NAME

       arpsend - send ARP requests

SYNOPSIS

       arpsend -D -e target_ip [ -e target_ip ...]  [-c count] [-w timeout] interface

       arpsend -U -i source_ip [-c count] [-w timeout] interface

DESCRIPTION

       Utility  arpsend sends ARP packets on device interface to detect or update neighbours' ARP
       caches with a given IP.

COMMANDS

       Run utility with one of the following commands:

       -D     Send broadcast ARP request to detect neighbours with target_ip. You have to specify
              target_ip (-e option).

       -U     Send  broadcast  ARP  request  to update neighbours' ARP caches with source_ip. You
              have to specify source_ip (-i option).

OPTIONS

       -c count
              Number of packets to send. Default is infinity.

       -w interval
              Interval between packets, in seconds. Default is 1 second.

       -i source_ip_address
              Set source IP address field in ARP packet.

       -e target_ip_address
              Set target IP address field in ARP packet. Note that  you  can  specify  -e  option
              multiple times to detect many IP addresses in one utility call.

EXIT STATUS

       arpsend  returns  0  upon  successful  execution.  If  something goes wrong, it returns an
       appropriate error code.

       1    EXC_USAGE
              Usage error

       2    EXC_SYSTEM
              System error

       3    EXC_RECV
              ARP reply was received

EXAMPLES

       To  send  request  on  interface  eth0  to  detect  any  neighbour   computers   with   IP
       192.168.10.200:

          arpsend -D -e 192.168.10.200 eth0

       To send request on interface eth0 to update neighbours' ARP caches with IP 192.168.10.200:

          arpsend -U -i 192.168.10.200 eth0

NOTES

       Interface  you  use  have  to  be  arpable  and  not be loopback (i.e.  /sbin/ip link show
       interface should show neither NOARP nor LOOPBACK flags in interface parameters).

SEE ALSO

       vzctl(8).

LICENSE

       Copyright (C) 2000-2011, Parallels, Inc. Licensed under GNU GPL.