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. Though - I'm not familiar with the problem of SACK vandals either. There appears to be a thread on here, I'll go read it... -- Phil Dibowitz [EMAIL PROTECTED] Open Source software and tech docs Insanity Palace of Metallica http://www.phildev.net/ http://www.ipom.com/ "Never write it in C if you can do it in 'awk'; Never do it in 'awk' if 'sed' can handle it; Never use 'sed' when 'tr' can do the job; Never invoke 'tr' when 'cat' is sufficient; Avoid using 'cat' whenever possible" -- Taylor's Laws of Programming
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