diff --git a/tunmgr/tunmgr.py b/tunmgr/tunmgr.py
index 47321530bbeb9fa159ea07cd36738e782371250b..3d98f1746022238f3e6ae565a8d4cd5db1f0dfa1 100755
--- a/tunmgr/tunmgr.py
+++ b/tunmgr/tunmgr.py
@@ -3,7 +3,7 @@
 from pytun import TunTapDevice
 import selectors
 import socket
-
+import sys
 
 tun = TunTapDevice()
 
@@ -15,7 +15,7 @@ tun.mtu = 400
 
 tun.up()
 
-PEER = "10.4.25.25"
+PEER = sys.argv[1]
 PORT = 1456
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
 s.bind(('', PORT))