Created attachment 144191 [details]
example creating vlan
I use supervlan (ip-unnumbered) and set net.link.ether.inet.proxyall to 1.
When I create new vlan, it sets to 0.
FreeBSD 9.2-RELEASE-p3 amd64
I reproduced this on 9.3-STABLE, but I could not reproduce it on 10.3-STABLE or 12-CURRENT, so it seems to be fixed in 10.x. Can you update this system to 10.x? I would strongly recommend that, since 9.x will be End-of-Life in less than 5 months.