Hi, I have a linux 2.4.7 box named X with two network interfaces, attaching itself to two different subnets, 1 and 2. I want to do ip forwarding, when a machine M1 in subnet 1 tries to reach a machine M2 in subnet 2. So I add a necessary route in M1 to make sure that it uses X as the gateway for the destination network 2. Trial 1 Manually edit the /proc/sys/net/ipv4/ip_forward file in X to change 0 to 1. Now a traceroute from M1 to M2 shows that X acts as the gateway. Trial 2 Keep /proc/sys/net/ipv4/ip_forward unchanged (ie. Keep it as 0). Add the line FORWARD_IPV4=true in /etc/sysconfig/network file of X , and then do a "service network restart". Now traceroute from M1 to M2 does not work. I tried even rebooting X, but that also didnt help. But again changing ip_forward file (as in Trial 1) worked. Could someone please explain what was worng with my approach in trial 2. Thanks in advance Regards, Rajesh N - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
