OSPFv3 doesn't announce loopback IPv6 network

Ondrej Zajicek santiago at crfreenet.org
Sun Dec 11 18:50:52 CET 2022


On Sun, Dec 11, 2022 at 06:30:46PM +0100, Bernhard Ehlers via Bird-users wrote:
> I want to use OSPF with BIRD v2.0.10 on Linux.
> 
> That works well, except that the IPv6 network of the lo interface isn't
> announced on OSPFv3. The IPv6 networks of the ethernet interfaces are
> announced as well as the IPv4 networks of all interfaces (ethernet and lo).
> The only missing is the IPv6 network of lo.

Hi

Due to some implementation details, OSPFv3 ignores interfaces that do not
have link-local addresses (even if they are just stub). Just use:

ip address add fe80::1/128 dev lo

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."


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