> How to set hostname.iwn0 as default gateway Probably there is a better solution. Maybe someone with more knowledge of netstart can help. I'd try my luck with pf and create a natting rule to check for traffic leaving em0 that's not - for example - 192.168.1.0/24:
pass out on em0 from $int_net to ! $int_net received-on em0 nat-to iwn0 Didn't have the time to check this rule though.