iptables and RH 7.2

[Jeremy Evans]

����������� I have RH 7.2 running with iptables 1.2.4-2 . The box has 4 nic’s, 1 external 3 subnetted internal. The subnets can all see each other but cannot see outside the external IP. I went through the ipmasq howto and am currently running the first simple script but even this won’t allow the subnets to see out. The machine can see out onto the net just fine itself. ip_forward is set to 1. I’m baffeled. The script I’m running is below.   iptables –A FORWARD –i eth0 –o eth1 –m state –state ESTABLISHED, RELATED –j ACCEPT iptables –A FORWARD –i eth1 –o eth0 –j ACCEPT iptables –A FORWARD –j LOG iptables –t nat –A POSTROUTING –o eth0 –j MASQUERADE     thanks for your help   -Jeremy