Kmod-nft-offload -
lsmod | grep nft_offload Create a simple forwarding rule with offload:
nft add table netdev filter nft add chain netdev filter forward type filter hook forward priority 0\; nft add rule netdev filter forward ip daddr 192.168.2.0/24 oif eth1 offload accept The offload keyword is what triggers the kernel to attempt hardware programming. kmod-nft-offload
Check offload status:
nft -a list ruleset # Shows rule handles Check NIC offload counters: lsmod | grep nft_offload Create a simple forwarding
dnf install kmod-nft-offload On Debian/Ubuntu (module may be built-in or named differently, e.g., nft-offload ): especially at 10 GbE
Packet → NIC → Host CPU → nftables (kernel) → Forward/Drop → Host CPU → NIC → Wire Every packet consumes CPU cycles, limiting throughput, especially at 10 GbE, 25 GbE, or higher.
