From: Yakout esmat (yesmat@xxxxxxxxxxxxxx)
Date: Sat Jul 13 2002 - 07:25:37 GMT-3
When you have secondary ip address running RIP or IGRP/EIGRP you will need
to disable ip split horizon on that interface, otherwise the secondary
address will not be advertised.
In your wcenario: when you ping from R2, source address is 172.19.35.0,
which is known by R1, that's why you are getting responce.
When you ping from R1, source address is 192.168.10.0, which is not known by
R2 hence not getting any responce.
Try to disable ip split horizon on ethernet interface on R1 and see what
happens, it should work.
HTH
Yakout
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Matt Mullins
Sent: Saturday, July 13, 2002 4:25 PM
To: ccielab@groupstudy.com
Subject: Ethernet Secondary Address and ping/Rip
I am trying to do the following:
Ping from R1 to R2 and have R2 learn rip routes via R1
R1--------Ethernet--------R2
Config router 1
interface Ethernet0
ip address 172.19.35.15 255.255.255.128 secondary
ip address 192.168.10.33 255.255.255.240
Rip is also configured
IOS Version 12.1(5)T9
Config router 2
interface Ethernet0
ip address 172.19.35.2 255.255.255.128
Rip is also configured
IOS Version 12.2(1d)
I can ping from router 2 to router 1 no problems. R1 also learns routes
from
R2 via rip no problems.
Problem:
I cannot ping from R1 to R2 or to any subnets off of R2. The routes are
being
learned via rip but they are not pingable. If I turn on an IP Packet Detail
I
get the following output on R2 while pinging from R1
00:42:47: ICMP type=8, code=0
00:42:47: IP: s=172.19.35.2 (local), d=192.168.10.33, len 100, unroutable
00:42:47: ICMP type=0, code=0
00:42:49: IP: s=192.168.10.33 (Ethernet0), d=172.19.35.2 (Ethernet0), len
100,
r
cvd 3
00:42:49: ICMP type=8, code=0
00:42:49: IP: s=172.19.35.2 (local), d=192.168.10.33, len 100, unroutable
00:42:49: ICMP type=0, code=0
00:42:51: IP: s=192.168.10.33 (Ethernet0), d=172.19.35.2 (Ethernet0), len
100,
r
cvd 3
00:42:51: ICMP type=8, code=0
00:42:51: IP: s=172.19.35.2 (local), d=192.168.10.33, len 100, unroutable
00:42:51: ICMP type=0, code=0
00:42:53: IP: s=192.168.10.33 (Ethernet0), d=172.19.35.2 (Ethernet0), len
100,
r
cvd 3
Should this work?
I can make it work by configuring R2 as follows but did not think this was
required
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