How to enable IPv4 forwarding in Alpine Linux
You can run this simple command as root to enable IPv4 forwarding in Alpine Linux:
sysctl -w net.ipv4.ip_forward=1
This setting will not persist after reboot.
In order to make the setting persist, append net.ipv4.ip_forward=1
to /etc/sysctl.conf
:
echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf