[c-nsp] isis routing problem

[Oliver Boehmer (oboehmer)]

Arne
> 
> Can someone tell me what might be wrong. I have a router connected
with 2
> neighbors ( R2 ).
> 
> Setup.:          - R0 - R1 - R2 - R3
> 
> The isis routing process  on R2 don't see any L2-routes from R1, but
R1 has
> L2 routes.
> R2 can se L2 routes from R3, and R1 an see L2 routes from R0. The
three
> routes R0, R2 & R3 has a domain passwd on the isis process, but R1
hasn't.
> Can this  miss configuration do this, I thought that the password
protected
> the process full.

in general, IOS ISIS routers configured without domain-password (or
without area-password) do not check authentication on LSPs they receive,
so it expected that R1 knows about R{0|2|3}'s routes, but R{0|2|3}
discard R1's LSPs as they don't contain any authentication info.

	oli