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L2PING(8)		FreeBSD	System Manager's Manual		     L2PING(8)

NAME
     l2ping -- send L2CAP ECHO_REQUEST to remote devices

SYNOPSIS
     l2ping [-fhn] -a remote [-c count]	[-i wait] [-S source] [-s size]

DESCRIPTION
     The l2ping	utility	uses L2CAP ECHO_REQUEST	datagram to elicit an L2CAP
     ECHO_RESPONSE datagram from a remote device.

     The options are as	follows:

     -a	remote
	     Specify the remote	device to ping.	 The remote device can be
	     specified by either its BD_ADDR or	name.  If name was specified
	     then the l2ping utility will attempt to resolve the name via
	     bt_gethostbyname(3).

     -c	count
	     Number of packets to send.	 If this option	is not specified,
	     l2ping will operate until interrupted.

     -f	     Don't wait	between	sending	each packet.

     -h	     Display usage message and exit.

     -i	wait
	     Wait wait seconds between sending each packet.  The default is to
	     wait for one second between each packet.  This option is ignored
	     if	-f has been specified.

     -n	     Numeric output only.  No attempt will be made to look up symbolic
	     names for host addresses.

     -S	source
	     Specify the local device which should be used to send L2CAP
	     ECHO_REQUEST datagrams.  The local	device can be specified	by
	     either its	BD_ADDR	or name.  If name was specified	then the
	     l2ping utility will attempt to resolve the	name via
	     bt_gethostbyname(3).

     -s	size
	     Specify the number	of payload bytes to be sent.  The default size
	     is	44 bytes.  It is calculated as minimum L2CAP MTU (48 bytes)
	     minus the size of the L2CAP signalling command header (4 bytes).
	     The maximum size is 65531 bytes.  Is is calculated	as maximum
	     L2CAP MTU (65535 bytes) minus four	bytes of payload reserved for
	     l2ping internal use.  Use this option with	caution.  Some imple-
	     mentations	may not	like large sizes and may hang or even crash.

EXIT STATUS
     The l2ping	utility	exits 0	on success, and	>0 if an error occurs.

SEE ALSO
     bluetooth(3), netgraph(3),	netgraph(4), ng_l2cap(4), l2control(8)

AUTHORS
     Maksim Yevmenkin <emax@FreeBSD.org>

BUGS
     Could collect more	statistic.  Could check	for duplicated,	corrupted and
     lost packets.

FreeBSD	9.2			March 29, 2011			   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | SEE ALSO | AUTHORS | BUGS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=l2ping&manpath=FreeBSD+9.2-RELEASE>

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