On Mon, 2 Jul 2007, Phil Dibowitz wrote:
On Mon, Jul 02, 2007 at 09:16:57PM +0200, Krzysztof Oledzki wrote:
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"? ;)
There's already a counterpart for ECN blackholes, so I'm not opposed to it.
However, keeping up with new reports, re-testing existing offenders, etc.
takes up a good chunk of time, so I don't have the time to do it myself. I'm
happy to reference such a site, however.
Indeed and it seems there are more important issues, like similar window
scaling problem for example. :(
Best regards,
Krzysztof Olędzki
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