Re: Out of window filter catches too much

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Hi,

On Sat, 26 Feb 2005, Pierre Ossman wrote:

> Since there is only linux machines involved here this must be a kernel
> bug. Either in the TCP layer or in netfilters detection. Here is a dump
> from the router when it starts throwing away packets:
>
> ip_ct_tcp: SEQ is over the upper bound (over the window of the receiver)
> IN= OUT= SRC=10.8.0.24 DST=10.8.5.10 LEN=1500 TOS=0x00 PREC=0x00 TTL=64
> ID=10234 DF PROTO=TCP SPT=3851 DPT=873 SEQ=2763580423 ACK=299956256
> WINDOW=95 RES=0x00 ACK URGP=0 OPT (0101080AC4C2FDE77E1D58C1)
> ip_ct_tcp: SEQ is over the upper bound (over the window of the receiver)

On Mon, 21 Feb 2005 I posted a patch to netfilter-devel which addresses
this and other issues in TCP window tracking. Please try the patch.

Best regards,
Jozsef
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