IPv6: IS-IS or OSPFv3
mtinka at globaltransit.net
Tue Dec 30 18:21:41 CST 2008
On Wednesday 31 December 2008 03:14:13 am Roque Gagliano
> at least in my case, I did turned ISISv6 in one WAN
> interface where the router on the other side (a Cisco)
> did not have the "ipv6 unicast routing" general command
> on and the isis adjacency went down completely. So, yes
> that was an issue.
One of the things I'm hoping Cisco can fix in not-too-
distant future releases of IOS.
> But if you enabled IPv6 in both ends
> first and then one interface at the time, it worked.
What we saw on our test segment was that v4 adjacencies were
not torn down by merely enabling IS-ISv6 on an interface
(given that JunOS enables IS-ISv6 by default when IS-IS is
enabled on the router; in IOS, you have to explicitly turn
v4 adjacencies were torn down *after* an IPv6 address was
added to the interface. We witnessed this issue under both
IOS and JunOS.
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