Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 11 Apr 2006 15:33:15 -0700 | From | Stephen Hemminger <> | Subject | Re: 2.6.17 regression: Very slow net transfer from some hosts |
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On Tue, 11 Apr 2006 23:20:42 +0100 Daniel Drake <dsd@gentoo.org> wrote:
> John Heffner wrote: > > This is almost certainly due to a buggy firewall that doesn't understand > > TCP window scaling. I've usually seen this in the past with OpenBSD > > firewalls. Do you have one of these in your path? > > At home I'm behind a Linux gateway box currently running 2.6.15-rc6 - I > am connected through ethernet to that. > > At my student house I am connected wirelessly to a Linksys WRT54Gv5 > router (the model that doesnt run Linux). > > I have reproduced it at both those locations (same ISP). > > This is very familiar, and I just found the article I was thinking of: > http://lwn.net/Articles/92727/ > > I was also hit by that bug, on the same collection of websites, but that > particular problem was fixed for 2.6.8 or so. So I guess it is extremely > likely that my ISP has broken routers. nmap isn't able to identify the > OS of any ISP routers in my path.
We never fixed it, its kind of hard to fix other peoples equipment ;-)
> > It's a huge ISP over here, so contacting them over technical matters is > not easy... > > Thanks, > Daniel >
Turn off TCP window scaling, your performance will be limited but about as good as you can get with a corrupting firewall in between. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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