L2TP IP encapsulation for L2TPv3

modulename: l2tp_ip.ko

configname: CONFIG_L2TP_IP

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>L2TP IP encapsulation for L2TPv3
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
Support for L2TP-over-IP socket family.

The L2TPv3 protocol defines two possible encapsulations for
L2TP frames, namely UDP and plain IP (without UDP). This
driver provides a new L2TPIP socket family with which
userspace L2TPv3 daemons may create L2TP/IP tunnel sockets
when UDP encapsulation is not required. When L2TP is carried
in IP packets, it used IP protocol number 115, so this port
must be enabled in firewalls.

To compile this driver as a module, choose M here. The module
will be called l2tp_ip.