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How to open ALL ports in Windows firewall to a certain IP address using Group Policy

Posted on 2007-11-30
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Last Modified: 2012-08-14
For debugging purposes I really need to stop the Windows firewall (configured by Group Policy) on our client machines (XP) from blocking anything on any port from a specific LAN IP address (10.0.0.x)

However in the Windows firewall settings on individual machines it does not allow port ranges to be opened, only specific numeric ports.

Is there a way of setting a rule in Windows firewall to allow ALL incoming ports from a certain IP address?
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Question by:grjitdept
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thigger_uk earned 500 total points
ID: 20383477
Sadly Windows XP firewall requires you to specify ports individually - there's no way to specify a range.

However, if it's a single program you're using for your debugging purposes you can specify the program you wish the firewall to give access to rather than the port range.

As far as allowing access from the specified ip (you probably already know this) you can define the scope of the rule (use the 'change scope' button) to apply only to certain ips.

Your best bet if you really need a port-based rule is to install a different firewall which allows ranges and turn the Windows one off.
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