162 lines
4.0 KiB
Groff
162 lines
4.0 KiB
Groff
.\" $NetBSD: arp.8,v 1.24 2018/07/06 00:50:05 christos 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 July 5, 2018
|
|
.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
|
|
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 .
|