Connection tracking timeout tuning via Netlink

modulename: nfnetlink_cttimeout.ko


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Connection tracking timeout tuning via Netlink
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option enables support for connection tracking timeout
fine-grain tuning. This allows you to attach specific timeout
policies to flows, instead of using the global timeout policy.

If unsure, say `N'.

source code: