I compiled a 2.2.19 kernel because I want to use ipchains and do IP masquerading. The ipmasq package description on the debian website says one should enalbe CONFIG_FIREWALL, CONFIG_IP_FIREWALL, CONFIG_IP_FORWARD, and CONFIG_IP_MASQUERADE.
I couldn't find CONFIG_IP_FORWARD in the kernel compile options. I assumed it was obsolete and went on. After installing the kernel and rebooting I installed the ipmasq package from potato. It printed the following error several times: Should I start IP Masquerading? [Y/n] y Initializing IP Masquerading.../sbin/ipchains: invalid mask `' specified Try `/sbin/ipchains -h' or '/sbin/ipchains --help' for more information. In between these errors it said IP forwarding is not enabled and I should do echo 1 /proc/sys/net/ipv4/ip_forward The file /proc/sys/net/ipv4/ip_forward already contains a "1". Now I don't know what to do. I cannot connect to the internet from the other box. It says unknown host. The internal network runs fine otherwise, and /etc/network/interfaces looks good. The internet connection on this box that I want to use as gatewaw also works. Help would be great.
