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'\" t
.\" Title: anytun-config
.\" Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\" Date: 01/06/2020
.\" Manual: \ \&
.\" Source: \ \&
.\" Language: English
.\"
.TH "ANYTUN\-CONFIG" "8" "01/06/2020" "\ \&" "\ \&"
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.\" * Define some portability stuff
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.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
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.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
anytun-config \- anycast tunneling configuration utility
.SH "SYNOPSIS"
.sp
.nf
\fBanytun\-config\fR
[ \fB\-h|\-\-help\fR ]
[ \fB\-L|\-\-log\fR <target>:<level>[,<param1>[,<param2>[\&.\&.]]]
[ \fB\-U|\-\-debug\fR ]
[ \fB\-r|\-\-remote\-host\fR <hostname|ip> ]
[ \fB\-o|\-\-remote\-port\fR <port> ]
[ \fB\-4|\-\-ipv4\-only\fR ]
[ \fB\-6|\-\-ipv6\-only\fR ]
[ \fB\-R|\-\-route\fR <net>/<prefix length> ]
[ \fB\-m|\-\-mux\fR <mux\-id> ]
[ \fB\-w|\-\-window\-size\fR <window size> ]
[ \fB\-k|\-\-kd\-prf\fR <kd\-prf type> ]
[ \fB\-e|\-\-role\fR <role> ]
[ \fB\-E|\-\-passphrase\fR <pass phrase> ]
[ \fB\-K|\-\-key\fR <master key> ]
[ \fB\-A|\-\-salt\fR <master salt> ]
.fi
.SH "DESCRIPTION"
.sp
\fBanytun\-config\fR writes routing/connection table entries, that can be read by \fBanytun\-controld\fR\&.
.SH "OPTIONS"
.PP
\fB\-L, \-\-log \fR\fB\fI<target>:<level>[,<param1>[,<param2>[\&.\&.]]]\fR\fR
.RS 4
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
\fIsyslog:3,anytun\-config,daemon\fR
is added\&.
The following targets are supported:
.PP
\fIsyslog\fR
.RS 4
log to syslog daemon, parameters <level>[,<logname>[,<facility>]]
.RE
.PP
\fIfile\fR
.RS 4
log to file, parameters <level>[,<path>]
.RE
.PP
\fIstdout\fR
.RS 4
log to standard output, parameters <level>
.RE
.PP
\fIstderr\fR
.RS 4
log to standard error, parameters <level>
.RE
.RE
.PP
\fB\-U, \-\-debug\fR
.RS 4
This option instructs
\fBAnytun\fR
to run in debug mode\&. It implicits
\fB\-D\fR
(don\(cqt daemonize) and adds a log target with the configuration
\fIstdout:5\fR
(logging with maximum level)\&. In future releases there might be additional output when this option is supplied\&.
.RE
.PP
\fB\-r, \-\-remote\-host \fR\fB\fI<hostname|ip>\fR\fR
.RS 4
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\&.
.RE
.PP
\fB\-o, \-\-remote\-port \fR\fB\fI<port>\fR\fR
.RS 4
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\&.
.RE
.PP
\fB\-4, \-\-ipv4\-only\fR
.RS 4
Resolv to IPv4 addresses only\&. The default is to resolv both IPv4 and IPv6 addresses\&.
.RE
.PP
\fB\-6, \-\-ipv6\-only\fR
.RS 4
Resolv to IPv6 addresses only\&. The default is to resolv both IPv4 and IPv6 addresses\&.
.RE
.PP
\fB\-R, \-\-route \fR\fB\fI<net>/<prefix length>\fR\fR
.RS 4
add a route to connection\&. This can be invoked several times\&.
.RE
.PP
\fB\-m, \-\-mux \fR\fB\fI<mux\-id>\fR\fR
.RS 4
the multiplex id to use\&. default: 0
.RE
.PP
\fB\-w, \-\-window\-size \fR\fB\fI<window size>\fR\fR
.RS 4
seqence window size
Sometimes, packets arrive out of order on the receiver side\&. This option defines the size of a list of received packets\*(Aq 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 used\&.
.RE
.PP
\fB\-k, \-\-kd\(emprf \fR\fB\fI<kd\-prf type>\fR\fR
.RS 4
key derivation pseudo random function
The pseudo random function which is used for calculating the session keys and session salt\&.
Possible values:
.PP
\fInull\fR
.RS 4
no random function, keys and salt are set to 0\&.\&.00
.RE
.PP
\fIaes\-ctr\fR
.RS 4
AES in counter mode with 128 Bits, default value
.RE
.PP
\fIaes\-ctr\-128\fR
.RS 4
AES in counter mode with 128 Bits
.RE
.PP
\fIaes\-ctr\-192\fR
.RS 4
AES in counter mode with 192 Bits
.RE
.PP
\fIaes\-ctr\-256\fR
.RS 4
AES in counter mode with 256 Bits
.RE
.RE
.PP
\fB\-e, \-\-role \fR\fB\fI<role>\fR\fR
.RS 4
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
\fBleft\fR
and
\fBright\fR\&. You may also use
\fBalice\fR
or
\fBserver\fR
as a replacement for
\fBleft\fR
and
\fBbob\fR
or
\fBclient\fR
as a replacement for
\fBright\fR\&. By default
\fBleft\fR
is used\&.
.RE
.PP
\fB\-E, \-\-passphrase \fR\fB\fI<pass phrase>\fR\fR
.RS 4
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
\fB\-\-key\fR
and
\fB\-\-salt\fR\&.
.RE
.PP
\fB\-K, \-\-key \fR\fB\fI<master key>\fR\fR
.RS 4
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)\&.
.RE
.PP
\fB\-A, \-\-salt \fR\fB\fI<master salt>\fR\fR
.RS 4
master salt to use for key derivation
Master salt in hexadecimal notation, e\&.g\&. 01a2b3c4d5e6f708a9b0cadbecfd, with a mandatory length of 28 characters (14 bytes)\&.
.RE
.SH "EXAMPLES"
.sp
Add a client with Connection ID (Mux) 12 and add 2 Routes to this client
.sp
.if n \{\
.RS 4
.\}
.nf
# anytun\-config \-w 0 \-m 12 \-K 0123456789ABCDEFFEDCBA9876543210 \-A 0123456789ABCDDCBA9876543210 \e
\-R 192\&.0\&.2\&.0/24 \-R 192\&.168\&.1\&.1/32 \-e server >> routingtable
.fi
.if n \{\
.RE
.\}
.SH "BUGS"
.sp
Most likely there are some bugs in \fBAnytun\fR\&. If you find a bug, please let the developers know at satp@anytun\&.org\&. Of course, patches are preferred\&.
.SH "SEE ALSO"
.sp
anytun(8), anytun\-controld(8), anytun\-showtables(8)
.SH "AUTHORS"
.sp
Othmar Gsenger <otti@anytun\&.org> Erwin Nindl <nine@anytun\&.org> Christian Pointner <equinox@anytun\&.org>
.SH "RESOURCES"
.sp
Main web site: http://www\&.anytun\&.org/
.SH "COPYING"
.sp
Copyright (C) 2007\-2014 Markus Grüneis, 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\&.
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