Re: ipfw nat problem

Reply: Wojciech Puchar : "Re: ipfw nat problem"
In reply to: Wojciech Puchar : "Re: ipfw nat problem"
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From: Eugene Grosbein <eugen_at_grosbein.net>
Date: Fri, 26 Aug 2022 11:53:49 UTC

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.