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.Dd September 25, 2001 31.Dt IP6ADDRCTL 8 32.Os 33.\" 34.Sh NAME 35.Nm ip6addrctl 36.Nd configure address selection policy for IPv6 and IPv4 37.\" 38.Sh SYNOPSIS 39.Nm 40.Op Cm show 41.Nm 42.Cm add 43.Ar prefix precedence label 44.Nm 45.Cm delete 46.Ar prefix 47.Nm 48.Cm flush 49.Nm 50.Cm install 51.Ar configfile 52.\" 53.Sh DESCRIPTION 54The 55.Nm 56utility manages the policy table of source and destination address 57selection for outgoing IPv4 and IPv6 packets. 58When 59.Nm 60is invoked without an argument or with a single argument 61.Cm show , 62it prints the content of the policy table currently installed in the 63kernel. 64.Pp 65To modify the table, the following operations are available: 66.Bl -tag -width indent 67.It Cm add Ar prefix precedence label 68Add a policy entry. 69The 70.Ar prefix 71argument 72is an IPv6 prefix, which is a key for the entry. 73An IPv4 prefix should be specified with an IPv6 prefix using an 74IPv4-mapped IPv6 address. 75The 76.Ar precedence 77and 78.Ar label 79arguments 80are decimal numbers, which specify the precedence and label values 81for the entry, respectively. 82This operation should be performed without an existing entry for the 83prefix. 84.It Cm delete Ar prefix 85Delete a policy entry specified by 86.Ar prefix , 87which should be an IPv6 prefix. 88A corresponding entry for the prefix should have already been 89installed. 90.It Cm flush 91Delete all existing policy entries in the kernel. 92.It Cm install Ar configfile 93Install policy entries from a configuration file named 94.Ar configfile . 95The configuration file should contain a set of policy entries. 96Each entry is specified in a single line which contains an IPv6 prefix, 97a decimal precedence value, and a decimal label value, separated with 98white space or tab characters. 99In the configuration file, lines beginning with the pound-sign 100.Pq Ql # 101are 102comments and are ignored. 103.El 104.\" 105.Sh EXIT STATUS 106.Ex -std 107.\" 108.Sh SEE ALSO 109.Rs 110.%A "Richard Draves" 111.%T "Default Address Selection for IPv6" 112.%N RFC 3484 113.Re 114.\" 115.Sh HISTORY 116The 117.Nm 118utility first appeared in the KAME IPv6 protocol stack kit. 119The original command name was 120.Nm addrselect , 121but it was then renamed to the current one so that the name would 122describe its function well. 123.\" .Sh BUGS 124.\" (to be written) 125