IEEE 802.15.4 loopback driver

modulename: fakelb.ko

configname: CONFIG_IEEE802154_FAKELB

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>IEEE 802.15.4 drivers
└─>IEEE 802.15.4 loopback driver
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say Y here to enable the fake driver that can emulate a net
of several interconnected radio devices.

This driver can also be built as a module. To do so say M here.
The module will be called 'fakelb'.

source code: