Netfilter flow table mixed IPv4/IPv6 module

modulename: nf_flow_table_inet.ko

configname: CONFIG_NF_FLOW_TABLE_INET

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Netfilter flow table mixed IPv4/IPv6 module
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This option adds the flow table mixed IPv4/IPv6 support.

To compile it as a module, choose M here.

source code: