On 29/01/2021 23:32, Bastien Durel wrote:
Le 29/01/2021 à 17:44, Olivier Cherrier a écrit :Hi,I'm trying to setup OSPF on a working Wireguard VPN using 6.8 amd64 machines. This is what I get: # ospfd -dvvv id = "172.26.1.1" startup kr_init: priority filter enabled orig_rtr_lsa: area 0.0.0.0 orig_rtr_lsa: stub net, interface wg0 if_fsm: event UP resulted in action START and changing state for interface wg0 from DOWN to P2P send_packet: error sending packet to 224.0.0.5 on interface wg0: Network is unreachable send_hello: Network is unreachable [...] # ifconfig wg0 wg0: flags=80c3<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1420 index 23 priority 0 llprio 3 wgport 33222 wgpubkey XXX wgpeer YYY wgpka 23 (sec) wgendpoint A.B.C.D 31502 tx: 4317366604, rx: 382870060 last handshake: 47 seconds ago wgaip 192.168.1.0/24 wgaip 172.26.1.3/32 wgpeer WWW wgpka 23 (sec) wgendpoint E.F.G.H 15776 tx: 609183380, rx: 1523684 last handshake: 1 seconds ago wgaip 172.26.0.0/24 wgaip 172.26.1.2/32 groups: wg inet 172.26.1.1 netmask 0xffffff00 broadcast 172.26.1.255 Is it possible to use a wg(4) interface for ospfd(8)? Thank you, Best.Hello.It is possible, I use it myself. You have to allow multicast address on wg(4) interface(s):225.0.0.5 for all OSPF routers 224.0.0.6 for all DR/BDR (I use wgaip 0.0.0.0/0, so my config is not relavant for you) Regards,
Sorry to jump in, but does this also add routes for 225.0.0.{5,6} via wg0?
If this is a case, this would be a problem for multiple interfaces.
Or maybe wg(4) handles multicast differently than normal IP
thanks
G
