Even PIX requires an update for this:
http://www.cisco.com/en/US/products/sw/secursw/ps1018/products_tech_note09186a0080743212.shtml
Chris Green wrote:
I received an off-list reply from another user who experienced a
similar problem with new linux kernels and the syn cookie checking
feature. I posted this here to give GTA a chance to investigate.
Vista has been out for over 2 months now and I was amazed how long it
took to find that others were having these problems too. If you want
to verify it, compare IE performance vs Firefox performance hitting my
site at http://www.greenfam.org/gallery2. Anything on my server
seems to be hit even harder than the rest of the net which I can only
attribute to the fact that it is also behind a GB-Ware unit. This
only affects firefox/thunderbird/putty/etc on Vista and not on XP.
GB-Ware is not the only firewall I've had this issue with, so it is by
no means unique. The purpose of my post is to give GTA and others a
chance to test this. I have a workaround which is fine for the few
test deployments we are still doing, but as Vista is now released to
the public this has the potential to get very big quite quickly.
Chris Green
Martin.Hepworth wrote:
Chris
There's lots of other O/S's that can do RFC 1323 auto stack tuning, have
you checked that they work OK and it's not a Vista problem?
--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300
-----Original Message-----
From: Chris Green [mailto:[EMAIL PROTECTED]
Sent: 31 January 2007 12:29
To: [email protected]
Cc: [EMAIL PROTECTED]
Subject: [gb-users] Apparent RFC Compliance Issue with GB Ware -
Affects
Vista Performance
http://www.ietf.org/rfc/rfc1323.txt?number=1323
http://blogs.technet.com/asiasupp/archive/2006/12/14/windows-vista-tcp-
auto-tuning.aspx
We've been trying to locate the source of this issue for two months
now
and it appears to come down to this feature. Disabling the feature in
Vista corrects the performance issue, however since the default is
enabled this is going to affect a large number of people very rapidly.
I would recommend that GTA look very quickly into their compliance
with
this RFC.
Chris Green
Solerant, LLC / AMDG Technology
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