l2ping: add page (#10711)

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/l2ping.md

@@ -0,0 +1,32 @@
+# l2ping
+
+> Send an L2CAP echo request and receive an answer.
+> More information: <https://manned.org/l2ping>.
+
+- Ping a Bluetooth device:
+
+`sudo l2ping {{mac_address}}`
+
+- Reverse ping a Bluetooth device:
+
+`sudo l2ping -r {{mac_address}}`
+
+- Ping a Bluetooth device from a specified interface:
+
+`sudo l2ping -i {{hci0}} {{mac_address}}`
+
+- Ping Bluetooth device with a specified sized data package:
+
+`sudo l2ping -s {{byte_count}} {{mac_address}}`
+
+- Ping flood a Bluetooth device:
+
+`sudo l2ping -f {{mac_address}}`
+
+- Ping a Bluetooth device a specified amount of times:
+
+`sudo l2ping -c {{amount}} {{mac_address}}`
+
+- Ping a Bluetooth device with a specified delay between requests:
+
+`sudo l2ping -d {{seconds}} {{mac_address}}`