diff --git a/target/linux/realtek/base-files/etc/board.d/02_network b/target/linux/realtek/base-files/etc/board.d/02_network
index 58461c9c99..4eeb5768e3 100644
--- a/target/linux/realtek/base-files/etc/board.d/02_network
+++ b/target/linux/realtek/base-files/etc/board.d/02_network
@@ -22,27 +22,23 @@ for lan in /sys/class/net/lan*; do
 	lan_list="$lan_list $(basename $lan)"
 done
 ucidef_set_bridge_device switch
-ucidef_set_interface_wan "$lan_list"
-ucidef_set_interface "lan" device "lan1:t" protocol "static" vlan 100
+ucidef_set_interface_lan "$lan_list"
 
 lan_mac=""
-wan_mac=""
 label_mac=""
 case $board in
 *)
-	wan_mac=$(mtd_get_mac_ascii u-boot-env ethaddr)
+	lan_mac=$(mtd_get_mac_ascii u-boot-env ethaddr)
 	label_mac=$lan_mac
 	;;
 esac
 
-lan_mac=$(macaddr_setbit_la $wan_mac)
-
 ucidef_set_interface_macaddr "lan" $lan_mac
-ucidef_set_interface_macaddr "wan" $wan_mac
-ucidef_set_bridge_mac "$wan_mac"
-ucidef_set_network_device_mac eth0 $wan_mac
+ucidef_set_bridge_mac "$lan_mac"
+ucidef_set_network_device_mac eth0 $lan_mac
 for lan in $lan_list; do
 	ucidef_set_network_device_mac $lan $lan_mac
+	lan_mac=$(macaddr_setbit_la $lan_mac)
 	lan_mac=$(macaddr_add $lan_mac 1)
 done
 [ -n "$label_mac" ] && ucidef_set_label_macaddr $label_mac