More Friday Follies [7:29659]
I was able to get tunnels with secondary addresses to work. Config looked like this : lo0 172.16.80.1/27 --R1--162.16.1.x/27 --R3--172.16.20.x/28 --R4--172.16.50.x/28 --R5--E0 172.16.100.5/28 lo1 172.16.80.33/27--R1-- IGRP/OSPF Redist was at R3. 2 tunnels between R3 and R4 for the 2 .80 subnets on R1 with /28 mask. Tunnel source and dest inside the .80 subnet. Works great; can ping from R5 to both 80.1 and 80.5. IGRP routes appear as they should on R5. Found a good reference on CCO re: split horizon and IGRP/RIP w/ secondary addresses. http://www.cisco.com/warp/public/105/41.html Regards, Gregg Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29659t=29659 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: More Friday Follies [7:29659]
Whoops.. R1 to R3 is 172.16.1.x not 162.16.1.x Gregg Malcolm wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I was able to get tunnels with secondary addresses to work. Config looked like this : lo0 172.16.80.1/27 --R1--162.16.1.x/27 --R3--172.16.20.x/28 --R4--172.16.50.x/28 --R5--E0 172.16.100.5/28 lo1 172.16.80.33/27--R1-- IGRP/OSPF Redist was at R3. 2 tunnels between R3 and R4 for the 2 .80 subnets on R1 with /28 mask. Tunnel source and dest inside the .80 subnet. Works great; can ping from R5 to both 80.1 and 80.5. IGRP routes appear as they should on R5. Found a good reference on CCO re: split horizon and IGRP/RIP w/ secondary addresses. http://www.cisco.com/warp/public/105/41.html Regards, Gregg Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29663t=29659 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: More Friday Follies [7:29659]
Why did you need two tunnels? It seems that you need one tunnel for each mask length but you mention two tunnels for two /28 prefixes. How did that work out? thanks, John Gregg Malcolm 12/19/01 11:26:29 AM I was able to get tunnels with secondary addresses to work. Config looked like this : lo0 172.16.80.1/27 --R1--162.16.1.x/27 --R3--172.16.20.x/28 --R4--172.16.50.x/28 --R5--E0 172.16.100.5/28 lo1 172.16.80.33/27--R1-- IGRP/OSPF Redist was at R3. 2 tunnels between R3 and R4 for the 2 .80 subnets on R1 with /28 mask. Tunnel source and dest inside the .80 subnet. Works great; can ping from R5 to both 80.1 and 80.5. IGRP routes appear as they should on R5. Found a good reference on CCO re: split horizon and IGRP/RIP w/ secondary addresses. http://www.cisco.com/warp/public/105/41.html Regards, Gregg Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29666t=29659 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: More Friday Follies [7:29659]
John, First off I noticed many errors in my lame schematic. I was able to ping both 80.1 and 80.33. These are the 2 loops on R1 (OSPF router). There weren't 2 tunnels, there were two secondary address instead (sorry, but I was trying to remember from Sat). Need a secondary for each /28 subnet that you want to see on R1 (even tho R1 has /27's). Secondary addresses were inside the 80 subnet (not the tunnel source and dest as I said. Shows how bad my memory really is). I added R5 just to make sure that the advertisements would go beyond the tunnel (to prove that it's really an IGRP route). I don't see the stability prob that you have spoken of. Here is the important stuff : On R3 interface Tunnel0 ip address 172.16.80.3 255.255.255.240 secondary ip address 172.16.80.34 255.255.255.240 secondary ip address 172.16.1.33 255.255.255.240 tunnel source Serial1 tunnel destination 172.16.20.4 Works fine. I really wish someone would verify it for me. I'm a little leery after seeing Chuck's post. Can send you the complete configs of all 4 routers if you'd like. Gregg John Neiberger wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Why did you need two tunnels? It seems that you need one tunnel for each mask length but you mention two tunnels for two /28 prefixes. How did that work out? thanks, John Gregg Malcolm 12/19/01 11:26:29 AM I was able to get tunnels with secondary addresses to work. Config looked like this : lo0 172.16.80.1/27 --R1--162.16.1.x/27 --R3--172.16.20.x/28 --R4--172.16.50.x/28 --R5--E0 172.16.100.5/28 lo1 172.16.80.33/27--R1-- IGRP/OSPF Redist was at R3. 2 tunnels between R3 and R4 for the 2 .80 subnets on R1 with /28 mask. Tunnel source and dest inside the .80 subnet. Works great; can ping from R5 to both 80.1 and 80.5. IGRP routes appear as they should on R5. Found a good reference on CCO re: split horizon and IGRP/RIP w/ secondary addresses. http://www.cisco.com/warp/public/105/41.html Regards, Gregg Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29670t=29659 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
