net.ipv4.ip forward

sysctl -w net.ipv4.ip_forward=1

sudo sed -i '/#net.ipv4.ip_forward=1/s/^#//g' /etc/sysctl.conf

sysctl -a | grep -w net.ipv4.ip_forward
cat /etc/sysctl.conf | grep -w net.ipv4.ip_forward

Related

/proc/net/

See also

• sysctl, -a, -p, -w, vm.swappiness, /etc/sysctl.conf, /etc/sysctl.d/, net.ipv4.ip_forward, OOM, Kernel.shmmax, prlimit