> What is missing for your use case? For eg., can we store connmark and tc classid in skbinfo of named set in nftables? > the original ips are already stored in conntrack. If you want to store > nat mappings: This is already implemented in nft set infra. > What are you trying to do? Can we have a set based on all possible values (like ip,port,net,iface,mark,etc.) which also stores an IP corresponding to each enrtry and this IP will be used for SNAT or DNAT the traffic matching the set entry?