Network light weight tunnels

modulename: lwtunnel.ko

configname: CONFIG_LWTUNNEL

Linux Kernel Configuration
└─>Networking support
└─>Network light weight tunnels
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This feature provides an infrastructure to support light weight
tunnels like mpls. There is no netdevice associated with a light
weight tunnel endpoint. Tunnel encapsulation parameters are stored
with light weight tunnel state associated with fib routes.

source code:
depends
CONFIG_NET