Donavan Fritz
3f6dfd3e88
Build flock Image / build (push) Has been cancelled
Cisco IOS rejects IPv6 BGP advertisements whose next-hop is link-local- only. BIRD2 was synthesising a link-local next-hop for kernel-learned routes whose dev had no via gateway (our anycast /128s). Symptom: v4 anycast worked (Cisco doesn't have the same constraint for /32s), v6 anycast didn't make it past crt001. - pkg/routing/bird/config.go: NodeBGP.LocalV6/LocalV4. Template now emits `local <addr> as <asn>` and `next hop self;` in the BGP channel for both families, mirroring Calico's `source address` + `next hop self` pattern. - pkg/agent/bird.go: localAddrSameSubnet picks an interface address on the peer's /64 or /24 to use as source. Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>