On Fri, May 07, 2021 at 11:37:03AM +0000, Kenth Eriksson wrote:
OSPFv3 uses link-local addresses, while OSPFv2 uses regular addresses. Loopback has regular address (both IPv4 and IPv6) but does not have link-local address, so it is skipped by OSPFv3 iface scanning code. Perhaps it will work if you attach link-local address to it.
Correct, when I configured a LL address on the loopback interface it is picked up by bird. But does that make sense? A stub interface does not send packets, so why does it need a LL address?
Not really. It is just an unintended result of chosen implementation decisions, same as in unnumbered PtP thread: https://bird.network.cz/pipermail/bird-users/2021-May/015465.html -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@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."