peer adress as a param

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))