Hi there!
I thought I knew this but after spending a couple of hours reading the manuals I understood that it's not so easy. Could someone please help me? Here's the situation: There's a server/router with Linux Slackware 8.1 on it. And a network of 25 PC's with Windows XP's which must go out into the internet through the server/router. I want to configure the router so that it could connect to the DSL line and so that other PC's could go to the internet through the server. Can anyone suggest how can I configure the router so that it's IP in the Local Network would be 172.16.0.1 and the netmask would be 255.255.254.0 The other PC's would be 172.16.0.2 172.16.0.3 and etc. How can I do this? Ohh, and the DSL is using a dynamic IP. Thanks very much in advance!

Hi,
well, you first set the ADSL in Slackware, see the ADSL HOWTO for documentation on how to do that. Second, edit /etc/rc.d/rc.inet1 and set NETMASK to the netmask you want (you can also configure the IP in that same file).
Enable ip forwarding with

echo 1 > /proc/sys/net/ipv4/ip_forward

And configure your firewall to masquerade the internal lan. You do that with:

iptables -A FORWARD -o ppp+ -j MASQUERADE

which means, masquerade any packet going out thru any ppp<something> interface (where <something> may be 0, 1, etc..
I think you are done with that.

-- Gway

Thank you very very very much.

C'mon, its been a pleasure !!

-- Gway