7 May
2021
7 May
'21
11:37 a.m.
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?