I have been trying to turn my slackware linux computer into a router/firewall. I have been going by the guide http://www.linuxdoc.org/HOWTO/IP-Mas...WTO/index.html . I set up their script, made sure it ran without errors, and added it to my local script. I also set eth1 as 192.168.0.1 and left my eth0 to get its ip from dhcp (since its the card connected to the net). After I had all that set, I plugged the computer into my cable modem, and then the uplink part of my hub. The computer got net connection on eth0 and its ip 192.168.0.1 on eth1. Then I plugged another one of my computers into the hub, 1 port past the uplink (where my linux computer is plugged in). I set the ip on the computer as 192.168.0.2, and the gateway as 192.168.0.1, and mask as 255.255.255.0 . For some reason, it wasn't able to ping 192.168.0.1 . After that, I turned my hub from uplink to normal, and then it was able to ping 192.168.0.1 but still didnt have net access. Im really confused now....

Suggest you get your LAN working properly while disconnected from the cable modem. Ensure that all local machines can ping each other. Once you are certain that the local network is working, then you can add the extra variable of internet connectivity. That way you can easily determine if the problem is in your LAN configuration, or internet connection. Please post back your findings if you need more help.

well, when I have my hub turned on switch, they dont seem to be able to ping each other. Once it is off switch and on normal though, and I have staticly set the ips of the machines on the network, they are able to ping each other... any idea why that happens?