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== SYNOPSIS ==
<table width="100%" border="0" rules="none" frame="void" cellspacing="0" cellpadding="0"><tr valign="top" align="left"><td width="11%"></td><td width="11%"> <p style="margin-lefttop:111em"><b>arpsend</b></p></td><td width="1%"></td><td width="77%; "> <p style="margin-top: 1em">arpsend <<b>-U -iD−e </b><i>source_iptarget_ip</i> |[<b>−e </b>-D<i>target_ip </i>...]-e[<b>−c </b><i>target_ipcount</i>][<b>-e−w </b><i>target_iptimeout</i>]<i>interface</i></p></td></tr><tr valign="top" align="left"><td width="11%"></td><td width="11%"> <p style="margin-top: 1em"><b>arpsend</b></p></td><td width="1%"></td><td width="77%"> <p style="margin-top: 1em"><b> minus;... U>minus; i </b><i>source_ip</i>[<b>-−c </b><i>count</i>] [<b>-−w </b> <i>timeout</i>]<i>interface</i></p></td></tr></table>
== DESCRIPTION ==
<td width="3%">
<p><b>-−D</b></p></td>
<td width="8%"></td>
<td width="78%">
<td width="3%">
<p><b>-−U</b></p></td>
<td width="8%"></td>
<td width="78%">
== OPTIONS ==
<p style="margin-left:11%; margin-top: 1em"><b>-−c count</b><i>count</i></p>
<p style="margin-left:22%;">Number of packets to send.
Default is infinity.</p>
<p style="margin-left:11%;"><b>-−w interval</b> <i>interval</i></p>
<p style="margin-left:22%;">Interval between packets, in
seconds. Default is 1 second.</p>
<p style="margin-left:11%;"><b>-−i source_ip_address</b><i>source_ip_address</i></p>
<p style="margin-left:22%;">Set source IP address field in
ARP packet.</p>
<p style="margin-left:11%;"><b>-−e target_ip_address</b><i>target_ip_address</i></p>
<p style="margin-left:22%;">Set target IP address field in
<p style="margin-left:11%; margin-top: 1em">To send request
on interface <ib>eth0</ib> to detect any neighbour computerswith IP <ib>192.168.10.200</ib>: <tt/p> <brpre style="margin-left:11%; margin-top: 1em"> arpsend -D -e 192.168.10.200 eth0</tt></ppre>
<p style="margin-left:11%; margin-top: 1em">To send request
on interface <ib>eth0</ib> to update neighbours’ ARPcaches with IP <ib>192.168.10.200</ib>: <tt/p> <brpre style="margin-left:11%; margin-top: 1em"> arpsend -U -i 192.168.10.200 eth0</tt></ppre>
== NOTES ==
use have to be arpable and not be loopback (i.e. <b>/sbin/ip
link show</b> <i>interface</i> should show neither
<b>NOARP</b> not nor <b>LOOPBACK</b> flags in interface
parameters).</p>