If this GPO is targeted at server computers running Windows Server 2008 that never move, consider modifying the rules to apply to all network location type profiles. When you have configured the protocols and ports, select Next. To select a protocol by its number, select Custom from the list, and then type the number in the Protocol number box. If you select another protocol, then only packets whose protocol field in the IP header match this rule are permitted through the firewall. Because this is an incoming rule, you typically configure only the local port number To restrict the rule to a specified port number, you must select either TCP or UDP. On the Protocol and Ports page, select the protocol type that you want to allow.If you choose to do this, follow the steps in the Create an Inbound Program or Service Rule procedure in addition to the steps in this procedure to create a single rule that filters network traffic using both program and port criteria. The specified program cannot receive network traffic on other ports, and other programs cannot receive network traffic on the specified port. If you combine the rule types, you get a firewall rule that limits traffic to a specified port and allows the traffic only when the specified program is running. This type of rule is often combined with a program or service rule. This type of rule allows any program that listens on a specified TCP or UDP port to receive network traffic sent to that port. ![]()
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