Date: Fri, 26 Aug 2022 18:53:49 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Wojciech Puchar <wojtek@puchar.net> Cc: freebsd-hackers@freebsd.org Subject: Re: ipfw nat problem Message-ID: <71545bb7-a5ea-510f-8d67-4f07fe0887ae@grosbein.net> In-Reply-To: <90b59493-95d6-5b2a-b0dc-2fece0a9df7b@puchar.net> References: <d36e56ff-c7cd-1634-dbc-f76bdb46503c@puchar.net> <623ac39e-2915-463a-9e4c-9f99bae28c69@puchar.net> <bfa7d65a-95d6-1605-8fb0-cf397b79d549@grosbein.net> <c3ce6ec-60c7-f9b7-9c73-1fdcdfee505@puchar.net> <57a9cad0-c2ef-6e1f-2185-0f7563fe3758@grosbein.net> <90b59493-95d6-5b2a-b0dc-2fece0a9df7b@puchar.net>
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26.08.2022 17:42, Wojciech Puchar wrote: > Anyway - with ip.forwarding on ssh still disconnect randomly. Just after much larger amount of data transmitted (like 10-100MB, not <1MB) > > Just on this server. Any ideas what may be wrong? Maybe you use ipfw nat (or natd) and forgot to disable TSO on external interface, so some packets get broken as TSO is not compatible with libalias. I've read some reports that pfnat may have problems with TSO, too.
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