Messages in this thread |  | | | Date | Wed, 24 Jan 2001 21:56:34 +0100 | | From | Andi Kleen <> | | Subject | Re: Linux 2.2.16 through 2.2.18preX TCP hang bug triggered by rsync |
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On Wed, Jan 24, 2001 at 11:03:34PM +0300, kuznet@ms2.inr.ac.ru wrote: > Hello! > > > I read through the tcpdump, and it seems that Linux completely ignores > > packets with out-of-window sequence numbers: > > Yes, Linux is __very__ not right doing this. RFC requires to accept > ACK, URG and RST on any segment adjacent to window, even if window > is zero.
It's mostly for security to make it more difficult to nuke connections without knowing the sequence number.
Remember RFC is from a very different internet with much less DoS attacks.
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