[AG-TECH] Firewalls for the AG

[Todd Needham]

The XP firewall is "stateless" and doesn't try to inspect every packet.
On one hand this means that it can't do the fancy decision making that
ZoneAlarm and Sygate do.  On the other hand, it doesn't have the
performance issues under a lot of traffic that they do (so it works well
for applications like Access Grid and Conference XP).

 

You can programmatically open & close ports for the Windows XP Firewall.
The source code for how ConferenceXP does this is in the Firewall.cs
file in the MSR.LST.Net.Rtp project (see http://www.conferencexp.net
<http://www.conferencexp.net/>  to download). For descriptions on how
the Windows XP Firewall works and how to program it, see the
documentation on MSDN (http://msdn.microsoft.com
<http://msdn.microsoft.com/> ).  There's a URL to use Google to search
MSDN for Firewall documentation & APIs & sample code:

 

http://www.google.com/search?sourceid=navclient&q=site%3Amsdn%2Emicrosof
t%2Ecom+firewall

 

Hope this helps...

 

Todd Needham

Manager, Research Programs Group

Microsoft Research

http://research.microsoft.com <http://research.microsoft.com>  

________________________________

From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On
Behalf Of Chris Rosenthal
Sent: Thursday, July 08, 2004 11:07 AM
To: ag-tech at mcs.anl.gov
Cc: ag-tech at evl.uic.edu
Subject: [AG-TECH] Firewalls for the AG

 

Hello,

 

I'm creating an all-in-one WinXP node and we're having some trouble with
the firewall.  I've tried ZoneAlarm and Sygate, but they both seem to
hog the CPU when there's a lot of multicast traffic.  I haven't been
able to configure the WinXP firewall to allow multicast traffic.

 

What firewall are you using with WinXP and how well is it working with
the AG?

 

I appreciate your comments.

 

Thanks,

Chris

 

------------------------------------------------------------------------
------------

Chris Rosenthal

Phone: (312) 996-3002

Email: cmr at evl.uic.edu

Electronic Visualization Laboratory

University of Illinois - Chicago

 

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