When I set the system up everything is fine, until I plug both eth0 and eth1 in. eth0 is the LAN, eth1 is for the pppoe dsl connection. From the router, after configuration, I can ping say www.cnet.com just fine. But I cannot ping my local admin pc's ip. And from the local admin pc I cannot ping the firewall. If I unplug eth1 and restart the systems then I can connect via https and everything is fine. Until I plug eth1 in. eth1 seems to work fine as it connects and from the firewall I can ping outside, and eth0 seems to work as I can ping inside. It's just when they are both connected that the two internal pcs cannot see eachother.
The firewall is 192.168.21.21
The admin pc is 192.168.21.1
Both are on 255.255.255.0
The admin pc has the firewalls ip as a gateway
I probably left out a lot of information so please ask if you need more. I have been trying to get this to work for days.
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