR Error [7:6021]
Hi Here the detail for u i have ver 11.8 runnign on it Cisco Internetwork Operating System Software IOS (tm) 3600 Software (C3640-JS-M), Version 11.3(8), RELEASE SOFTWARE (fc1) Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Tue 02-Feb-99 14:13 by dschwart Image text-base: 0x60008918, data-base: 0x608E8000 ROM: System Bootstrap, Version 11.1(20)AA1, EARLY DEPLOYMENT RELEASE SOFTWARE (f c1) System image file is flash:c3640-js-mz.113-8, booted via flash cisco 3640 (R4700) processor (revision 0x00) with 49152K/16384K bytes of memory. Processor board ID 13831748 R4700 processor, Implementation 33, Revision 1.0 Bridging software. Regards Arun Sharma Chuck Larrieu wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Beat the hell out of me. In the past I have posted about problems with earlier 12.x codes, where if I plugged serial cables into a serial interface while the router was powered on, IP would not work, although IPX would. I've had people tell me I was an idiot, and this couldn't happen. But Pamela Forsythe told me she recognized the phenomenon. I've moved my routers onto various versions of 12.1 code, and have not seen the problem. Actually, I don't think I ever saw the problem with later versions of 12.0 code either. Still curious what IOS version you are running. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 8:02 AM To: [EMAIL PROTECTED] Subject: Re: help --Pls OIR Error [7:6021] hi yes i tried reloading the router with the cables attached and it worked .. thanks for the help but what could be the reason for that if i know it will be a help . Arun Sharma Chuck Larrieu wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Have you tried reloading the router with the cable attached? Or blowing away the X.35 config, reloading with the cable attached, then putting in the X.25 What version of IOS are you running? I have documented a couple of problems revolving around serial port cables with 12.0.4 or so. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Arun Sent: Saturday, May 26, 2001 3:58 AM To: [EMAIL PROTECTED] Subject: help --Pls OIR Error [7:6021] Hi I have router configured as X25 router .I have 2 slots in it with each having 4 serial ports on them.The problem is that when i connect the cisco provided cable just the cable to the administratively shutdown serial port it gives me error : %OIRINT:OIR Event has occured OIR_ctrl 50 oir stat 8F88 ( i have checked OIR it stands online insertion and removal but i could not find this particular error) and this also hangs the router i have checked the cable i can not do many thngs on the router as it is in live n/w ..Please help ..the router works well after i remove cable and restart the router . Any help will be appreciated Regards Arun Sharma 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6053t=6021 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Pass CCNA with 953, I have a lot of study stuff!! [7:6035]
hi i am preparing for ccna can u pls email me the stuff for that ...i know i won't be able to do the exchange ..but that will be a help to me thanks in advance Regarsd Arun Sharma killer wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a lot of studying material here for CCNA (over 2000 MCs and other notes) and MCSE W2K Core! If you have other studying material such as CCNP/CCIE/ MCSE W2K electives , pls email to me! I can exchange my material with you! FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6054t=6035 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Regarding dte and dce for x25 router--urgent [7:6055]
Hi i have a network like this ... device-dte--x25 int 1/2 dce.clockrate 64000 device-dcex25 int 2/3 dte i just wanted to know if two interfaces on router need to communicate will they need to act as same both dte or dce or it doesn't matter at all.Router will just route the packets Regards Arun Sharma Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6055t=6055 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Upload over console port. [7:5912]
But we can upload the IOS image from flash to tftp, thru Telnet session. Pls correct me if I am wrong Mohd. -Original Message- From: Hire, Ejay [SMTP:[EMAIL PROTECTED]] Sent: Fri, May 25, 2001 11:38 PM To: [EMAIL PROTECTED] Subject: RE: Upload over console port. [7:5912] You can't tftp across the console port, you have to tftp from something you have IP connectivity to. If you have to upload from the console, the command you want is (From Rom IOS) copy xmodem flash:yourfilename.bin Ejay Hire -Original Message- From: James Haynes [mailto:[EMAIL PROTECTED]] Sent: Friday, May 25, 2001 2:44 PM To: [EMAIL PROTECTED] Subject: Re: Upload over console port. [7:5912] As an aside, I've tried copy flash tftp using the console port connected to my PC and TFTPD32 running on the PC. I keep getting the error: #copy flash tftp Source filename []? c2600-is40-mz.120-4.T Address or name of remote host []? XXX.XXX.XXX.XXX Destination filename [c2600-is40-mz.120-4.T]? . %Error opening tftp://XXX.XXX.XXX.XXX/c2600-is40-mz.120-4.T (Undefined error) -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP James Haynes wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I've found various documents at Cisco and have seen discussion here about downloading an image to a router using the console port and xmodem. I haven't in my searches seen whether it is possible to upload images from the console port to a tftp server. If anyone has any information or can find a relevant link on CCO I'd appreciate it. -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6056t=5912 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ping not coming back. [7:6057]
Hi all, I have several routers running OSPF. One of them is connected to my network by a T-1 on its S/0 port. The E/0 port is connected to another network through a hub. The outside network is using Novell and is not OSPF. I have some PC's and printers directly connected to the hub. The problem: Ping timeouts when I try to ping those devices on the hub. I can ping the the S/0 and E/0 ports on the router. I can telnet into that router and ping all the devices attached to the hub. Devices on the hub can ping back into my network but I can not ping them. There are no access-lists configured on any routers. Any ideas? Thanks, Chris __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6057t=6057 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
