--- /dev/null
+#!/bin/sh
+
+. /lib/functions/uci-defaults-new.sh
+
+board_config_update
+
+if grep -q lan1 /proc/net/dev; then
+ ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" "wan"
+else
+ ucidef_set_interface_lan "eth0"
+fi
+
+board_config_flush
+
+exit 0