---
name: "l2ping"
section: "8"
platform: "linux"
package: "bluez"
version: "4.99-2"
release: "Debian 7 (Wheezy)"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/l2ping/8"
---

# l2ping(8)

Send L2CAP echo request and receive answer

## NAME

l2ping - Send L2CAP echo request and receive answer

## SYNOPSIS

**l2ping** \[**-i** *\<hciX\>*\] \[**-s** *size*\] \[**-c** *count*\] \[**-t** *timeout*\] \[**-d** *delay*\] \[**-f**\] \[**-r**\] \[**-v**\] *bd\_addr*

## DESCRIPTION

L2ping sends a L2CAP echo request to the Bluetooth MAC address *bd\_addr* given in dotted hex notation.

## OPTIONS

- **-i** *\<hciX\>*

  The command is applied to device hciX , which must be the name of an installed Bluetooth device (X = 0, 1, 2, ...) If not specified, the command will be sent to the first available Bluetooth device.

- **-s** *size*

  The *size* of the data packets to be sent.

- **-c** *count*

  Send *count* number of packets then exit.

- **-t** *timeout*

  Wait *timeout* seconds for the response.

- **-d** *delay*

  Wait *delay* seconds between pings.

- **-f**

  Kind of flood ping. Use with care! It reduces the delay time between packets to 0.

- **-r**

  Reverse ping (gnip?). Send echo response instead of echo request.

- **-v**

  Verify response payload is identical to request payload. It is not required for remote stacks to return the request payload, but most stacks do (including Bluez).

- *bd\_addr*

  The Bluetooth MAC address to be pinged in dotted hex notation like **01:02:03:ab:cd:ef** or **01:EF:cd:aB:02:03**

## AUTHORS

Written by Maxim Krasnyansky \<maxk@qualcomm.com\> and Marcel Holtmann \<marcel@holtmann.org\>

man page by Nils Faerber \<nils@kernelconcepts.de\>, Adam Laurie \<adam@algroup.co.uk\>.