You create firewall rules to allow this computer to send traffic to, or receive traffic from, programs, system services, computers, or users. Firewall rules can be created to take one of three actions for all connections that match the rule's criteria:

  • Allow the connection.

  • Allow a connection only if it is secured through the use of Internet Protocol security (IPsec).

  • Block the connection.

Rules can be created for either inbound traffic or outbound traffic. The rule can be configured to specify the computers or users, program, service, or port and protocol. You can specify which type of network adapter the rule will be applied to: local area network (LAN), wireless, remote access, such as a virtual private network (VPN) connection, or all types. You can also configure the rule to be applied when any profile is being used or only when a specified profile is being used.

As your IT environment changes, you might have to change, create, disable, or delete rules.

Additional references


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