iptables NAT support

modulename: iptable_nat.ko

configname: CONFIG_IP_NF_NAT

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>IP: Netfilter Configuration
└─>iptables NAT support
In linux kernel since version 2.6.12  
This enables the `nat' table in iptables. This allows masquerading,
port forwarding and other forms of full Network Address Port

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

source code: