https://forums.freebsd.org/threads/ipfw-and-nat-on-7-0-without-recompiling-kernel.3821/
IPFW and NAT on 7.0 without recompiling kernel? | The FreeBSD Forums
Hi! I have a openVPN server on a FreeBSD 7.0 server and it works great, but I want to make all my traffic go trough the VPN when I'm connected to it, and...
ipfwnatwithoutrecompilingkernel