1.\" Copyright (c) 1985, 1991, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

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25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)ping.8 8.2 (Berkeley) 12/11/93
33.\" $Id: ping.8,v 1.8 1997/03/01 20:19:18 wollman Exp $
34.\"
35.Dd March 1, 1997
36.Dt PING 8
37.Os BSD 4.3
38.Sh NAME
39.Nm ping
40.Nd send
41.Tn ICMP ECHO_REQUEST
42packets to network hosts
43.Sh SYNOPSIS
44.Nm ping
45.Op Fl QRadfnqrv
46.Op Fl c Ar count
47.Op Fl i Ar wait
48.Op Fl l Ar preload
49.Op Fl p Ar pattern
50.Op Fl s Ar packetsize
51[
52.Ar host
53|
54.Op Fl L
55.Op Fl I Ar interface
56.Op Fl T Ar ttl
57.Ar mcast-group
58]
59.Sh DESCRIPTION
60.Nm Ping
61uses the
62.Tn ICMP
63protocol's mandatory
64.Tn ECHO_REQUEST
65datagram to elicit an
66.Tn ICMP ECHO_RESPONSE

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