Do not fail on messages received from link-local ipv6

re6st/tunnel.py

@@ -428,7 +428,12 @@ class TunnelManager(object):
         if address[0] == '::1':
             sender = None
         else:
+            try:
                 sender = utils.binFromIp(address[0])
+            except socket.error, e:
+                # inet_pton does not parse '<ipv6>%<iface>'
+                logging.warning('ignored message from %r (%s)', address, e)
+                return
             if not sender.startswith(self._network):
                 return
         if not msg: