Provided by: stuntman-client_1.2.7-1_amd64 
NAME
stunclient - command line app for the STUN protocol
SYNOPSIS
stunclient [OPTIONS] server [port]
DESCRIPTION
stunclient attempts to discover the local host's own external IP address, obtain a port mapping, and
optionally discover properties of the Network Address Translator (NAT) between the host and the the
server.
OPTIONS
The following options are supported.
--mode MODE
--localaddr INTERFACE
--localport PORTNUMBER
--family IPVERSION
--protocol PROTO
--verbosity LOGLEVEL
--help
Details of each option and parameters are as follows.
server
The server parameter is the IP address or FQDN of the remote server to perform the binding tests with.
It is the only required parameter.
* * * * *
port
The port parameter is an optional parameter that can follow the server parameter. The default is 3478
for UDP and TCP.
* * * * *
--mode MODE
Where MODE is either "basic" or "full". "basic" mode is the default and indicates that the client should
perform a STUN binding test only. "full" mode indicates that the client should attempt to diagnose NAT
behavior and filtering methodologies if the server supports this mode. The NAT filtering test is only
supported for UDP.
* * * * *
--localaddr INTERFACE or IPADDRESS
The value for this option may the name of an interface (such as "eth0" or "lo"). Or it may be one of the
available IP addresses assigned to a network interface present on the host (such as "128.23.45.67"). The
interface chosen will be the preferred address for sending and receiving responses with the remote
server. The default is to let the system decide which address to send on and to listen for responses on
all addresses (INADDR_ANY).
* * * * *
--localport PORTNUM
PORTNUM is a value between 1 to 65535. This is the UDP or TCP port that the primary and alternate
interfaces listen on as the primary port for binding requests. If not specified, a randomly available
port chosen by the system is used.
* * * * *
--family IPVERSION
IPVERSION is either "4" or "6" to specify the usage of IPV4 or IPV6. If not specified, the default value
is "4".
* * * * *
--protocol PROTO
PROTO is either "udp" or "tcp". "udp" is the default if this parameter is not specified
* * * * *
--verbosity LOGLEVEL
Sets the verbosity of the logging level. 0 is the default (minimal output and logging). 1 shows
slightly more. 2 and higher shows even more.
* * * * *
--help Prints this help page
EXAMPLES
stunclient stunserver.org 3478
Performs a simple binding test request with the server listening at "stunserver.org"
stunclient --mode full --localport 9999 12.34.56.78
Performs a full set of UDP NAT behavior tests from local port 9999 to the server listening at IP
Address 12.34.56.78 (port 3478)
stunclient --protocol tcp stun.selbie.com
Performs a simple binding test using TCP to server listening on the default port of 3478 at
stun.selbie.com
AUTHOR
john selbie (jselbie@gmail.com)