.\" Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
.\" All rights reserved.
.\"
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.\" $FreeBSD$
.\"
.Dd June 14, 2002
.Dt L2PING 8
.Os
.Sh NAME
.Nm l2ping
.Nd send L2CAP ECHO_REQUEST to remote devices
.Sh SYNOPSIS
.Nm
.Op Fl a Ar BD_ADDR
.Op Fl S Ar BD_ADDR
.Op Fl c Ar count
.Op Fl f
.Op Fl i Ar delay
.Op Fl s Ar size
.Sh DESCRIPTION
The
.Nm
uses L2CAP
.Dv ECHO_REQUEST
datagram to elicit a L2CAP
.Dv ECHO_RESPONSE
from a remote device.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl a Ar BD_ADDR
Address of remote device to ping.
Example:
.Fl a Li 00:01:02:03:04:05 .
.It Fl S Ar BD_ADDR
Send L2CAP
.Dv ECHO_REQUEST
from local device that has
.Ar BD_ADDR .
Example:
.Fl S Li 00:05:04:03:02:01 .
.It Fl c Ar count
Number of packets to send.
If this option is not specified,
.Nm
will operate until interrupted.
.It Fl f
.Dq Flood
ping, i.e., no delay between packets.
.It Fl i Ar wait
Wait
.Ar wait
seconds between sending each packet.
The default is to wait for one
second between each packet.
This option is ignored if
.Fl f
has been specified.
.It Fl s Ar size
Specify the number of payload bytes to be sent.
The default is 64.
The maximum size is 65531.
Use this option with caution.
Some implementations may not like large sizes and may hang or even crash.
.El
.Sh BUGS
Could collect more statistics.
Could check for duplicated, corrupted and lost packets.
.Sh DIAGNOSTICS
.Ex -std
.Sh SEE ALSO
.Xr netgraph 3 ,
.Xr netgraph 4 ,
.Xr ng_l2cap 4 ,
.Xr l2control 8
.Sh AUTHORS
.An Maksim Yevmenkin Aq m_evmenkin@yahoo.com