Preparing to run ferrix next to BIRD on the production router.
- build: the config proto is now parsed in pure Rust, so building needs no
`protoc` binary. It previously worked only where one happened to be
installed; the Dockerfile in this repo could not have built.
- peers gain `local_address`, the source IP for connections we open (and
therefore the next hop we advertise). When both speakers share a host
the OS would otherwise pick an arbitrary local address and the peer,
which identifies us by address, would refuse the session. Address-family
mismatches are rejected at config load; an address the host lacks shows
up as the peer's backoff reason.
- docs/lab/prod/on-router: static musl cross-build instructions, config,
hardened systemd unit (unprivileged, SIGTERM gives BIRD a Cease),
loopback addresses for networkd, the BIRD stanza for a same-host
multihop session, and reverse-proxy examples with TLS and a password,
since the API has no authentication.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
