Problem: FRR defaults to 'enforce-first-as' but Vyos assumes the opposite (aligning with Juniper). Usual use case for turning this off is when connecting to Route Servers.
Backport from Rolling:
--- bgpd.frr.j2 +++ /usr/share/vyos/templates/frr/bgpd.frr.j2 @@ -93,8 +93,10 @@ {% if config.enforce_first_as is vyos_defined %} neighbor {{ neighbor }} enforce-first-as +{% else %} + no neighbor {{ neighbor }} enforce-first-as {% endif %} {% if config.strict_capability_match is vyos_defined %}