Connection tracking timestamping


Linux Kernel Configuration
└─> Networking support
└─> Networking options
└─> Network packet filtering framework (Netfilter)
└─> Core Netfilter Configuration
└─> Connection tracking timestamping

In linux kernel since version 2.6.39 (release Date: 2011-05-18)  

This option enables support for connection tracking timestamping.
This allows you to store the flow start-time and to obtain
the flow-stop time (once it has been destroyed) via Connection
tracking events.

If unsure, say `N'.