simple check for vpn gateway and local gateway

watchcat.sh

+#!/usr/bin/env bash
+
+#source state files
+VPN_FILE="/tmp/watchcat.vpn"
+NET_FILE="/tmp/watchcat.net"
+
+function f(){
+	echo "$1=\"$2\"" > $3
+}
+function vpn() {
+	f "VPN" "$1" "$VPN_FILE" 
+}
+
+function net() {
+	f "NET" "$1" "$NET_FILE"
+}
+
+ping -c 1 192.168.2.1 >/dev/null 2>&1 && NET_IS="UP"
+
+if [[ "$NET_IS" == "UP" ]]; then
+	net "UP"
+	ping -c 1 10.21.23.5 >/dev/null 2>&1 && VPN_IS="UP"
+	if [[ "$VPN_IS" == "UP" ]]; then
+		vpn "UP"
+	else
+        	touch $VPN_FILE
+        	source $VPN_FILE
+        	case $VPN in
+                	1 ) vpn 2 ;;
+                	2 ) echo "restart vpn" ;;
+                	* ) vpn 1 ;;
+        	esac
+	fi
+else
+       	touch $NET_FILE
+        source $NET_FILE
+        case $NET in
+                1 ) net 2 ;;
+                2 ) echo "reboot" ;;
+                * ) net 1 ;;
+        esac
+fi