"socket" match support

modulename: xt_socket.ko

Linux Kernel Configuration
└─> Networking support
└─> Networking options
└─> Network packet filtering framework (Netfilter)
└─> Core Netfilter Configuration
└─> The IPv6 protocol
└─> The IPv6 protocol
└─> "socket" match support

In linux kernel since version 2.6.28 (release Date: 2008-12-24)  

This option adds a `socket' match, which can be used to match
packets for which a TCP or UDP socket lookup finds a valid socket.
It can be used in combination with the MARK target and policy
routing to implement full featured non-locally bound sockets.

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

source code: