Public / private IP addresses
Hi all,
I've dealt with quite a few LANs over the years. I'd like to try
something that I never have done before...
I work with ADSL providers who allocate 5 public IP addresses (sometimes
1) to a connection. If I have a LAN of, say, 20 workstations, I can use
NAT, and give them private addresses - no problem.
I usually have an ADSL router / modem, hooked up to a Linux box
configured as a bridging firewall, which connects to a switch.
But if they wanted to run a public email server as well, clearly that
needs a public IP address. Fine, but how does the routing aspect work?
Do I need to ditch the bridging configuration on the firewall and
reconfigure it as a router with 3 NICs? One connected to the WAN, one
to the private LAN switch, and one to the public server(s) switch?
I like the bridging firewall as it's such a drop-in solution, but I'm
not sure if it would work with 3 NICs.
A
--
Please don't CC me. Also _please_ read the following before posting:
Documentation - http://www.debian.org/doc/
FAQ - http://www.debian.org/doc/FAQ/
Install manual (i386) - http://www.debian.org/releases/stable/i386/install
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