i have my main office with a couple of lans and a remote office with one lan. Both are connected with an openvpn bridge that works.
From one side or the other all interfaces can talk to each other but, if a user is connected to the main office's vpn (192.168.176.0) it can't ping a machine on the remote site's network (192.168.185.0)
I've tested with the ping from pfsense, all interfaces can ping remote site except the openvpn.
I checked the routing logs and found "HTTP peer 192.168.176.2:56491 is not from a LAN, closing the connection"
The only other problem i have with the interoffice bridge, is the speed. main site has a 200/30 internet link and remote office has 1000/500 link. I can barely get 1MB/s when transferring a file.
Any help would be appreciated