how do you configure linux system as a router?

Answer Posted / anindian

1st answer is correct till you boot your Linux machine, once
rebooted, its gone coz the /proc is a fs that is resident on
memory, thus if you want to forward your packets permanently
then you have to alter the net.ipv4.ip_forward parameter to
reflect the changes each time machine is booted. # sysctl -p
makes it effective without reboot.

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