On Sun, Oct 11, 2020 at 02:13:19AM +0800, Wang Shanker wrote: > Hi, all > > In bird, BFD sessions are distinguished only by their peers' address, so if > multiple routing protocols request BFD session for the same neighbor, they > can share and be controlled by one session. Normally it won't be a problem. > However, it is not the case when it come to the IPv6 link-local addresses. > > Since fe80:: addresses are link-local, the same address on different > interfaces refers to different nodes. So when requesting BFD sessions for > neighbors with link-local address, the destination interface should also be > considered. > > This issue can be reproduced by the following configuration with the latest > commit in legacy branch, and a similar configuration with the latest commit > in master branch:
Hi (Noticed while looking for some missed / forgotten e-mails) Thanks for the bugreport, fixed here (with contribution from Sebastian Hahn): https://gitlab.nic.cz/labs/bird/-/commit/910adaa08bbd416288797505399ab47f990817e6 -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santi...@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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