1.\" $KAME: ip6addrctl.8,v 1.3 2003/03/22 05:56:41 jinmei Exp $ 2.\" 3.\" Copyright (C) 2001 WIDE Project. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the project nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" $FreeBSD$ 31.\" 32.Dd September 25, 2001 33.Dt IP6ADDRCTL 8 34.Os 35.\" 36.Sh NAME 37.Nm ip6addrctl 38.Nd configure address selection policy for IPv6 and IPv4 39.\" 40.Sh SYNOPSIS 41.Nm 42.Op Cm show 43.Nm 44.Cm add 45.Ar prefix precedence label 46.Nm 47.Cm delete 48.Ar prefix 49.Nm 50.Cm flush 51.Nm 52.Cm install 53.Ar configfile 54.\" 55.Sh DESCRIPTION 56The 57.Nm 58utility manages the policy table of source and destination address 59selection for outgoing IPv4 and IPv6 packets. 60When 61.Nm 62is invoked without an argument or with a single argument 63.Cm show , 64it prints the content of the policy table currently installed in the 65kernel. 66.Pp 67To modify the table, the following operations are available: 68.Bl -tag -width indent 69.It Cm add Ar prefix precedence label 70Add a policy entry. 71The 72.Ar prefix 73argument 74is an IPv6 prefix, which is a key for the entry. 75An IPv4 prefix should be specified with an IPv6 prefix using an 76IPv4-mapped IPv6 address. 77The 78.Ar precedence 79and 80.Ar label 81arguments 82are decimal numbers, which specify the precedence and label values 83for the entry, respectively. 84This operation should be performed without an existing entry for the 85prefix. 86.It Cm delete Ar prefix 87Delete a policy entry specified by 88.Ar prefix , 89which should be an IPv6 prefix. 90A corresponding entry for the prefix should have already been 91installed. 92.It Cm flush 93Delete all existing policy entries in the kernel. 94.It Cm install Ar configfile 95Install policy entries from a configuration file named 96.Ar configfile . 97The configuration file should contain a set of policy entries. 98Each entry is specified in a single line which contains an IPv6 prefix, 99a decimal precedence value, and a decimal label value, separated with 100white space or tab characters. 101In the configuration file, lines beginning with the pound-sign 102.Pq Ql # 103are 104comments and are ignored. 105.El 106.\" 107.Sh EXIT STATUS 108.Ex -std 109.\" 110.Sh SEE ALSO 111.Rs 112.%A "Richard Draves" 113.%T "Default Address Selection for IPv6" 114.%N RFC 3484 115.Re 116.\" 117.Sh HISTORY 118The 119.Nm 120utility first appeared in the KAME IPv6 protocol stack kit. 121The original command name was 122.Nm addrselect , 123but it was then renamed to the current one so that the name would 124describe its function well. 125.\" .Sh BUGS 126.\" (to be written) 127