Re: [NETFILTER]: xt_TCPMSS: Consider reverse route's MTU in clamp-to-pmtu

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On Jan 24 2008 12:49, Jaco Kroon wrote:
>> 
>> Doesn't the patch "xt_TCPMSS: don't allow netfilter --setmss to increase mss"
>> applied to 2.6.25 about a month ago already do this ?
>
> I haven't followed that.  I'm running stable (2.6.23.14 atm) on most of my
> systems, my notebook is still on -rc8 for 2.6.24.  I've just had a specific
> problem that had a need to be scratched, but yes, based on the description you
> gave that would do _exactly_ that.
>
> Random question: What happens with the case where we explicitly _want_ to break
> the MSS?  In other words, to set it to something insane like 3000 in order to
> test other equipment.

Ideally, no TCPMSS would be needed as TCP does PMTUD itself,
similarly for UDP (though _you_ need to do it yourself there).
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