Date: Tue, 7 Sep 2021 10:47:01 +0200 From: Michael Tuexen <michael.tuexen@lurchi.franken.de> To: Rozhuk Ivan <rozhuk.im@gmail.com> Cc: freebsd-net@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: TCP connection ignore RST Message-ID: <1804249E-FD55-4A4A-9895-BCEDF2323137@lurchi.franken.de> In-Reply-To: <20210907051034.5669a02d@rimwks.local> References: <20210904023730.5eddd6fd@rimwks.local> <927CA9E9-AB74-443D-83A7-931325DB7686@lurchi.franken.de> <20210907051034.5669a02d@rimwks.local>
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> On 7. Sep 2021, at 04:10, Rozhuk Ivan <rozhuk.im@gmail.com> wrote: > > On Sat, 4 Sep 2021 13:19:52 +0200 > Michael Tuexen <michael.tuexen@lurchi.franken.de> wrote: > >>> On 4. Sep 2021, at 01:37, Rozhuk Ivan <rozhuk.im@gmail.com> wrote: >>> >>> Hi! >>> >>> >>> I have strange case: FreeBSD 12.2 ignore TCP RST from windows host >>> and continue retransmitting packets. sockstat show that socket >>> connected even after many tcp rst packets received. >>> >>> Any ideas how to fix it? >> Where is the trace taken? On the Windows side or on the FreeBSD side >> or somewhere else? Could you provide the .pcap file? >> > > From FreeBSD side. > > https://reviews.freebsd.org/D28142 e82353f84c58da9a5c38bd471a09936c16a5b6ea > https://reviews.freebsd.org/D28143 d05d908d6d3c85479c84c707f931148439ae826b > sysctl net.inet.tcp.tolerate_missing_ts=1 > this fixes issue for me. That was my first guess, but after double checking, this code is not present in FreeBSD 12.2. However, it is present in stable/12. So could it be that you are using stable/12 and not 12.2? Best regards Michael
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