Netfilter Connection Mark Actions

modulename: act_ctinfo.ko

configname: CONFIG_NET_ACT_CTINFO

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>QoS and/or fair queueing
└─>Network packet filtering framework (Netfilter)
└─>Netfilter Connection Mark Actions
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say Y here to allow transfer of a connmark stored information.
Current actions transfer connmark stored DSCP into
ipv4/v6 diffserv and/or to transfer connmark to packet
mark. Both are useful for restoring egress based marks
back onto ingress connections for qdisc priority mapping
purposes.

If unsure, say N.

To compile this code as a module, choose M here: the
module will be called act_ctinfo.

source code: