BIRD 1.4.0 (RtrB) has iBGP peer with (RtrC) that has route reflector originating prefix 10.0.2.0/24
RtrB ip is 10.1.1.1

RtrC ip is 10.1.1.2

adding  "gateway direct;" provides "Multihop BGP cannot use direct gateway mode"

I'm little bit confused , isn't it a whole purpose of "gateway direct;" to provide legacy functionality to iBGP peers?

I've tried changing next hop via import filter " bgp_next_hop = 10.4.4.4;"

Next hop of prefix in RtrB changed , however the prefix itself stayed "unreachable"

The only thing helped configuring static protocol record for 10.4.4.4, but this is not an option for production environment due to dynamic nature of prefixes and multiple next hops

Please advise