diff --git a/files/nat6.init b/files/nat6.init
index ee10d83..b3d1892 100644
--- a/files/nat6.init
+++ b/files/nat6.init
@@ -24,6 +24,28 @@ interface() {
 	done
 }
 
+hotplug_iface() {
+	[ ! -f /etc/hotplug.d/iface/90-nat6 ] && cat > /etc/hotplug.d/iface/90-nat6 << "EOF"
+#!/bin/sh
+
+dhcpv6_interface=$(uci -q show network | grep dhcpv6 | grep -o 'network\.\([^\.]*\)' | sed 's/network.//')
+IFS=$'\n'
+for interface_name in $dhcpv6_interface
+do
+	device=$(uci -q show network.$interface_name.device | grep -o "'.*'" | awk -F"'" '{print $2}')
+	if [ $(ifconfig $device | grep -c "inet6 addr") -gt 0 ]; then
+		interface_name=$interface_name
+	fi
+done
+
+[ "$INTERFACE" = "$interface_name" ] || exit 0
+
+if [ "$ACTION" = ifup ] || [ "$ACTION" = iflink ] || [ "$ACTION" = ifupdate ] || [ "$ACTION" = reload ]; then
+	/etc/init.d/nat6 restart
+fi
+EOF
+}
+
 common_config() {
 	if [ -z $(uci -q get network.globals.ula_prefix) ] || [ $(uci -q get network.globals.ula_prefix | grep -c "/48") != 1 ]; then
 		r1=$(dd if=/dev/urandom bs=1 count=1 2>/dev/null | hexdump -e '1/1 "%02x"')
@@ -56,6 +78,7 @@ EOF
 start() {
 	[ "$(uci -q get firewall.@defaults[0].nat6)" != 1 ] && return 0
 	interface
+	hotplug_iface
 	[ -z "$device" ] && logger -p error -t network -s "nat6: DHCPv6 interface device not configured, IPv6 NAT failed." && exit 0
 	[ -z "$gateway" ] && logger -p error -t network -s "nat6: DHCPv6 gateway not found, IPv6 NAT failed." && exit 0
 	common_config
@@ -65,25 +88,6 @@ start() {
 	nft add chain ip6 nat prerouting { type nat hook prerouting priority 0\; } 2>/dev/null
 	nft add chain ip6 nat postrouting { type nat hook postrouting priority 100\; } 2>/dev/null
 	nft add rule ip6 nat postrouting oif $device masquerade 2>/dev/null
-	[ ! -f /etc/hotplug.d/iface/90-nat6 ] && cat > /etc/hotplug.d/iface/90-nat6 << "EOF"
-#!/bin/sh
-
-dhcpv6_interface=$(uci -q show network | grep dhcpv6 | grep -o 'network\.\([^\.]*\)' | sed 's/network.//')
-IFS=$'\n'
-for interface_name in $dhcpv6_interface
-do
-	device=$(uci -q show network.$interface_name.device | grep -o "'.*'" | awk -F"'" '{print $2}')
-	if [ $(ifconfig $device | grep -c "inet6 addr") -gt 0 ]; then
-		interface_name=$interface_name
-	fi
-done
-
-[ "$INTERFACE" = "$interface_name" ] || exit 0
-
-if [ "$ACTION" = ifup ] || [ "$ACTION" = iflink ] || [ "$ACTION" = ifupdate ] || [ "$ACTION" = reload ]; then
-	/etc/init.d/nat6 restart
-fi
-EOF
 	logger -p notice -t network -s "nat6: IPv6 NAT is ready"
 }