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

[David Freedman]

Yes, I came across this on an upgrade from SB to SRC1 on 7200
didn't work until I configured "ipv6 enable" and "ipv6 router isis" on
the loopback and then I was able to backtrack and do "passive int lo0"
in is-is to make it passive again,

I thought it was just me!

Dave.

Mark Tinka wrote:
> On Tuesday 16 September 2008 20:36:00 Frederic LOUI wrote:
> 
>> My version is : IOS 124-11.T2
> 
> We haven't tested other releases on these boxes yet.
> 
> 12.2(33)SXH3 does work on our SUP720-3BXL's, though.
> 
>> Did you try ISIS debug command in order to see what's
>> happening ? When you inject your loopback ?
> 
> We did; nothing came up - all other interfaces are added 
> into IS-IS with the exception of the Loopbacks.
> 
>> I record that there was some issues related to ISIS in
>> multi-topology environment.
> 
> Actually, we found MT very useful when dual-stacking v4 and 
> v6.
> 
>> "metric style wide" command 
>> was needed...
> 
> We use wide metrics by default on all our IS's. 
> 
>> and also the interface command "ipv6 enable" 
>> is sometimes mandatory. (depending on the IOS vesion)
> 
> We haven't had to do this for our v6 deployment (even when I 
> run v6 under 12.3 mainline at my previous employer).
> 
> However, we did try enabling this command without much 
> success in resolving this particular issue.
> 
>> Please fin herewith this mail a snipset of config related
>> to ISIS for IPv6:
> 
> Pretty straight forward.
> 
>> At the sounds like it is a issue with the IOS
>> version.
> 
> Agree.
> 
> Will work it and hope TAC can reproduce the issue.
> 
> Cheers,
> 
> Mark.
> 
> 
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> 
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