diff --git a/target/linux/lantiq/ase/base-files/etc/board.d/02_network b/target/linux/lantiq/ase/base-files/etc/board.d/02_network
index 2334d6c25b..0bda3e4763 100755
--- a/target/linux/lantiq/ase/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/ase/base-files/etc/board.d/02_network
@@ -7,37 +7,50 @@
 . /lib/functions/system.sh
 . /lib/functions/lantiq.sh
 
-board_config_update
-
-annex="a"
-
-lan_mac=""
-wan_mac=""
+lantiq_setup_interfaces()
+{
+	local board="$1"
+
+	case "$board" in
+	*)
+		ucidef_set_interface_lan 'eth0'
+		;;
+	esac
+}
+
+lantiq_setup_dsl()
+{
+	local board="$1"
+	local annex="b"
+
+	case "$board" in
+	esac
+
+	lantiq_setup_dsl_helper "$annex"
+}
+
+lantiq_setup_macs()
+{
+	local board="$1"
+	local lan_mac=""
+	local wan_mac=""
+
+	case "$board" in
+	allnet,all0333cj)
+		lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		;;
+	esac
+
+	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
+	[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+}
 
+board_config_update
 board=$(board_name)
-
-case "$board" in
-allnet,all0333cj)
-	annex="b"
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_set_interface_lan 'eth0'
-	;;
-netgear,dgn1000b)
-	annex="b"
-	ucidef_set_interface_lan 'eth0'
-	;;
-*)
-	ucidef_set_interface_lan 'eth0'
-	;;
-esac
-
-lantiq_setup_dsl_helper "$annex"
-
-[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
-[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
-
+lantiq_setup_interfaces $board
+lantiq_setup_dsl $board
+lantiq_setup_macs $board
 board_config_flush
 
 exit 0
-
diff --git a/target/linux/lantiq/falcon/base-files/etc/board.d/02_network b/target/linux/lantiq/falcon/base-files/etc/board.d/02_network
index 997f4c741f..7998efc2a0 100755
--- a/target/linux/lantiq/falcon/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/falcon/base-files/etc/board.d/02_network
@@ -7,21 +7,46 @@
 . /lib/functions/system.sh
 . /lib/functions/lantiq.sh
 
-board_config_update
+lantiq_setup_interfaces()
+{
+	local board="$1"
+
+	case "$board" in
+	*)
+		ucidef_set_interface_lan 'eth0'
+		;;
+	esac
+}
+
+lantiq_setup_dsl()
+{
+	local board="$1"
+	local annex="a"
 
-annex="a"
+	case "$board" in
+	esac
 
-lan_mac=""
-wan_mac=""
+	lantiq_setup_dsl_helper "$annex"
+}
 
-ucidef_set_interface_lan 'eth0'
+lantiq_setup_macs()
+{
+	local board="$1"
+	local lan_mac=""
+	local wan_mac=""
 
-lantiq_setup_dsl_helper "$annex"
+	case "$board" in
+	esac
 
-[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
-[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
+	[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+}
 
+board_config_update
+board=$(board_name)
+lantiq_setup_interfaces $board
+lantiq_setup_dsl $board
+lantiq_setup_macs $board
 board_config_flush
 
 exit 0
-
diff --git a/target/linux/lantiq/xrx200/base-files/etc/board.d/02_network b/target/linux/lantiq/xrx200/base-files/etc/board.d/02_network
index 05e235b096..f39898263d 100755
--- a/target/linux/lantiq/xrx200/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/xrx200/base-files/etc/board.d/02_network
@@ -7,128 +7,169 @@
 . /lib/functions/system.sh
 . /lib/functions/lantiq.sh
 
-board_config_update
+lantiq_setup_interfaces()
+{
+	local board="$1"
 
-annex="a"
+	case "$board" in
+	alphanetworks,asl56026)
+		ucidef_add_switch "switch0" \
+			"2:lan" "3:lan" "6t@eth0"
+		;;
+	arcadyan,arv7519rw22)
+		ucidef_add_switch "switch0" \
+			"0:lan:5" "2:lan:3" "3:lan:4" "4:lan:1" "5:lan:2" "6t@eth0"
+		;;
+	arcadyan,vg3503j)
+		ucidef_add_switch "switch0" \
+			"2:lan:2" "4:lan:1" "6t@eth0"
+		;;
+	arcadyan,vgv7510kw22-brn|\
+	arcadyan,vgv7510kw22-nor)
+		ucidef_add_switch "switch0" \
+			"2:lan:2" "3:lan:1" "4:lan:4" "5:lan:3" "0:wan:5" "6t@eth0"
+		;;
+	arcadyan,vgv7519-brn|\
+	arcadyan,vgv7519-nor|\
+	lantiq,easy80920-nand|\
+	lantiq,easy80920-nor)
+		ucidef_add_switch "switch0" \
+			"0:lan:4" "1:lan:3" "2:lan:2" "4:lan:1" "5:wan:5" "6t@eth0"
+		;;
+	avm,fritz3370-rev2-hynix|\
+	avm,fritz3370-rev2-micron|\
+	avm,fritz7360sl|\
+	avm,fritz7362sl)
+		ucidef_add_switch "switch0" \
+			"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "6t@eth0"
+		;;
+	bt,homehub-v5a)
+		ucidef_add_switch "switch0" \
+			"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "5:wan:5" "6t@eth0"
+		;;
+	buffalo,wbmr-300hpd)
+		ucidef_add_switch "switch0" \
+			"5:lan:2" "2:lan:3" "3:lan:4" "4:wan:1" "6t@eth0"
+		;;
+	tplink,tdw8970|\
+	tplink,tdw8980)
+		ucidef_add_switch "switch0" \
+			"0:lan:2" "2:lan:3" "4:lan:4" "5:lan:1" "6t@eth0"
+		;;
+	tplink,vr200|\
+	tplink,vr200v)
+		ucidef_add_switch "switch0" \
+			"0:lan" "2:lan" "4:lan" "5:lan" "6t@eth0"
+		;;
+	zyxel,p-2812hnu-f1|\
+	zyxel,p-2812hnu-f3)
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "4:lan" "5:wan" "6t@eth0"
+		;;
+	*)
+		ucidef_set_interface_lan 'eth0'
+		;;
+	esac
+}
 
-lan_mac=""
-wan_mac=""
+lantiq_setup_dsl()
+{
+	local board="$1"
+	local annex="a"
 
-board=$(board_name)
+	case "$board" in
+	arcadyan,vgv7510kw22-brn|\
+	arcadyan,vgv7510kw22-nor|\
+	avm,fritz3370-rev2-hynix|\
+	avm,fritz3370-rev2-micron|\
+	avm,fritz7360sl|\
+	avm,fritz7362sl|\
+	avm,fritz7412)
+		annex="b"
+		;;
+	esac
+
+	lantiq_setup_dsl_helper "$annex"
+}
 
-case "$board" in
-alphanetworks,asl56026)
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(mtd_get_mac_ascii uboot_env wanmac)
-	ucidef_add_switch "switch0"\
-		"2:lan" "3:lan" "6t@eth0"
-	;;
-arcadyan,arv7519rw22)
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary boardconfig 0x16)" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:5" "2:lan:3" "3:lan:4" "4:lan:1" "5:lan:2" "6t@eth0"
-	;;
-arcadyan,vg3503j)
-	lan_mac=$(mtd_get_mac_ascii uboot-env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"2:lan:2" "4:lan:1" "6t@eth0"
-	;;
-arcadyan,vgv7510kw22-brn|\
-arcadyan,vgv7510kw22-nor)
-	annex="b"
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 2)
-	ucidef_add_switch "switch0" \
-		"2:lan:2" "3:lan:1" "4:lan:4" "5:lan:3" "0:wan:5" "6t@eth0"
-	;;
-arcadyan,vgv7519-brn|\
-arcadyan,vgv7519-nor)
-	wan_mac=$(mtd_get_mac_binary board_config 0x16)
-	ucidef_add_switch "switch0" \
-		"0:lan:4" "1:lan:3" "2:lan:2" "4:lan:1" "5:wan:5" "6t@eth0"
-	;;
-avm,fritz3370-rev2-hynix|\
-avm,fritz3370-rev2-micron)
-	annex="b"
-	lan_mac=$(fritz_tffs -n maca -i $(find_mtd_part "tffs (1)"))
-	wan_mac=$(macaddr_add "$lan_mac" 3)
-	ucidef_add_switch "switch0" \
-		"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "6t@eth0"
-	;;
-avm,fritz7360sl)
-	annex="b"
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary urlader 0xa91)" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "6t@eth0"
-	;;
-avm,fritz7362sl)
-	annex="b"
-	lan_mac=$(fritz_tffs -n maca -i $(find_mtd_part "tffs (1)"))
-	wan_mac=$(fritz_tffs -n macdsl -i $(find_mtd_part "tffs (1)"))
-	ucidef_add_switch "switch0" \
-		"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "6t@eth0"
-	;;
-avm,fritz7412)
-	tffsdev=$(find_mtd_chardev "nand-tffs")
-	annex="b"
-	lan_mac=$(/usr/bin/fritz_tffs_nand -d $tffsdev -n maca -o)
-	wan_mac=$(/usr/bin/fritz_tffs_nand -d $tffsdev -n macdsl -o)
-	ucidef_set_interface_lan 'eth0'
-	;;
-bt,homehub-v5a)
-	lan_mac=$(mtd_get_mac_binary_ubi caldata 0x110c)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:3" "1:lan:4" "2:lan:2" "4:lan:1" "5:wan:5" "6t@eth0"
-	;;
-buffalo,wbmr-300hpd)
-	lan_mac=$(mtd_get_mac_ascii ubootconfig ethaddr)
-	wan_mac="$lan_mac"
-	ucidef_add_switch "switch0" \
-		"5:lan:2" "2:lan:3" "3:lan:4" "4:wan:1" "6t@eth0"
-	;;
-lantiq,easy80920-nand|\
-lantiq,easy80920-nor)
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:4" "1:lan:3" "2:lan:2" "4:lan:1" "5:wan:5" "6t@eth0"
-	;;
-netgear,dm200)
-	lan_mac=$(mtd_get_mac_binary ART 0x0)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_set_interface_lan 'eth0'
-	;;
-tplink,tdw8970|\
-tplink,tdw8980)
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary boardconfig 0xf100)" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:2" "2:lan:3" "4:lan:4" "5:lan:1" "6t@eth0"
-	;;
-tplink,vr200|\
-tplink,vr200v)
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary romfile 0xf100)" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan" "2:lan" "4:lan" "5:lan" "6t@eth0"
-	;;
-zyxel,p-2812hnu-f1|\
-zyxel,p-2812hnu-f3)
-	lan_mac=$(mtd_get_mac_ascii uboot-env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan" "1:lan" "2:lan" "4:lan" "5:wan" "6t@eth0"
-	;;
-*)
-	ucidef_set_interface_lan 'eth0'
-	;;
-esac
+lantiq_setup_macs()
+{
+	local board="$1"
+	local lan_mac=""
+	local wan_mac=""
 
-lantiq_setup_dsl_helper "$annex"
+	case "$board" in
+	alphanetworks,asl56026)
+		lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
+		wan_mac=$(mtd_get_mac_ascii uboot_env wanmac)
+		;;
+	arcadyan,arv7519rw22)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary boardconfig 0x16)" 1)
+		;;
+	arcadyan,vg3503j|\
+	lantiq,easy80920-nand|\
+	lantiq,easy80920-nor|\
+	zyxel,p-2812hnu-f1|\
+	zyxel,p-2812hnu-f3)
+		lan_mac=$(mtd_get_mac_ascii uboot-env ethaddr)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		;;
+	arcadyan,vgv7510kw22-brn|\
+	arcadyan,vgv7510kw22-nor)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 2)
+		;;
+	arcadyan,vgv7519-brn|\
+	arcadyan,vgv7519-nor)
+		wan_mac=$(mtd_get_mac_binary board_config 0x16)
+		;;
+	avm,fritz3370-rev2-hynix|\
+	avm,fritz3370-rev2-micron)
+		lan_mac=$(fritz_tffs -n maca -i $(find_mtd_part "tffs (1)"))
+		wan_mac=$(macaddr_add "$lan_mac" 3)
+		;;
+	avm,fritz7360sl)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary urlader 0xa91)" 1)
+		;;
+	avm,fritz7362sl)
+		lan_mac=$(fritz_tffs -n maca -i $(find_mtd_part "tffs (1)"))
+		wan_mac=$(fritz_tffs -n macdsl -i $(find_mtd_part "tffs (1)"))
+		;;
+	avm,fritz7412)
+		tffsdev=$(find_mtd_chardev "nand-tffs")
+		lan_mac=$(/usr/bin/fritz_tffs_nand -d $tffsdev -n maca -o)
+		wan_mac=$(/usr/bin/fritz_tffs_nand -d $tffsdev -n macdsl -o)
+		;;
+	bt,homehub-v5a)
+		lan_mac=$(mtd_get_mac_binary_ubi caldata 0x110c)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		;;
+	buffalo,wbmr-300hpd)
+		lan_mac=$(mtd_get_mac_ascii ubootconfig ethaddr)
+		wan_mac="$lan_mac"
+		;;
+	netgear,dm200)
+		lan_mac=$(mtd_get_mac_binary ART 0x0)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		;;
+	tplink,tdw8970|\
+	tplink,tdw8980)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary boardconfig 0xf100)" 1)
+		;;
+	tplink,vr200|\
+	tplink,vr200v)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary romfile 0xf100)" 1)
+		;;
+	esac
 
-[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
-[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
+	[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+}
 
+board_config_update
+board=$(board_name)
+lantiq_setup_interfaces $board
+lantiq_setup_dsl $board
+lantiq_setup_macs $board
 board_config_flush
 
 exit 0
-
diff --git a/target/linux/lantiq/xway/base-files/etc/board.d/02_network b/target/linux/lantiq/xway/base-files/etc/board.d/02_network
index 71d36696db..89368d8bfb 100755
--- a/target/linux/lantiq/xway/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/xway/base-files/etc/board.d/02_network
@@ -7,107 +7,112 @@
 . /lib/functions/system.sh
 . /lib/functions/lantiq.sh
 
-board_config_update
+lantiq_setup_interfaces()
+{
+	local board="$1"
 
-annex="a"
+	case "$board" in
+	arcadyan,arv4510pw)
+		ucidef_add_switch "switch0" \
+			"0:lan:4" "2:lan:2" "1:lan:3" "3:lan:1" "5t@eth0"
+		;;
+	arcadyan,arv4519pw|\
+	arcadyan,arv7510pw22|\
+	arcadyan,arv7518pw|\
+	arcadyan,arv752dpw22|\
+	arcadyan,arv8539pw22|\
+	buffalo,wbmr-hp-g300h)
+		ucidef_add_switch "switch0" \
+			"0t@eth0" "2:lan" "3:lan" "4:lan" "5:lan"
+		;;
+	arcadyan,arv7506pw11|\
+	audiocodes,mp-252|\
+	siemens,gigaset-sx76x)
+		ucidef_add_switch "switch0" \
+			"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "5t@eth0"
+		;;
+	arcadyan,arv7519pw|\
+	zte,h201l)
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4t@eth0"
+		;;
+	bt,homehub-v2b)
+		ucidef_add_switch "switch0" \
+			"1:lan" "2:lan" "3:lan" "4:lan" "5t@eth0"
+		;;
+	netgear,dgn3500|\
+	netgear,dgn3500b)
+		ucidef_add_switch "switch0" \
+			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "5t@eth0"
+		;;
+	zyxel,p-2601hn)
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "5t@eth0"
+		;;
+	*)
+		ucidef_set_interface_lan 'eth0'
+		;;
+	esac
+}
 
-lan_mac=""
-wan_mac=""
+lantiq_setup_dsl()
+{
+	local board="$1"
+	local annex="a"
 
-board=$(board_name)
+	case "$board" in
+	arcadyan,arv7506pw11|\
+	arcadyan,arv7525pw|\
+	arcadyan,arv752dpw|\
+	arcadyan,arv752dpw22|\
+	arcadyan,arv8539pw22|\
+	avm,fritz7312|\
+	avm,fritz7320|\
+	siemens,gigaset-sx76x|\
+	zte,h201l)
+		annex="b"
+		;;
+	esac
+
+	lantiq_setup_dsl_helper "$annex"
+}
 
-case "$board" in
-arcadyan,arv4510pw)
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:4" "2:lan:2" "1:lan:3" "3:lan:1" "5t@eth0"
-	;;
-arcadyan,arv4519pw|\
-arcadyan,arv7510pw22|\
-arcadyan,arv7518pw)
-	ucidef_add_switch "switch0" \
-		"0t@eth0" "2:lan" "3:lan" "4:lan" "5:lan"
-	;;
-arcadyan,arv7506pw11)
-	annex="b"
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 2)
-	ucidef_add_switch "switch0" \
-		"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "5t@eth0"
-	;;
-arcadyan,arv7519pw)
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan" "1:lan" "2:lan" "3:lan" "4t@eth0"
-	;;
-arcadyan,arv7525pw|\
-arcadyan,arv752dpw)
-	annex="b"
-	ucidef_set_interface_lan 'eth0'
-	;;
-arcadyan,arv752dpw22|\
-arcadyan,arv8539pw22)
-	annex="b"
-	ucidef_add_switch "switch0" \
-		"0t@eth0" "2:lan" "3:lan" "4:lan" "5:lan"
-	;;
-audiocodes,mp-252)
-	ucidef_add_switch "switch0" \
-		"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "5t@eth0"
-	;;
-avm,fritz7312|\
-avm,fritz7320)
-	annex="b"
-	wan_mac=$(macaddr_add "$(mtd_get_mac_binary urlader 0xa91)" 1)
-	ucidef_set_interface_lan 'eth0'
-	;;
-bt,homehub-v2b)
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"1:lan" "2:lan" "3:lan" "4:lan" "5t@eth0"
-	;;
-bt,homehub-v3a)
-	lan_mac=$(mtd_get_mac_ascii uboot_env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_set_interface_lan 'eth0'
-	;;
-buffalo,wbmr-hp-g300h)
-	ucidef_add_switch "switch0" \
-		"0t@eth0" "2:lan" "3:lan" "4:lan" "5:lan"
-	;;
-netgear,dgn3500|\
-netgear,dgn3500b)
-	lan_mac=$(mtd_get_mac_ascii uboot-env ethaddr)
-	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_add_switch "switch0" \
-		"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "5t@eth0"
-	;;
-siemens,gigaset-sx76x)
-	annex="b"
-	ucidef_add_switch "switch0" \
-		"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "5t@eth0"
-	;;
-zte,h201l)
-	annex="b"
-	ucidef_add_switch "switch0" \
-		"0:lan" "1:lan" "2:lan" "3:lan" "4t@eth0"
-	;;
-zyxel,p-2601hn)
-	ucidef_add_switch "switch0" \
-		"0:lan" "1:lan" "2:lan" "3:lan" "5t@eth0"
-	;;
-*)
-	ucidef_set_interface_lan 'eth0'
-	;;
-esac
+lantiq_setup_macs()
+{
+	local board="$1"
+	local lan_mac=""
+	local wan_mac=""
 
-lantiq_setup_dsl_helper "$annex"
+	case "$board" in
+	arcadyan,arv4510pw|\
+	bt,homehub-v2b|\
+	bt,homehub-v3a|\
+	netgear,dgn3500|\
+	netgear,dgn3500b)
+		lan_mac=$(mtd_get_mac_ascii uboot-env ethaddr)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		;;
+	arcadyan,arv7506pw11)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 2)
+		;;
+	arcadyan,arv7519pw)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary board_config 0x16)" 1)
+		;;
+	avm,fritz7312|\
+	avm,fritz7320)
+		wan_mac=$(macaddr_add "$(mtd_get_mac_binary urlader 0xa91)" 1)
+		;;
+	esac
 
-[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
-[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
+	[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+}
 
+board_config_update
+board=$(board_name)
+lantiq_setup_interfaces $board
+lantiq_setup_dsl $board
+lantiq_setup_macs $board
 board_config_flush
 
 exit 0
-
diff --git a/target/linux/lantiq/xway_legacy/base-files/etc/board.d/02_network b/target/linux/lantiq/xway_legacy/base-files/etc/board.d/02_network
index 2d5dbade62..c29beb832d 100755
--- a/target/linux/lantiq/xway_legacy/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/xway_legacy/base-files/etc/board.d/02_network
@@ -7,37 +7,55 @@
 . /lib/functions/system.sh
 . /lib/functions/lantiq.sh
 
-board_config_update
-
-annex="a"
-
-lan_mac=""
-wan_mac=""
+lantiq_setup_interfaces()
+{
+	local board="$1"
+
+	case "$board" in
+	arcadyan,arv4520pw)
+		ucidef_add_switch "switch0" \
+			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "5t@eth0"
+		;;
+	*)
+		ucidef_set_interface_lan 'eth0'
+		;;
+	esac
+}
+
+lantiq_setup_dsl()
+{
+	local board="$1"
+	local annex="a"
+
+	case "$board" in
+	arcadyan,arv4520pw|\
+	arcadyan,arv4525pw|\
+	arcadyan,arv452cqw)
+		annex="b"
+		;;
+	esac
+
+	lantiq_setup_dsl_helper "$annex"
+}
+
+lantiq_setup_macs()
+{
+	local board="$1"
+	local lan_mac=""
+	local wan_mac=""
+
+	case "$board" in
+	esac
+
+	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
+	[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
+}
 
+board_config_update
 board=$(board_name)
-
-case "$board" in
-arcadyan,arv4520pw)
-	annex="b"
-	ucidef_add_switch "switch0" \
-		"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "5t@eth0"
-	;;
-arcadyan,arv4525pw|\
-arcadyan,arv452cqw)
-	annex="b"
-	ucidef_set_interface_lan 'eth0'
-	;;
-*)
-	ucidef_set_interface_lan 'eth0'
-	;;
-esac
-
-lantiq_setup_dsl_helper "$annex"
-
-[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" "$lan_mac"
-[ -n "$wan_mac" ] && ucidef_set_interface_macaddr "wan" "$wan_mac"
-
+lantiq_setup_interfaces $board
+lantiq_setup_dsl $board
+lantiq_setup_macs $board
 board_config_flush
 
 exit 0
-