IP-Less Bridge

Ok im hoping someone here can tell me how to implement something. I work on
the side for a small company. I want to set up an ip-less bridge (openbsd)
to connect their internal network and the internet. They connect to the
internet with a cable model (shared) that obtains ip address dyamically. Now
of course since they don't have a static ip for their internet connect then
i must use some type of NAT/Routing device. They really can't afford a high
end router and unfortunatly with the simple cable routers you buy you can't
turn off filtering. I want the nat device to allow bilateral traffic and not
stop any packets. Can you guys give me some advice on how to implement this
ip-less bridge?

thanks,
Brent

A bridge by definition is IP less becaues it is a layer 2 transport device.
Since the internet routing operates at layer 3, internet access requires IP
addresses to be assigned to each host for end-to-end connectivity. In order
to have internet access with 100% 2-way traffic, you need 1 addressable
internet IP for every computer requiring this functionality. This requires
a block of Internet Addressable IPs to be assigned from the ISP which is
almost always static.

Simple cable routers that you get from the local cable ISP can have
filtering turned off. If you are talking about inbound filtering, NAT does
that by design. If you don't want to ues NAT, you have to ues one internet
addressable IP per computer that requires internet access.

"Brent" <(E-Mail Removed)> wrote in message
news:e62MP%(E-Mail Removed)...
> Ok im hoping someone here can tell me how to implement something. I work
> on the side for a small company. I want to set up an ip-less bridge
> (openbsd) to connect their internal network and the internet. They connect
> to the internet with a cable model (shared) that obtains ip address
> dyamically. Now of course since they don't have a static ip for their
> internet connect then i must use some type of NAT/Routing device. They
> really can't afford a high end router and unfortunatly with the simple
> cable routers you buy you can't turn off filtering. I want the nat device
> to allow bilateral traffic and not stop any packets. Can you guys give me
> some advice on how to implement this ip-less bridge?
>
> thanks,
> Brent
>