RE: Help with EIGRP routing problem.

From: OhioHondo (ohiohondo@columbus.rr.com)
Date: Mon Dec 23 2002 - 02:23:45 GMT-3


Lo

I think Edwin is on to something here. I've gotten the same message from
Ethernet interfaces from 2 different routers on the same vlan that have
different IP addresses.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Wargo, Edwin
Sent: Sunday, December 22, 2002 11:51 PM
To: 'Lo Whitfield '; 'ccielab@groupstudy.com '
Subject: RE: Help with EIGRP routing problem.

Lo,

Do you happen to have an Ethernet interface also configured on R5? I have
seen this before if both Ethernet interfaces are in the same VLAN but are
part of two different subnets. Also, I've seen this in a lab environment
when they are both connected by the same hub - those were the days :)

Here's a CCO article explaining the message:

http://www.cisco.com/warp/public/103/15.html

HTH,
Edwin

-----Original Message-----
From: Lo Whitfield
To: ccielab@groupstudy.com
Sent: 12/22/02 10:16 PM
Subject: Help with EIGRP routing problem.

I keep getting the message "Neighbor 137.20.40.17 not on common subnet
for
Ethernet0" when on Router 5. How do I resolve this error message.
Router 4 is connect via of frame-Relay to R5. On Router 4, I have an
ethernet
with IP 137.20.40.17/28 and S0: 137.20.200.18/28. On router 5 I have
have two
sub-interface s0.1:137.20.100.34/27 and s0.2:137.20.200.17/28. It's not
a
frame-Relay issue because I can ping between the routers. Once I added
all
the interfaces to EIGRP process, the error message above appeared. What
causes this message and how can I fix it? Thanks in advance for your
help

Lo
.
.
.



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