From: Devender Singh (devender.singh@xxxxxxxxxxxxxx)
Date: Wed May 16 2001 - 04:24:31 GMT-3
Excellent reading.
I think isis works with ip addresses assigned. Given a choice I will put the
IP addresses on, because they are better for troubleshooting.
As if this is less scary, it goes on to say
"Note :
Using an unnumbered serial line between different major networks (or
majornets) requires special care. If at each end of the link there are
different majornets assigned to the interfaces you specified as unnumbered,
then any routing protocol running across the serial line must not advertise
subnet information."
For rip and IGRP this will be natural behaviour. But what about isis, ospf,
eigrp etc. I am not clear of this concept.
Devender Singh
BE(Hons), CCNP
IP Solution Specialist
-----Original Message-----
From: Ken Yeo [mailto:kenyeo@email.com]
Sent: Wednesday, 16 May 2001 2:26
To: ccielab@groupstudy.com
Subject: ISIS Unnumbered interface
What do you think about below statement. Is that means if the lab
instruction didn't specify to use specify ip address on serials. We should
use ip unnumbered when implementing ISIS?
http://127.0.0.1:8080/cc/td/doc/product/software/ios120/12cgcr/np1_r/1rprt2/
1ripadr.htm#xtocid9053353
If you are configuring IS-IS across a serial line, you should configure the
serial interfaces as unnumbered. This allows you to conform with RFC 1195,
which states that IP addresses are not required on each interface.
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