I first posted this issue on the freebsd ml but it's probably more an issue to post there. I have the loopbacks `1.1.1.1` and `1.1.1.2` of 2 nodes distributed using OSPF: ``` filter ospfexport { if (source = RTS_DEVICE) then accept; reject; } protocol ospf v2 { tick 2; ipv4 { import all; export filter ospfexport; }; area 0 { stub no; interface "vlan1", "vlan2" { type ptp; cost 5; }; interface "lo1" { stub; }; }; } ``` `1.1.1.1` is set on the loopback: ```# ifconfig lo1lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> inet6 ::1 prefixlen 128 inet6 fe80::1%lo1 prefixlen 64 scopeid 0x9 inet 1.1.1.1 netmask 0xffffffff groups: lo nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> # birdc show route for 1.1.1.1BIRD 2.13 ready. Table master4: 1.1.1.1/32 unicast [ospf1 15:56:43.054] ! I (150/0) [1.1.1.1] dev lo1 ``` The distribution works OK and I can ping each others: ``` # route -n get 1.1.1.2 route to: 1.1.1.2 destination: 1.1.1.2 gateway: 10.3.1.1 fib: 0 interface: vlan2212 flags: <UP,GATEWAY,HOST,DONE,PROTO1> recvpipe sendpipe ssthresh rtt,msec mtu weight expire 0 0 0 0 9000 1 0 ``` But the IP of the loopback can't be used as BGP next hop in the following configuration: ```protocol bgp rr_par_ipv4 { local 1.1.1.1 as 65001; neighbor 1.1.1.1.2 as 65001; default bgp_local_pref 40; rr client; ipv4 { import all; export all; next hop self; }; }; ``` The source IP used as next hop is not 1.1.1.1 but the IP `10.3.1.2` of vlan1 used for the connection between 2 nodes: ``` # ifconfig vlan1vlan2212: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=680703<RXCSUM,TXCSUM,TSO4,TSO6,LRO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> ether 50:65:f3:8b:98:71 inet 10.3.1.2 netmask 0xffffff00 broadcast 10.3.1.255 inet6 fe80::5265:f3ff:fe8b:9871%vlan2212 prefixlen 64 scopeid 0xd groups: vlan vlan: 20 vlanproto: 802.1q vlanpcp: 0 parent interface: mlxen0 media: Ethernet autoselect (40Gbase-CR4 <full-duplex,rxpause,txpause>) status: active nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> ``` **Even if I force the next hop address (using `next hop address`) it still take the IP of the vlan. What's wrong?*** ``` $ bird --versionBIRD version 2.13 $ uname -nmr myhostname 13.2-RELEASE amd64 ``` Benoît