diff --git a/Shorewall-init/ifupdown.fedora.sh b/Shorewall-init/ifupdown.fedora.sh
index 9fdd1e1f2..667a2db5c 100644
--- a/Shorewall-init/ifupdown.fedora.sh
+++ b/Shorewall-init/ifupdown.fedora.sh
@@ -90,7 +90,14 @@ case $0 in
 		COMMAND=down
 		;;
 	    *dispatcher.d*)
-		COMMAND="$2"
+		case "$2" in
+		    up|down)
+			COMMAND="$2"
+			;;
+		    *)
+			exit 0
+			;;
+		esac			
 		;;
 	    *)
 		exit 0
diff --git a/Shorewall-init/ifupdown.suse.sh b/Shorewall-init/ifupdown.suse.sh
index d5e9ca577..2ea3bba1c 100644
--- a/Shorewall-init/ifupdown.suse.sh
+++ b/Shorewall-init/ifupdown.suse.sh
@@ -120,7 +120,14 @@ case $0 in
 	case $0 in
 	    *dispatcher.d*)
 		INTERFACE="$1"
-		COMMAND="$2"
+		case "$2" in
+		    up|down)
+			COMMAND="$2"
+			;;
+		    *)
+			exit 0
+			;;
+		esac
 		;;
 	    *if-up.d*)
 		COMMAND=up