I think this may have had something to do with the way I was tagging packets. I had eth0 as a member of br0 and then a tagged interface br.120 on top of that. I switched it around so the tagged interface was directly on eth0 and it seems to be behaving itself now.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1167614 Title: DHCP server incorrectly handling VLAN tagged packets To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1167614/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs