On 2007-04-23 10:26, Gabriele Bulfon wrote:
> I have more data:
> - Some servers run fine, and there I have the original IPFilter that
> comes with Solaris 10
> - The ones that fail, are those that I upgraded to IPFilter 4.1.9 or
> 4.1.10 by rebuilding from sources (something was not correctly working
> on AMD installations, so I had to upgrade).
> 
> What I don't understand, is why this problem comes up only if I connect
> through Vista, and only on some ports.

Maybe you have TCP window issues, or maybe Vista uses ECN in a way your
ipfilter config doesn't allow for.

I recommend you examine TCP flags and options in your packet traces to
see if there's a difference there between XP and Vista.

-- 
Jefferson Ogata <[EMAIL PROTECTED]>
NOAA Computer Incident Response Team (N-CIRT) <[EMAIL PROTECTED]>
"Never try to retrieve anything from a bear."--National Park Service

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