I'm using firestarter to manage my firewall. I have to use pppoe for my internet connection, so I use option "Start firewall on dial-out". I'm also using option of Internet connection sharing, so my computer acts as a router to enable other computer to access the internet. Everything works well except that when firewall is started on dial-out, ip forwarding is left disabled. I tweaked a firewall script created by firestarter to print some additional information and I'm absolutely sure that line 'echo 1 > /proc/sys/net/ipv4/ip_forward' is executed. Also, if I manually restart firewall, it enables ip forwarding. SElinux is set to permissive mode. What prevents firestarter from enabling IP forwarding? Thanks.
