Dear list,
I've run into a problem with OSPFv3 on the router which was manually configured
with the same IPv6 link-local address on several OSPF-enabled interfaces, say
fe80::1 on all interfaces. Well, that was 4 years ago and almost forgotten by
now. Today, I have run into a similar issue on another vendor's equipment --
OSPF declares a valid and operational neighbor down when some other non-OSPF
interface with the same link-local address (fe80::x for example) fails (?).
"Address fe80::x is not ready", he says.
It looks a *bug* to me. OSPF should not have a problem if the same link-local
addresses are used on different interfaces. These addresses are only sent in
Link LSAs (Type 8) and do not appear in any others. And they always come in
pairs - interface/address.
Workaround is rather simple: use different link-local addresses on IPv6-enabled
interfaces and you are safe. But, nevertheless, I think using same link-local
pairs on links should not get you into any trouble, right?
Kind regards,
Matjaž
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Matjaž Straus Istenič, Arnes
[email protected]
Tel: +386 1 4798877 Mob: +386 40 200403 Fax: +386 1 4798878
MS6745-RIPE PGP 490F3B4F 2009-10-21
Fingerprint = 6172 7BF8 B0B7 1F09 47B3 AFA3 0946 1701 490F 3B4F
