[RFC] Unnumbered BGP automatic peering based on IPv6 ND

[Tore Anderson]

Den 17.11.2025 17:06, skreiv Molly Miller via Bird-users:
> There's some prior art in other routing implementations which you might
> be interested in looking at. FRR already has similar functionality for
> automatic peering via IPv6 link-local addresses, as does Nokia's SR
> Linux platform (there may be others, but those are the ones I know).

Another point worth mentioning is that BGP updates containing only 
link-local next-hops aren't properly standardised at the moment, so 
there is no guarantee that two implementations will interoperate well.

There is an active effort to fix this problem though, see 
https://datatracker.ietf.org/doc/draft-ietf-idr-linklocal-capability/.

Tore