Hi Simon , Pablo I write here and need help found : https://lwn.net/Articles/879034/ and try to start use offload traffic to ethernet card with nftables ans tc . but not work try with Intel xl710 and Mellanox 5 but every time i receive error : RTNETLINK answers: Operation not supported We have an error talking to the kernel Try with kernel 6.1.8 with latest iproute2 and all other software. is there any that need to load in kernel ethtool set hw-tc-offload on on card. in nftables : Error: Could not process rule: Operation not supported idea is to offload tc and netfilter nat to card and reduce cpu load. Best regards, Martin