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The original was posted on /r/ipv6 by /u/pdp10 on 2023-06-18 14:47:41+00:00.

good morning,

trying to find fastest 1:1 nat (stateless) for linux using a “middle” server between two lan, tried:

• haproxy (tcp mode), ipvs, iptable (dnat and snat black magic), tc…seems all hit a wall and not be able to reach near wire-speed nat, any suggestion?

thank you

(ws01) <----> (middle box nat) <----> (srv01)

ps:

in L2 bridge the middle linux box could reach full wirespeed of 10Gbps with 40% cpu load.