[ale] Open Source Firewall for Windows 2000/XP?

Jonathan Glass jonathan.glass at ibb.gatech.edu
Tue Jun 8 09:28:19 EDT 2004


On Tue, 2004-06-08 at 09:19, Geoffrey wrote:
> Jonathan Glass wrote:
> > Let me restate that.  The Windows Firewall I mentioned was using Ip
> > security policies to restrict all incoming traffic, not IPSEC.  I
> > abbreviated improperly.
> > 
> > The problem here is that when you are using IP security policies in
> > 2000/XP, despite what policies you set (deny all incoming), the Windows
> > default behavior is to accept all traffic with a source port of
> > 500|88|(others).
> > 
> > Sorry for the miscommunication.
> 
> Ah, typical M$ solution.  Do what we (M$) is right regardless of what 
> the use specifies.  After all we (M$) know better then the stupid user...
> 
> Is it possible to explicitly block these ports, or are they ALWAYS open?

Therein lies the rub.  I have gone through my client machines, and
killed these services, and closed the ports, but port scanning the
machines using a source port of 500 still allows me full access to the
boxes.  :(
-- 
Jonathan Glass
Systems Support Specialist II
Institute for Bioengineering & Bioscience
Georgia Institute of Technology
Email: jonathan.glass at ibb.gatech.edu
Office: 404-385-0127
Fax: 404-894-2291



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