IPv4 nf_tables nat chain support

modulename: nft_chain_nat_ipv4.ko

configname: CONFIG_NFT_CHAIN_NAT_IPV4

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>IP: Netfilter Configuration
└─>IPv4 nf_tables nat chain support
In linux kernel since version 3.13 (release Date: 2014-01-19)  
This option enables the "nat" chain for IPv4 in nf_tables. This
chain type is used to perform Network Address Translation (NAT)
packet transformations such as the source, destination address and
source and destination ports.

source code: