Advanced netfilter configuration


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Advanced netfilter configuration
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
If you say Y here you can select between all the netfilter modules.
If you say N the more unusual ones will not be shown and the
basic ones needed by most people will default to 'M'.

If unsure, say Y.