Use zebra option ip nht resolve-via-default as default option
Next Hop tracking route via default route allows not have a neighbor route in IGP when it is not directly connected neighbor (ebgp multihop)
vyos@r14# vtysh -c "show run zebra" Building configuration... Current configuration: ! frr version 8.3 frr defaults traditional hostname r14 log syslog log facility local7 agentx service integrated-vtysh-config ! ip nht resolve-via-default ! end
@Viacheslav Do you just want this option added to the zebra config, or you it also be possible to enable/disable this via the conf mode?
I prefer to get this option configurable if it is possible
For IPv6 and VRFs - nice to have.
As it is used in BGP, I see something like set protocols bgp parameters next-hop-track resolve-via-default
Or, as it was mentioned in T3500
set routing-options next-hop-track resolve-via-default but it will be an additional node with only one option, needs to think
set system ip(v6) nht
@c-po @dmbaturin what do you think?
While reading the FRR docs I see it is only used in BGP and nowhere else. That would make something like set protocols bgp parameters next-hop-track resolve-via-default logical.
set protocols bgp parameters nht-resolve-default or something, since there are no other NHT options as far as I can see, unless the ip nht $protocol route-map stuff is going to be implemented as well.
I am more +1 on set system ip(v6) nht because what happens if out of random another protocol will support this? Also it's a zebra option as you described, not a bgpd option.