anytun-config - anycast tunneling configuration utility
[ -h|--help ]
[ -L|--log <target>:<level>[,<param1>[,<param2>[..]]]
[ -U|--debug ]
[ -r|--remote-host <hostname|ip> ]
[ -o|--remote-port <port> ]
[ -4|--ipv4-only ]
[ -6|--ipv6-only ]
[ -R|--route <net>/<prefix length> ]
[ -m|--mux <mux-id> ]
[ -w|--window-size <window size> ]
[ -k|--kd-prf <kd-prf type> ]
[ -e|--role <role> ]
[ -E|--passphrase <pass phrase> ]
[ -K|--key <master key> ]
[ -A|--salt <master salt> ]
anytun-config writes routing/connection table entries, that can be read
-L, --log <target>:<level>[,<param1>[,<param2>[..]]]
add log target to logging system. This can be invoked several times
in order to log to different targets at the same time. Every target
hast its own log level which is a number between 0 and 5. Where 0
means disabling log and 5 means debug messages are enabled.
The file target can be used more the once with different levels. If
no target is provided at the command line a single target with the
config syslog:3,anytun-config,daemon is added.
The following targets are supported:
log to syslog daemon, parameters
log to file, parameters <level>[,<path>]
log to standard output, parameters <level>
log to standard error, parameters <level>
This option instructs Anytun to run in debug mode. It implicits -D
(don’t daemonize) and adds a log target with the configuration
stdout:5 (logging with maximum level). In future releases there
might be additional output when this option is supplied.
-r, --remote-host <hostname|ip>
This option can be used to specify the remote tunnel endpoint. In
case of anycast tunnel endpoints, the anycast IP address has to be
used. If you do not specify an address, it is automatically
determined after receiving the first data packet.
-o, --remote-port <port>
The UDP port used for payload data by the remote host (specified
with -p on the remote host). If you do not specify a port, it is
automatically determined after receiving the first data packet.
Resolv to IPv4 addresses only. The default is to resolv both IPv4
and IPv6 addresses.
Resolv to IPv6 addresses only. The default is to resolv both IPv4
and IPv6 addresses.
-R, --route <net>/<prefix length>
add a route to connection. This can be invoked several times.
-m, --mux <mux-id>
the multiplex id to use. default: 0
-w, --window-size <window size>
seqence window size
Sometimes, packets arrive out of order on the receiver side. This
option defines the size of a list of received packets´ sequence
numbers. If, according to this list, a received packet has been
previously received or has been transmitted in the past, and is
therefore not in the list anymore, this is interpreted as a replay
attack and the packet is dropped. A value of 0 deactivates this
list and, as a consequence, the replay protection employed by
filtering packets according to their secuence number. By default
the sequence window is disabled and therefore a window size of 0 is
-k, --kd—prf <kd-prf type>
key derivation pseudo random function
The pseudo random function which is used for calculating the
session keys and session salt.
no random function, keys and salt are set to 0..00
AES in counter mode with 128 Bits, default value
AES in counter mode with 128 Bits
AES in counter mode with 192 Bits
AES in counter mode with 256 Bits
-e, --role <role>
SATP uses different session keys for inbound and outbound traffic.
The role parameter is used to determine which keys to use for
outbound or inbound packets. On both sides of a vpn connection
different roles have to be used. Possible values are left and
right. You may also use alice or server as a replacement for left
and bob or client as a replacement for right. By default left is
-E, --passphrase <pass phrase>
This passphrase is used to generate the master key and master salt.
For the master key the last n bits of the SHA256 digest of the
passphrase (where n is the length of the master key in bits) is
used. The master salt gets generated with the SHA1 digest. You may
force a specific key and or salt by using --key and --salt.
-K, --key <master key>
master key to use for key derivation
Master key in hexadecimal notation, e.g.
01a2b3c4d5e6f708a9b0cadbecfd0fa1, with a mandatory length of 32, 48
or 64 characters (128, 192 or 256 bits).
-A, --salt <master salt>
master salt to use for key derivation
Master salt in hexadecimal notation, e.g.
01a2b3c4d5e6f708a9b0cadbecfd, with a mandatory length of 28
characters (14 bytes).
Add a client with Connection ID (Mux) 12 and add 2 Routes to this
# anytun-config -w 0 -m 12 -K 0123456789ABCDEFFEDCBA9876543210 -A 0123456789ABCDDCBA9876543210 \
-R 192.0.2.0/24 -R 192.168.1.1/32 -e server >> routingtable
Most likely there are some bugs in Anytun. If you find a bug, please
let the developers know at email@example.com. Of course, patches are
anytun(8), anytun-controld(8), anytun-showtables(8)
Othmar Gsenger <firstname.lastname@example.org> Erwin Nindl <email@example.com>
Christian Pointner <firstname.lastname@example.org>
Main web site: http://www.anytun.org/
Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl and Christian
Pointner. This program is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or any later version.