i want to enable ip forwarding automatically whenever i reboot my linux machine . i have put the following command in /etc/rc.d/rc.local
echo 1 > /proc/sys/net/ipv4/ip_forward
but it is not working . Secondly I want to make a virtual ethernet interface ie eth0:1 coz i have got only one NIC.
Can any linux guru tell me what files to modify to get the above settings permanent , so that these settings remain there even system is rebooted.
Thanks for your help in advance
IA