I had this exact issue while virtualbox had a guest network adapter bridged to the external interface that the FreeBDS bridge0 interface was bridged to. If I shutdown the VMs, ARP magically started working bidirectionally, and after restarting the VMs it failed again.
My fix was eventually to just have 2 external NICs; one exclusively for the virtualbox systems. I have no idea if you have a virtualbox guest present, but if so that was my fix. The issue occurred on both igb and re NICs. -Joseph On 2019-07-08 12:13, Dan Lists wrote: > I have a server running FreeBSD 11.2 that I am wanting to use as a bridged > firewall. I have it set up and it mostly works. The problem is that ARP > replies are not being forwarded from the outside interface to the inside > interface. It appears to be working in the other direction. I see the > ARP request go out on the outside interface and the reply arrives back at > the outside interface. The ARP reply is never getting to the bridge or to > the inside interface. > > The firewall server and the device behind it are in ESX. I think I've > worked all the ESX issues out. When I manually add an ARP entry everything > works. I've done this before with a physical server running FreeBSD 8.4 > and it works as expected. The differences are physical vs virtual, and > 8.4 vs 11.2. > > I'm at a loss as to why it is not working. I've searched the web and > found noting. If anyone could offer suggestions on how to fix this or > begin to debug it I would greatly appreciate it. > > Thanks, > > Dan > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"