default or selected kernelversion does not have config value CONFIG_NF_NAT_IPV4.
Result is shown for kernelversion 6.9.9
IPv4 NAT
modulename: nf_nat_ipv4.ko
configname: CONFIG_NF_NAT_IPV4
Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>IP: Netfilter Configuration
└─>IPv4 NAT
In linux kernel since version 3.1 (release Date: 2011-10-24)
The IPv4 NAT option allows masquerading, port forwarding and other
forms of full Network Address Port Translation. This can be
controlled by iptables or nft.
forms of full Network Address Port Translation. This can be
controlled by iptables or nft.