From: Lachlan Kidd (lkidd@xxxxxxxxxxxxxxxxxxx)
Date: Sat May 12 2001 - 22:52:21 GMT-3
Hi All,
I think I know what's going on here on an EIGRP front anyway...
I often create a loopback to 1.1.1.1 on my routers to use for reverse telnet
(to devices attached to the aux port). If you do this on two routers, both
running EIGRP, they pick the same RID for the EIGRP process (even if the
network is not involved in EIGRP). This can cause the messages you see in
the debug. I would assume this would apply to OSPF as well. The only way to
fix it is to change the IP address causing the problem remove the process
and re-create it. Needless to say, I don't create loopbacks w/ the same IP
any more...<grin>. The /32 routes area normal part of the PPP establishment.
I think that 'no ip peer neighbor-route' will remove them.
Just a suggestion. HTH
Lachlan
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Beklik@aol.com
Sent: Sunday, 13 May 2001 11:12:AM
To: vijay.venkatesh@usa.net; arousch@home.com
Cc: Beklik@aol.com; ccielab@groupstudy.com
Subject: Re: Routing and EIGRP over DDR; strange behavior
Both IOS's are 12.0. I've been changing the configs in all possible ways:
physical, dialer profile, dialer map, dialer string, all with the same
problem (I was initially trying to do the FatKid, Dlsw lab, when I noticed
this)
Here's one strange thing I noticed as I'm working on this. On the two ISDN
routers, the remote BRI address would show up as directly connected with a
/32 (i.e IP address of BRI of R1 would show as directly connected on R2 and
vice versa, when you do :"show ip route"); the interfaces are configured
with
a /24 mask and that subnet also show up as directly connected in the routing
table. when you debug EIGRP you get "packet from ourselves, ignored"
In a message dated 5/12/01 8:35:06 PM Eastern Daylight Time,
vijay.venkatesh@usa.net writes:
> What versions of IOS are u running on either end of the isdn. Also can u
> post your configs ?
> Vijay
>
> Andrew wrote:
> >
> > Have you used the EIGRP debug commands to see exactly what the problem
> is??
> >
> > At 06:38 PM 5/12/01 -0400, Beklik@aol.com wrote:
> > > All,
> > >
> > >I have run into a wierd issue with running routing protocols over DDR.
I
> > >have two routers connected via ISDN. Initially, I wanted to run
EIGRP,
> > >which brings up the circuit, but then the routing updates don't get
> > >exchanged, and the neighbering relation doesn't get established. When
I
> used
> > >RIP or IGRP between the routers, then things started to work but still
> not
> > >normally. The routers will exchange routes, but will not update. It
> will
> > >take a "clear ip route *" for the routes to get exchanged again. The
> ISDN
> > >circuit is constantly up due to EIGRP hello packets, and all IP is
> defined as
> > >interesting traffic. Has anyone encountered anything like this
before???
> > >
> > >thanks for your help.
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