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I'm not 100% sure "gateway" is the correct term, here is an explination of what im trying to do.
We have a classroom LAN, which in turn connects (through the computer im trying to set up) to an intranet, which then connects to the internet.
My progress so far, i can see (meaning i can ping) the othe computers in the classroom, i also have internet access through this computer, however, the other computers in this classroom do not have internet access. From what my teacher has told me, the intranet uses DHCP. So eth1 is using DHCP while eth0 (the nic that connects to hub in our classroom) is using a static ip.
I have gathered that their are a variety of programs (from reading web sites) that can possibly fill the needed role, but i don't know how to use them or which one would be most applicable to this situation.
Any help much appreciated, thx!
PS: If i am to confusing or unclear, plz let me know what additional information i should provide.
PPS: Im a newb
A couple of questions. Do you want a firewall on this machine? Do you want to isolate it from the intranet and make you own subnet? Do you want to allow PCs in the classroom to get IP addresses from outside the classroom?
where 192.168.0.0 is the network address for the local LAN with a netmask of 255.255.255.0
Of course for this to work, you have to enable the appropriate kernel options; put simply, I just packet socket, the usual suspects needed for TCP/IP and every option under "IP: Netfilter Configuration" as a module(this is on a 2.4.20 kernel BTW).