Netfilter connection tracking support

modulename: nf_conntrack.ko


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Netfilter connection tracking support
In linux kernel since version 2.6.15 (release Date: 2006-01-02)  
Connection tracking keeps a record of what packets have passed
through your machine, in order to figure out how they are related
into connections.

This is required to do Masquerading or other kinds of Network
Address Translation. It can also be used to enhance packet
filtering (see `Connection state match support' below).

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

source code: