Re: mss to pmtu clamping partially broken?

[Krzysztof Oledzki <ole@ans.pl>]

On Mon, 2 Jul 2007, Phil Dibowitz wrote:

> On Mon, Jul 02, 2007 at 07:04:12PM +0200, Andreas Steinmetz wrote:
> > Jan Engelhardt wrote:
> > > Do you really need clamping? It's a hack, since TCP should do MSS negotiation
> > > itself. (Of course it may happen that some routers are broken.) But usually not
> > > for incoming packets.
> >
> > You never know when you hit ICMP blackholes, broken routers and other
> > evil things. Better safe than sorry so clamping is the way to go for me.
>
> I encourage you to report PMTUD Blackholes to the MSS Initiative at
> http://www.phildev.net/mss/

Any chances for similar initiative for "SACK vandals"? ;)

Best regards,

				Krzysztof Olędzki