This is the command stunc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
stunc - STUN test client. STUN test client
Author:
Pekka Pessi [email protected]
Martti Mela [email protected]
Kai Vehmanen [email protected]
Date:
Created: Thu Jul 24 17:21:00 2003 ppessi
Synopsis
stunc [OPTIONS] <stun-server-address>
Description
The stunc utility can be used to gather information about possible NAT devices that are
located between the client and STUN server.
stunc can provide the following information: the IP address and port as seen by the STUN
server, detecting presence of NATs, and hints on the type of address translation done. It
should be noted that the results of NAT type and life-time detection should be considered
as hints. There is no guarantee that NAT(s) will handle future packets in the same way.
Command Line Options
The stunc utility accepts following command line options:
-b Perform a STUN binding discovery. stunc will report the client transport address
(IP:port) as seen by the STUN server. In the presence of NATs, this address is
allocated by the NAT closest to the STUN server.
-l Perform a STUN binding life-time check.
-n Perform a STUN binding type check. Notice that the results are only hints.
Nondeterministic behaviour, resource exhaustion, or reboots of network elements can
cause changes in NAT behaviour between successive runs of stunc.
-r Randomize the local port. Otherwise stunc let's the operating system select a free
port.
-s Request a shared-secret over TLS. Tests whether the STUN server supports the shared-
secret mechanism (needed to protect message integrity). Can be combined with -b, -l
and -n.
Return Codes
0when successful 1when any errors detected
Examples
Discover the NAT binding, use a random local port:
$ stunc stunserver.org -b -r
Environment
#STUN_DEBUG
Reporting Bugs
Report bugs to [email protected].
Authors
· Pekka Pessi <pekka -dot pessi -at- nokia -dot- com>
· Martti Mela <martti -dot mela -at- nokia -dot- com>
· Kai Vehmanen <kai -dot vehmanen -at- nokia -dot- com>
Copyright
Copyright (C) 2005,2006 Nokia Corporation.
This program is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Use stunc online using onworks.net services
