---
name: "l2ping"
section: "1"
platform: "linux"
package: "bluez-utils"
version: "5.87-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/l2ping"
---

# l2ping(1)

Send L2CAP echo request and receive answer

## Name

l2ping - Send L2CAP echo request and receive answer

## SYNOPSIS

**l2ping** \[*OPTIONS*\] *bd\_addr*

## DESCRIPTION

**[l2ping(1)](/l2ping/1.md)** 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**

## RESOURCES

\<http://www.bluez.org\>

## REPORTING BUGS

\<linux-bluetooth@vger.kernel.org\>

## Author

Maxim Krasnyansky \<maxk@qualcomm.com\>, Marcel Holtmann \<marcel@holtmann.org\>, Nils Faerber \<nils@kernelconcepts.de\>, Adam Laurie \<adam@algroup.co.uk\>.

## Copyright

Free use of this software is granted under the terms of the GNU Lesser General Public Licenses (LGPL).