FreeBSD router

[Verbeek, Maarten]

Hi,
 
i'm busy creating a a http-proxy server/router with FreeBSD 6.2, but
somewhere along the line i'm doing things wrong i think.
 
situation: network 172.45.x.x/12 -----FREEBSD ROUTER -----
192.168.3.x/16 ------ firewall.
 
The defaultroute will be the ip-adress of the firewall, being
192.168.3.1.
i won't be needing a firewall or NAT on the machine, since the only
traffic to the internet will be HTTP and that will be handled by the
proxy server.
 
But all the howto's handle firewalls and HTTP. Anyone knows a good page
with information on doing this without a firewall and NAT.
 
Kind Regards
 
Maarten Verbeek