1.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the project nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $Id: ndp.8,v 1.2 1999/10/07 05:26:13 itojun Exp $ 29.\" $FreeBSD$ 30.\" 31.Dd May 17, 1998 32.Dt NDP 8 33.Os KAME 34.\" 35.Sh NAME 36.Nm ndp 37.Nd control/diagnose IPv6 neighbor discovery protocol 38.\" 39.Sh SYNOPSIS 40.Nm ndp 41.Fl a 42.Op Fl ntl 43.Nm ndp 44.Fl A Ar wait 45.Op Fl ntl 46.Nm ndp 47.Fl c 48.Op Fl nt 49.Nm ndp 50.Fl d 51.Op Fl nt 52.Ar hostname 53.Nm ndp 54.Fl f 55.Op Fl nt 56.Ar filename 57.Nm ndp 58.Fl H 59.Nm ndp 60.Fl i 61.Ar interface 62.Nm ndp 63.Fl p 64.Nm ndp 65.Fl P 66.Nm ndp 67.Fl r 68.Nm ndp 69.Fl R 70.Nm ndp 71.Fl s 72.Op Fl nt 73.Ar nodename 74.Ar ether_addr 75.Op temp 76.\" 77.Sh DESCRIPTION 78The 79.Nm 80command manipulates the address mapping table 81used by Neighbor Discovery Protocol (NDP). 82.Bl -tag -width Ds 83.It Fl a 84Dump the currently existing NDP entries. 85.It Fl A Ar wait 86Repeat 87.Fl a 88.Pq dump NDP entries 89every 90.Ar wait 91seconds. 92.It Fl c 93Erase all the NDP entries. 94.It Fl d 95Delete specified NDP entry. 96.It Fl f 97Parse the file specified by 98.Ar filename . 99.It Fl H 100Harmonize consistency between the routing table and the default router 101list; install the top entry of the list into the kernel routing table. 102.It Fl i 103view ND information for specified interface. 104.It Fl l 105Do not truncate numeric IPv6 address. 106.It Fl n 107Do not try to resolve numeric address to hostname. 108.It Fl p 109Show prefix list. 110.It Fl P 111Flush all the entries in the prefix list. 112.It Fl r 113Show default router list. 114.It Fl R 115Flush all the entries in the default router list. 116.It Fl s 117Register a NDP entry for a node. 118.It Fl t 119Print timestamp on each entries, 120to make it possible to merge output with 121.Xr tcpdump 1 . 122Most useful when used with 123.Fl A . 124.El 125.\" 126.Sh RETURN VALUES 127The 128.Nm 129command will exit with 0 on success, and non-zero on errors. 130.\" 131.Sh SEE ALSO 132.Xr arp 8 133.\" 134.Sh HISTORY 135The 136.Nm 137command first appeared in WIDE Hydrangea IPv6 protocol stack kit. 138.\" 139.\" .Sh BUGS 140.\" (to be written) 141