\"      $NetBSD: arp.8,v 1.27 2021/12/05 07:11:56 msaitoh Exp $
\"
\" Copyright (c) 1985, 1991, 1993
\"      The Regents of the University of California.  All rights reserved.
\"
\" Redistribution and use in source and binary forms, with or without
\" modification, are permitted provided that the following conditions
\" are met:
\" 1. Redistributions of source code must retain the above copyright
\"    notice, this list of conditions and the following disclaimer.
\" 2. Redistributions in binary form must reproduce the above copyright
\"    notice, this list of conditions and the following disclaimer in the
\"    documentation and/or other materials provided with the distribution.
\" 3. Neither the name of the University nor the names of its contributors
\"    may be used to endorse or promote products derived from this software
\"    without specific prior written permission.
\"
\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\" SUCH DAMAGE.
\"
\"      from: @(#)arp.8 8.2 (Berkeley) 4/27/95
\"
Dd December 5, 2021
Dt ARP 8
Os
Sh NAME
Nm arp
Nd address resolution display and control
Sh SYNOPSIS
Nm
Op Fl n
Ar hostname
Nm
Op Fl nv
Fl a
Nm
Op Fl v
Fl d
Fl a
Nm
Op Fl v
Fl d Ar hostname
Op Cm proxy
Nm
Fl s Ar hostname ether_addr
Op Cm temp
Op Cm pub Op Cm proxy
Nm
Fl f Ar filename
Sh DESCRIPTION
The
Nm
program displays and modifies the Internet-to-Ethernet address translation
tables used by the address resolution protocol
Pq Xr arp 4 .
With no flags, the program displays the current
Tn ARP
entry for
Ar hostname .
The host may be specified by name or by number,
using Internet dot notation.
Pp
The state of the arp entry is shown as a single letter preceded by the
time the state is applicable for:
Bl -tag -width indent -compact
It D
Delay
It I
Incomplete
It N
Nostate
It P
Probe
It R
Reachable
It S
Stale
It U
Unreachable
It W
Waitdelete
It ?
Unknown state (should never happen).
El
Pp
Available options:
Bl -tag -width Ds
It Fl a
The program displays all of the current
Tn ARP
entries.
It Fl d
A super-user may delete an entry for the host called
Ar hostname
with the
Fl d
flag.
If the
Cm proxy
keyword is specified, only the published
Dq proxy only
Tn ARP
entry
for this host will be deleted.
If used with
Fl a
instead of a
Ar hostname ,
it will delete all arp entries.
It Fl f
Causes the file
Ar filename
to be read and multiple entries to be set in the
Tn ARP
tables.
Entries in the file should be of the form
Pp
Bd -filled -offset indent -compact
Ar hostname ether_addr
Op Cm temp
Op Cm pub
Ed
Pp
with argument meanings as described below.
It Fl n
Show network addresses as numbers (normally
Nm
attempts to display addresses symbolically).
It Fl s Ar hostname ether_addr
Create an
Tn ARP
entry for the host called
Ar hostname
with the Ethernet address
Ar ether_addr .
The Ethernet address is given as six hex bytes separated by colons.
The entry will be permanent unless the word
Cm temp
is given in the command.
If the word
Cm pub
is given, the entry will be "published"; i.e., this system will
act as an
Tn ARP
server,
responding to requests for
Ar hostname
even though the host address is not its own.
Pp
If the word
Cm proxy
is also given, the published entry will be a
Dq proxy only
entry.
In this case the
Ar ether_addr
can be given as
Cm auto
in which case the interfaces on this host will be examined,
and if one of them is found to occupy the same subnet, its
Ethernet address will be used.
It Fl v
Display verbose information when adding or deleting
Tn ARP
entries.
El
Sh SEE ALSO
Xr inet 3 ,
Xr arp 4 ,
Xr ifconfig 8
Sh HISTORY
The
Nm
command appeared in
Bx 4.3 .

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.