diff --git a/net/mwan3/Makefile b/net/mwan3/Makefile
index 34e38f07c..6c5154336 100644
--- a/net/mwan3/Makefile
+++ b/net/mwan3/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mwan3
-PKG_VERSION:=2.6.6
+PKG_VERSION:=2.6.7
 PKG_RELEASE:=1
 PKG_MAINTAINER:=Florian Eckert <fe@dev.tdt.de>
 PKG_LICENSE:=GPLv2
diff --git a/net/mwan3/files/etc/hotplug.d/iface/15-mwan3 b/net/mwan3/files/etc/hotplug.d/iface/15-mwan3
index 27033d582..71d6393b4 100644
--- a/net/mwan3/files/etc/hotplug.d/iface/15-mwan3
+++ b/net/mwan3/files/etc/hotplug.d/iface/15-mwan3
@@ -26,24 +26,20 @@ if [ "$ACTION" == "ifup" ]; then
 	if [ "$family" = "ipv4" ]; then
 		ubus call network.interface.${INTERFACE}_4 status &>/dev/null
 		if [ "$?" -eq "0" ]; then
-			network_get_gateway gateway ${INTERFACE}_4
 			network_get_ipaddr src_ip ${INTERFACE}_4
 		else
-			network_get_gateway gateway $INTERFACE
 			network_get_ipaddr src_ip ${INTERFACE}
 		fi
+		[ -n "$src_ip" ] || src_ip="0.0.0.0"
 	elif [ "$family" = "ipv6" ]; then
 		ubus call network.interface.${INTERFACE}_6 status &>/dev/null
 		if [ "$?" -eq "0" ]; then
-			network_get_gateway6 gateway ${INTERFACE}_6
 			network_get_ipaddr6 src_ip ${INTERFACE}_6
 		else
-			network_get_gateway6 gateway ${INTERFACE}
 			network_get_ipaddr6 src_ip ${INTERFACE}
 		fi
+		[ -n "$src_ip" ] || src_ip="::"
 	fi
-
-	[ -n "$gateway" ] || exit 9
 fi
 
 if [ "$initial_state" = "offline" ]; then
diff --git a/net/mwan3/files/lib/mwan3/mwan3.sh b/net/mwan3/files/lib/mwan3/mwan3.sh
index a92cb4687..c24db3cae 100644
--- a/net/mwan3/files/lib/mwan3/mwan3.sh
+++ b/net/mwan3/files/lib/mwan3/mwan3.sh
@@ -195,7 +195,7 @@ mwan3_set_general_iptables()
 
 mwan3_create_iface_iptables()
 {
-	local id family src_ip src_ipv6
+	local id family
 
 	config_get family $1 family ipv4
 	mwan3_get_iface_id id $1
@@ -203,14 +203,6 @@ mwan3_create_iface_iptables()
 	[ -n "$id" ] || return 0
 
 	if [ "$family" == "ipv4" ]; then
-
-		ubus call network.interface.${1}_4 status &>/dev/null
-		if [ "$?" -eq "0" ]; then
-			network_get_ipaddr src_ip ${1}_4
-		else
-			network_get_ipaddr src_ip $1
-		fi
-
 		$IPS -! create mwan3_connected list:set
 
 		if ! $IPT4 -S mwan3_ifaces_in &> /dev/null; then
@@ -237,21 +229,13 @@ mwan3_create_iface_iptables()
 		$IPT4 -A mwan3_ifaces_in -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_in_$1
 
 		$IPT4 -F mwan3_iface_out_$1
-		$IPT4 -A mwan3_iface_out_$1 -s $src_ip -m mark --mark 0x0/$MMX_MASK -m comment --comment "$1" -j MARK --set-xmark $(mwan3_id2mask id MMX_MASK)/$MMX_MASK
+		$IPT4 -A mwan3_iface_out_$1 -o $2 -m mark --mark 0x0/$MMX_MASK -m comment --comment "$1" -j MARK --set-xmark $(mwan3_id2mask id MMX_MASK)/$MMX_MASK
 
 		$IPT4 -D mwan3_ifaces_out -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_out_$1 &> /dev/null
 		$IPT4 -A mwan3_ifaces_out -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_out_$1
 	fi
 
 	if [ "$family" == "ipv6" ]; then
-
-		ubus call network.interface.${1}_6 status &>/dev/null
-		if [ "$?" -eq "0" ]; then
-			network_get_ipaddr6 src_ipv6 ${1}_6
-		else
-			network_get_ipaddr6 src_ipv6 $1
-		fi
-
 		$IPS -! create mwan3_connected_v6 hash:net family inet6
 
 		if ! $IPT6 -S mwan3_ifaces_in &> /dev/null; then
@@ -278,7 +262,7 @@ mwan3_create_iface_iptables()
 		$IPT6 -A mwan3_ifaces_in -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_in_$1
 
 		$IPT6 -F mwan3_iface_out_$1
-		$IPT6 -A mwan3_iface_out_$1 -s $src_ipv6 -m mark --mark 0x0/$MMX_MASK -m comment --comment "$1" -j MARK --set-xmark $(mwan3_id2mask id MMX_MASK)/$MMX_MASK
+		$IPT6 -A mwan3_iface_out_$1 -o $2 -m mark --mark 0x0/$MMX_MASK -m comment --comment "$1" -j MARK --set-xmark $(mwan3_id2mask id MMX_MASK)/$MMX_MASK
 
 		$IPT6 -D mwan3_ifaces_out -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_out_$1 &> /dev/null
 		$IPT6 -A mwan3_ifaces_out -m mark --mark 0x0/$MMX_MASK -j mwan3_iface_out_$1
@@ -322,32 +306,37 @@ mwan3_create_iface_route()
 	[ -n "$id" ] || return 0
 
 	if [ "$family" == "ipv4" ]; then
-		ubus call network.interface.${1}_4 status &>/dev/null
-		if [ "$?" -eq "0" ]; then
+		if ubus call network.interface.${1}_4 status &>/dev/null; then
 			network_get_gateway route_args ${1}_4
 		else
 			network_get_gateway route_args $1
 		fi
 
-		route_args="via $route_args dev $2"
+		if [ -n "$route_args" -a "$route_args" != "0.0.0.0" ]; then
+			route_args="via $route_args"
+		else
+			route_args=""
+		fi
 
 		$IP4 route flush table $id
-		$IP4 route add table $id default $route_args
+		$IP4 route add table $id default $route_args dev $2
 	fi
 
 	if [ "$family" == "ipv6" ]; then
-
-		ubus call network.interface.${1}_6 status &>/dev/null
-		if [ "$?" -eq "0" ]; then
+		if ubus call network.interface.${1}_6 status &>/dev/null; then
 			network_get_gateway6 route_args ${1}_6
 		else
 			network_get_gateway6 route_args $1
 		fi
 
-		route_args="via $route_args dev $2"
+		if [ -n "$route_args" -a "$route_args" != "::" ]; then
+			route_args="via $route_args"
+		else
+			route_args=""
+		fi
 
 		$IP6 route flush table $id
-		$IP6 route add table $id default $route_args
+		$IP6 route add table $id default $route_args dev $2
 	fi
 }
 
diff --git a/net/mwan3/files/usr/sbin/mwan3track b/net/mwan3/files/usr/sbin/mwan3track
index e94ada815..4b744b9fc 100755
--- a/net/mwan3/files/usr/sbin/mwan3track
+++ b/net/mwan3/files/usr/sbin/mwan3track
@@ -21,7 +21,10 @@ if_down() {
 validate_track_method() {
 	case "$1" in
 		ping)
-			# Assume that ping is installed
+			which ping 1>/dev/null 2>&1 || {
+				$LOG warn "Missing ping. Please install iputils-ping package or enable ping util and recompile busybox."
+				return 1
+			}
 			;;
 		arping)
 			which arping 1>/dev/null 2>&1 || {
@@ -34,6 +37,10 @@ validate_track_method() {
 				$LOG warn "Missing httping. Please install httping package."
 				return 1
 			}
+			[ -n "$2" -a "$2" != "0.0.0.0" -a "$2" != "::" ] || {
+				$LOG warn "Cannot determine source IP for the interface which is required by httping."
+				return 1
+			}
 			;;
 		*)
 			$LOG warn "Unsupported tracking method: $track_method"
@@ -59,9 +66,14 @@ main() {
 
 	config_load mwan3
 	config_get track_method $1 track_method ping
-	validate_track_method $track_method || {
-		$LOG warn "Using ping to track interface $INTERFACE avaliability"
+	validate_track_method $track_method $SRC_IP || {
 		track_method=ping
+		if validate_track_method $track_method; then
+			$LOG warn "Using ping to track interface $INTERFACE avaliability"
+		else
+			$LOG err "No track method avaliable"
+			exit 1
+		fi
 	}
 	config_get reliability $1 reliability 1
 	config_get count $1 count 1