FTP protocol support

modulename: nf_conntrack_ftp.ko

Linux Kernel Configuration
└─> Networking support
└─> Networking options
└─> Network packet filtering framework (Netfilter)
└─> Core Netfilter Configuration
└─> FTP protocol support

In linux kernel since version 2.6.15 (release Date: 2006-01-02)  

Tracking FTP connections is problematic: special helpers are
required for tracking them, and doing masquerading and other forms
of Network Address Translation on them.

This is FTP support on Layer 3 independent connection tracking.
Layer 3 independent connection tracking is experimental scheme
which generalize ip_conntrack to support other layer 3 protocols.

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

source code: