diff --git a/xl2tpd.sh b/xl2tpd.sh
new file mode 100644
index 0000000..6cd1a71
--- /dev/null
+++ b/xl2tpd.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# xl2tpd.sh -- xl2tpd connect / disconnect
+#
+# Copyright (C) 2014 Zeno Zeng <zenoofzeng@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+xl2tpd_restart() {
+
+    # for Openwrt / Debian / Ubuntu
+    type systemctl >/dev/null 2>&1 || {
+        /etc/init.d/xl2tpd restart
+    }
+
+    # for arch linux
+    type systemctl >/dev/null 2>&1 && {
+        systemctl xl2tpd restart
+    }
+    
+    # wait until ready
+    for i in $(seq 0 "${TIMEOUT}"); do
+        if [ -e "/var/run/xl2tpd/l2tp-control" ]; then
+            return 0
+        fi
+        sleep 1
+    done
+
+}
+
+connect() {
+    username=$1
+    password=$2
+
+    # TODO
+}
+
+disconnect() {
+    username=$1
+    password=$2
+
+    # TODO
+}
+
+
+case $1 in
+
+    connect)
+        connect $2 $3
+        ;;
+
+    disconnect)
+        disconnect $2 $3
+        ;;
+
+esac