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arping - Unix, Linux Command


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NAME

arping - send ARP REQUEST to a neighbour host

SYNOPSIS

arping [ -AbDfhqUV] [ -c count] [ -w deadline] [ -s source] -I interface destination

DESCRIPTION

Ping destination on device interface by ARP packets, using source address source.

OPTIONS

TagDescription
-A The same as -U, but ARP REPLY packets used instead of ARP REQUEST.
-b Send only MAC level broadcasts. Normally arping starts from sending broadcast, and switch to unicast after reply received.
-c count
  Stop after sending count ARP REQUEST packets. With deadline option, arping waits for count ARP REPLY packets, until the timeout expires.
-D Duplicate address detection mode (DAD). See RFC2131, 4.4.1. Returns 0, if DAD succeeded i.e. no replies are received
-f Finish after the first reply confirming that target is alive.
-I interface
  Name of network device where to send ARP REQUEST packets. This option is required.
-h Print help page and exit.
-q Quiet output. Nothing is displayed.
-s source
  IP source address to use in ARP packets. If this option is absent, source address is:
TagDescription
o In DAD mode (with option -D) set to 0.0.0.0.
o In Unsolicited ARP mode (with options -U or -A) set to destination.
o Otherwise, it is calculated from routing tables.
-U Unsolicited ARP mode to update neighbours’ ARP caches. No replies are expected.
-V Print version of the program and exit.
-w deadline
  Specify a timeout, in seconds, before arping exits regardless of how many packets have been sent or received. In this case arping does not stop after count packet are sent, it waits either for deadline expire or until count probes are answered.

SEE ALSO

ping(8), clockdiff(8), tracepath(8).

AUTHOR

arping was written by Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>.

SECURITY

arping requires CAP_NET_RAWIO capability to be executed. It is not recommended to be used as set-uid root, because it allows user to modify ARP caches of neighbour hosts.

AVAILABILITY

arping is part of iputils package and the latest versions are available in source form for anonymous ftp ftp://ftp.inr.ac.ru/ip-routing/iputils-current.tar.gz.


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