Hi, I am trying to set up a FC2 PC (tux1700) as a gateway to the internet via my modem ppp0 and another FC2 PC (tux) that will use the gateway through eth0. At the moment this does not work and I don't know if the problem is the gateway or the other PC or both. How do I best troubleshoot this problem ? Gateway PC --- cat /etc/sysconfig/iptables # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *nat :PREROUTING ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A POSTROUTING -o ppp0 -j MASQUERADE COMMIT *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] COMMIT --- cat /proc/sys/net/ipv4/ip_forward 1 --- Other PC --- cat /etc/sysconfig/iptables # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -i eth0 -j ACCEPT -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p 50 -j ACCEPT -A RH-Firewall-1-INPUT -p 51 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT --- cat /proc/sys/net/ipv4/ip_forward 1 --- Mvh Hans Christian Studt Private +45 48 79 79 89 Mobile +45 29 23 54 14 Business +45 36 14 54 14 mailto:hc@xxxxxxxx http://hc.studt.dk Powered by Linux 2.6.8-1.521
