Transparent proxy/nat server using DHCP.

[Nick]

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-
> questions at freebsd.org] On Behalf Of Jesper Wallin
> Sent: Sunday, April 18, 2004 7:02 AM
> To: freebsd-questions at freebsd.org
> Subject: Transparent proxy/nat server using DHCP.
> 
> Heya..
> 
> My ISP allow me to have 5 dynamic ip addresses. Yet, it's locked to the
> MAC address (i
> think) .. currently my network look like this:
> 
> [ Internet ]----[ 16-ports Unex Switch ]----[ my network ]
> 
> ..and in the local network, I have 3 servers and my two workstations. My
> idea was to put
> one server "infront" of all other computers, like:
> 
> [ Internet ]----[ FreeBSD ]----[ 16-ports Unex Switch ]----[ my networks ]
> 
> ..and have the FreeBSD server holding all 5 ips from my ISP and then
> NAT/Forward it to
> the rest of the network.. like a transparent firewall/logging server. Like
> having 3 of
> the ips going to my 3 servers.. and have another IP for NAT:ing the two
> workstaions
> which uses a local IP range.. or something.
> 
> My porblem is to get the FreeBSD server request 5 ips on the same NIC
> using the DHCP
> protocol. Is it even possible?
> 
> 
> Regards,
> Jesper 'Z3l3zT' Wallin
> 
> 

You could always set up the FreeBSD computer as filtering bridge
http://www.freebsd.org/doc/en_US.ISO8859-1/articles/filtering-bridges/index.
html


Nick Radonicich
nick at cogeco.ca