From: Eric Sineath (esineath@xxxxxxxxxxxx)
Date: Tue Apr 27 1999 - 09:56:43 GMT-3
Yes. The Router ID (RID) is the highest IP address on the router, or the
loopback if present. In practice, it is best to use loopbacks whenever
possible, as they are always up unless the router itself goes down. However,
for the purposes of the Lab, you may or may not be allowed to use a loopback
address.
Eric Sineath
CCIE #4504
Director of Telecommunications
Landstar System, Inc.
-----Original Message-----
From: Derek Fage [mailto:Derekf@itexjsy.com]
<mailto:[mailto:Derekf@itexjsy.com]>
Sent: Tuesday, April 27, 1999 4:01 AM
To: 'ccielab@groupstudy.com'
Subject: IP config to assist in troubleshooting
Hi there,
I was looking at the troubleshooting scenarios currently on
www.ccieprep.com <http://www.ccieprep.com>
and have a question for the group.
One of the scenarios was with OSPF and a virtual link that
is no longer
working after lunch. It turns out that what happens is that
one of the
routers has been rebooted which caused the router id to
change. This was
becuase the router id was set when OSPF was started, and
then another
interface was configured for IP with a higher address so
that this became
the router-id when the router was rebooted.
My question is regarding how to assign IP addresses when
initially
configuring the lab. Is it better to configure loopback
addresses to stop
this sort of thing happening ?
Derek...
***********************************************************************
Any views expressed in this message are those of the
individual sender,
except where the sender states them to be the views of Itex
Limited.
This email is intended only for the individual or entity to
which it is
addressed and contains information that is private and
confidential. If
you are not the intended recipient you are hereby notified
that any
dissemination, distribution or copying is strictly
prohibited. If you
have received this message in error please delete it
immediately and
advise us by return e-mail to administrator@itexjsy.com
<mailto:administrator@itexjsy.com> .
***********************************************************************
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:21:36 GMT-3