Index: openwrt/target/linux/ath79/base-files/etc/board.d/02_network
===================================================================
--- openwrt.orig/target/linux/ath79/base-files/etc/board.d/02_network
+++ openwrt/target/linux/ath79/base-files/etc/board.d/02_network
@@ -38,6 +38,7 @@ ath79_setup_interfaces()
 	ubnt,lap-120|\
 	ubnt,nanobeam-ac|\
 	ubnt,nanostation-ac-loco|\
+	ubnt,nanostation-m-xw|\
 	ubnt,rocket-m|\
 	ubnt,unifiac-lite|\
 	ubnt,unifiac-lr|\
@@ -45,7 +46,9 @@ ath79_setup_interfaces()
 	ubnt,unifi|\
 	wd,mynet-wifi-rangeextender|\
 	winchannel,wb2000)
-		ucidef_set_interface_lan "eth0"
+		ucidef_set_interfaces_lan_wan "eth0" "eth0.1"
+		ucidef_set_interface "wifi" ifname "wlan0" protocol "static"
+		ucidef_set_interface "dtdlink" ifname "eth0.2" protocol "static"
 		;;
 	avm,fritz4020|\
 	pcs,cr3000|\
@@ -80,8 +83,9 @@ ath79_setup_interfaces()
 	tplink,tl-wr842n-v3|\
 	ubnt,airrouter)
 		ucidef_set_interface_wan "eth1"
+		ucidef_set_interface "wifi" "ifname" "wlan0" "protocol" "static"
 		ucidef_add_switch "switch0" \
-			"0@eth0" "1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1"
+			"0@eth0" "4:lan:1" "3:lan:2" "2:lan:3" "1t:unused" "1t:dtdlink"
 		;;
 	buffalo,wzr-hp-g302h-a1a0)
 		ucidef_add_switch "switch0" \
@@ -91,7 +95,10 @@ ath79_setup_interfaces()
 	comfast,cf-e120a-v3|\
 	ubnt,nanostation-m|\
 	ubnt,routerstation)
-		ucidef_set_interfaces_lan_wan "eth1" "eth0"
+		ucidef_set_interface_lan "eth0 eth1"
+		ucidef_set_interface_wan "eth0.1 eth1.1"
+		ucidef_set_interface "dtdlink" ifname "eth0.2 eth1.2" protocol "static"
+		ucidef_set_interface "wifi" ifname "wlan0" protocol "static"
 		;;
 	devolo,dvl1200e|\
 	devolo,dvl1750e|\
@@ -252,10 +259,6 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth1" "2:lan:3" "3:lan:2" "4:lan:1"
 		;;
-	ubnt,nanostation-m-xw)
-		ucidef_add_switch "switch0" \
-			"0@eth0" "5:lan" "1:wan"
-		;;
 	zbtlink,zbt-wd323|\
 	xiaomi,mi-router-4q)
 		ucidef_set_interface_wan "eth1"
@@ -263,7 +266,9 @@ ath79_setup_interfaces()
 			"0@eth0" "3:lan:1" "4:lan:2"
 		;;
 	*)
-		ucidef_set_interfaces_lan_wan "eth0" "eth1"
+		ucidef_set_interface "wifi" ifname "wlan0" protocol "static"
+		ucidef_set_interfaces_lan_wan "eth0" "eth0.1"
+		ucidef_set_interface "dtdlink" ifname "eth0.2" protocol "static"
 		;;
 	esac
 }