ip6addrctl.tproj/ip6addrctl.8

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  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
  56 The
  57 .Nm
  58 utility manages the policy table of source and destination address
  59 selection for outgoing IPv4 and IPv6 packets.
  60 When
  61 .Nm
  62 is invoked without an argument or with a single argument
  63 .Cm show ,
  64 it prints the content of the policy table currently installed in the
  65 kernel.
  66 .Pp
  67 To modify the table, the following operations are available:
  68 .Bl -tag -width indent
  69 .It Cm add Ar prefix precedence label
  70 Add a policy entry.
  71 The
  72 .Ar prefix
  73 argument
  74 is an IPv6 prefix, which is a key for the entry.
  75 An IPv4 prefix should be specified with an IPv6 prefix using an
  76 IPv4-mapped IPv6 address.
  77 The
  78 .Ar precedence
  79 and
  80 .Ar label
  81 arguments
  82 are decimal numbers, which specify the precedence and label values
  83 for the entry, respectively.
  84 This operation should be performed without an existing entry for the
  85 prefix.
  86 .It Cm delete Ar prefix
  87 Delete a policy entry specified by
  88 .Ar prefix ,
  89 which should be an IPv6 prefix.
  90 A corresponding entry for the prefix should have already been
  91 installed.
  92 .It Cm flush
  93 Delete all existing policy entries in the kernel.
  94 .It Cm install Ar configfile
  95 Install policy entries from a configuration file named
  96 .Ar configfile .
  97 The configuration file should contain a set of policy entries.
  98 Each entry is specified in a single line which contains an IPv6 prefix,
  99 a decimal precedence value, and a decimal label value, separated with
 100 white space or tab characters.
 101 In the configuration file, lines beginning with the pound-sign
 102 .Pq Ql #
 103 are
 104 comments 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
 118 The
 119 .Nm
 120 utility first appeared in the KAME IPv6 protocol stack kit.
 121 The original command name was
 122 .Nm addrselect ,
 123 but it was then renamed to the current one so that the name would
 124 describe its function well.
 125 .\" .Sh BUGS
 126 .\" (to be written)