ndp.tproj/ndp.8

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  31 .Dd May 17, 1998
  32 .Dt NDP 8
  33 .Os
  34 .\"
  35 .Sh NAME
  36 .Nm ndp
  37 .Nd control/diagnose IPv6 neighbor discovery protocol
  38 .\"
  39 .Sh SYNOPSIS
  40 .Nm
  41 .Fl a
  42 .Op Fl lnt
  43 .Nm
  44 .Fl A Ar wait
  45 .Op Fl nt
  46 .Nm
  47 .Fl c
  48 .Op Fl nt
  49 .Nm
  50 .Fl d
  51 .Op Fl nt
  52 .Ar hostname
  53 .Nm
  54 .Fl f
  55 .Op Fl nt
  56 .Ar filename
  57 .Nm
  58 .Fl H
  59 .Nm
  60 .Fl I
  61 .Op Cm delete | Ar interface
  62 .Nm
  63 .Fl i
  64 .Ar interface
  65 .Op Ar flags...
  66 .Nm
  67 .Fl p
  68 .Nm
  69 .Fl P
  70 .Nm
  71 .Fl r
  72 .Nm
  73 .Fl R
  74 .Nm
  75 .Fl s
  76 .Op Fl nt
  77 .Ar nodename
  78 .Ar ether_addr
  79 .Op Li temp
  80 .Op Li proxy
  81 .\"
  82 .Sh DESCRIPTION
  83 The
  84 .Nm
  85 command manipulates the address mapping table
  86 used by Neighbor Discovery Protocol (NDP).
  87 .Bl -tag -width Ds
  88 .It Fl a
  89 Dump the currently existing NDP entries.
  90 .It Fl A Ar wait
  91 Repeat
  92 .Fl a
  93 (dump NDP entries)
  94 every
  95 .Ar wait
  96 seconds.
  97 .It Fl c
  98 Erase all the NDP entries.
  99 .It Fl d
 100 Delete specified NDP entry.
 101 .It Fl f
 102 Parse the file specified by
 103 .Ar filename .
 104 .It Fl H
 105 Harmonize consistency between the routing table and the default router
 106 list; install the top entry of the list into the kernel routing table.
 107 .It Fl I Op Cm delete | Ar interface
 108 Shows or specifies the default interface used as the default route when
 109 there is no default router.
 110 If no argument is given to the option,
 111 the current default interface will be shown.
 112 If an
 113 .Ar interface
 114 is specified, the interface will be used as the default.
 115 If a special keyword
 116 .Ic delete
 117 is specified, the current default interface will be deleted from the kernel.
 118 .It Fl i Ar interface Op Ar flags...
 119 View ND information for the specified interface.
 120 If additional arguments
 121 .Ar flags
 122 are given,
 123 .Nm
 124 sets or clears the specified flags for the interface.
 125 Possible flags are as follows.
 126 All of the flags can begin with the
 127 special character
 128 .Ql - ,
 129 which means the flag should be cleared.
 130 .\"
 131 .Bl -tag -width Ds -compact
 132 .It Xo
 133 .Ic nud
 134 .Xc
 135 turn on or off NUD (Neighbor Unreachability Detection) on the
 136 interface.
 137 NUD is usually turned on by default.
 138 .El
 139 .It Fl l
 140 Show link-layer reachability information.
 141 .It Fl n
 142 Do not try to resolve numeric address to hostname.
 143 .It Fl p
 144 Show prefix list.
 145 .It Fl P
 146 Flush all the entries in the prefix list.
 147 .It Fl r
 148 Show default router list.
 149 .It Fl R
 150 Flush all the entries in the default router list.
 151 .It Fl s
 152 Register an NDP entry for a node.
 153 The entry will be permanent unless the word
 154 .Li temp
 155 is given in the command.
 156 If the word
 157 .Li proxy
 158 is given, this system will act as an proxy NDP server,
 159 responding to requests for
 160 .Ar hostname
 161 even though the host address is not its own.
 162 .It Fl t
 163 Print timestamp on each entries,
 164 to make it possible to merge output with
 165 .Xr tcpdump 1 .
 166 Most useful when used with
 167 .Fl A .
 168 .El
 169 .\"
 170 .Sh RETURN VALUES
 171 The
 172 .Nm
 173 command will exit with 0 on success, and non-zero on errors.
 174 .\"
 175 .Sh SEE ALSO
 176 .Xr arp 8
 177 .\"
 178 .Sh HISTORY
 179 The
 180 .Nm
 181 command first appeared in WIDE Hydrangea IPv6 protocol stack kit.
 182 .\"
 183 .\" .Sh BUGS
 184 .\" (to be written)