# openwrt-wan-failover This is a simple script/service that constantly pings your primary interface (WAN) and secondary interface (WWAN, though I suppose in practice it doesn't have to be a wireless WAN link). Install it with the `install.sh` script on your OpenWRT device, and either reboot, or start it immediately with `service wan-failover start`. There is currently no UI to configure it; use `uci` or manually edit the provided sample configuration file before installing. Before starting the service, you should set your primary interface's metric to 10, and the backup to 20.