[c-nsp] IS-IS for IPv6: Passive Loopback Interface Address Not Propagated - Update!

[David Freedman]

Yes, this is exactly what happened to me, I was converting a node, 
I had to remove it from passive and re-make it passive again to make it work, 
thanks for getting the bug details.

Dave.

------------------------------------------------
David Freedman
Group Network Engineering 
Claranet Limited
http://www.clara.net



-----Original Message-----
From: Mark Tinka [mailto:mtinka at globaltransit.net]
Sent: Sat 9/20/2008 16:27
To: cisco-nsp at puck.nether.net
Cc: David Freedman
Subject: Re: [c-nsp] IS-IS for IPv6: Passive Loopback Interface Address Not Propagated - Update!
 
So just an update on this issue; it turned out to be a bug. 

Bug ID CSCsu67637 has been filed.

The problem basically occurs if a v6 address is applied to 
the Loopback interface ALREADY configured 
with 'passive-interface Loopback0' under IS-IS (perhaps 
from a v4 deployment).

The workaround is to remove the 'passive-interface 
Loopback0' after the v6 address is applied, and then 
re-enter it.

This workaround survives reloads, as the v6 address would 
already exist on the Loopback interface prior to the IS-IS 
process initializing.

Cheers,

Mark.