> firewall дай запилить, таблицу маршрутов тоже хотелось-бы рихтануть

man jail
vnet    Create the jail with its own virtual network stack, with its own
             network interfaces, addresses, routing table, etc.  

git log -L:vnet:./usr.sbin/jail/jail.8
commit 3b31921eb1179730750d3f91afe80cd48a49aa95
Author: jamie <jamie@FreeBSD.org>
Date:   Wed Oct 20 20:42:33 2010 +0000
    Initial work on the new jail(8).  There are more features to add, and some
    cleaning up to do on existing features, but this is pretty much what the
    final product will look like.

> не? не подгорает?

Оно и видно )