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Multihop IPv6 BFD is unconfigurable
Needs testing, NormalPublicBUG


IPv6 BFD is enforcing a requirement for a source address and interface which is incorrect and is incompatible with the multihop option making it impossible to configure IPv6 multihop BFD peers (routed dummy interfaces in this case).

I can manually configure FRR with multihop and a source address and the BFD peering comes up seemingly without issue.


Difficulty level
Unknown (require assessment)
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Perfectly compatible

Event Timeline

bmhughes created this task.Jan 7 2020, 1:32 PM
syncer changed the task status from Open to Needs testing.Jan 7 2020, 1:43 PM
syncer assigned this task to zsdc.
syncer triaged this task as Normal priority.
pasik added a subscriber: pasik.Jan 7 2020, 2:46 PM

Seems to be a simple fix so i've submitted a PR: