"ipcomp" match support

modulename: xt_ipcomp.ko


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>"ipcomp" match support
In linux kernel since version 3.14 (release Date: 2014-03-30)  
This match extension allows you to match a range of CPIs(16 bits)
inside IPComp header of IPSec packets.

To compile it as a module, choose M here. If unsure, say N.

source code: