Daniel Drake wrote:
Stephen Hemminger wrote:
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 ;-)
Weird, things started working for me around 2.6.9 without having to
modify any sysctl stuff.
Ah, I remember now. 2.6.7 introduced the tcp_default_win_scale
variable, and 2.6.9 got rid of it, doing the calculation based on the
max possible tcp rcvbuf. This is conceptually the right thing to do,
regardless of broken middleboxes, but had the side effect of hiding this
latent problem a bit longer.
Thanks,
-John
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