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6TUNNEL(1)		    General Commands Manual		    6TUNNEL(1)

NAME
       6tunnel - tunnelling for	application that don't speak IPv6

SYNOPSIS
       6tunnel	[ -146dhfv ] [ -u username ] [ -i password ] [ -I password ] [
       -l local_host ] [ -L limit ] [ -p pid_file ] [ -m map_file ] local_port
       remote_host [ remote_port ]

DESCRIPTION
       6tunnel	allows	you  to	 use  services	provided  by  IPv6  hosts with
       IPv4-only applications and vice-versa. It can bind to any of your  IPv4
       (default)  or  IPv6 addresses and forward all data to IPv4 or IPv6 (de-
       fault) host. For	example

	      6tunnel -1 6668 irc6.net 6667

       will be enough to connect to IPv6 irc server with

	      irc foobar localhost:6668

       If you don't wish to run	6tunnel	every  time  you  want	to  show  your
       :c001:  or  :dead: IPv6 address on IRC, you can use -i parameter, which
       makes 6tunnel ask your client for specified password. Just run

	      6tunnel -i dupa.8	31337 irc6.net 6667

       and then	type

	      irc foobar localhost:31337:dupa.8

       If your IRC server requires you to send password, specify  it  with  -I
       parameter -- after successful proxy authentication 6tunnel will send it
       to the server.

       6tunnel can also	be used	as a tunnel for	all other combinations of IPv4
       and  IPv6  endpoints.  If  remote host doesn't have any IPv6 addresses,
       6tunnel will use	the IPv4 one. In other cases, use -4  parameter	 which
       makes  IPv4  address  the preferred one.	For IPv6-to-any	tunnels	use -6
       which makes 6tunnel bind	to IPv6	address.

OPTIONS
       -1     Exit after first connection.

       -4     Prefer IPv4 endpoint if the machine has both address types.

       -6     Listen on	IPv6 address (IPv4 is default).

       -d     Don't detach.

       -f     Force tunneling even if remote host is not resolvable at the ex-
	      ecution time.

       -h     Print hex	dump of	every packet received or sent.

       -u username
	      Change UID and GID after bind().

       -i password
	      Act as an	IRC proxy and require user to authenticate.

       -I password
	      If  you are using	6tunnel	as an IRC proxy	and the	IRC server re-
	      quires you to send password, place it right here.

       -l local_host
	      Listen on	specified address (IPv4, or IPv6 if -6 used).

       -L limit
	      Limit simultaneous connections.

       -p pid_file
	      Write down pid to	specified file.

       -s source_host
	      Connect to the remote host using specified source	address.

       -m map_file
	      Binds to specified IPv6 addresses	on basis of  source  IPv4  ad-
	      dress.  The  file	contains one mapping per line with IPv4	source
	      address and corresponding	IPv6 address. Only  listed  hosts  are
	      allowed  to  connect. If you want	to allow any host, add mapping
	      for default or 0.0.0.0 address. Example:

	      192.168.0.2 3ffe:8010:18::1000:2
	      192.168.0.3 3ffe:8010:18::1000:3

       -v     Be verbose and don't detach.

NOTES
       Option -H to disable all	resolver hints has been	removed	 since	proper
       combination of -4 and -6	will yield in any combination of IPv4 and IPv6
       sources and destinations.

SIGNALS
       Sending SIGHUP forces map file reload.

THANKS
       #ipv6 crew, Lam.

BUGS
       Terrible	man page. Hex dump doesn't include IRC	proxy  authentication.
       IRC  proxy  requires  your  client  to send password first (don't worry
       ircii, EPIC, BitchX, mIRC and many more will work). No  logging	except
       debug output.

AUTHORS
       Wojtek	Kaniewski   (wojtekka@toxygen.net),   Dariusz  Jackowski  (as-
       cent@linux.pl), Ramunas Lukosevicus (lukoramu@parok.lt),	Roland	Stigge
       (stigge@antcom.de)

SEE ALSO
       ssh(1)

				 Oct 19, 2019			    6TUNNEL(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | SIGNALS | THANKS | BUGS | AUTHORS | SEE ALSO

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