On Fri, Sep 27, 2019 at 10:18:38PM +1000, Duncan Roe wrote: > The level 4 protocol is part of the UDP and TCP calculations. > nfq_checksum_tcpudp_ipv4() was using IPPROTO_TCP in this calculation, > which gave the wrong answer for UDP. Thanks Duncan, I sent this patch to fix IPv6 too: https://patchwork.ozlabs.org/patch/1169407/