What ports does RPC use?

Customers using firewalls may want to control which ports RPC is using so that their firewall router can be configured to forward only these Transmission Control Protocol (UDP and TCP) ports. Many RPC servers in Windows let you specify the server port in custom configuration items such as registry entries.

What is the RPC dynamic port range?

First, the RPC dynamic port range should be restricted to a smaller, more manageable port range that is easier to block by using a firewall or IPsec policy. By default, RPC dynamically allocates ports in the range of 1024 to 5000 for endpoints that do not specify a port on which to listen. This article uses the port range of 5001 to 5021.

Where are the RPC port Key Values located?

The RPC Port key values discussed below are all located in the following key in the registry: Specifies a set of IP port ranges consisting of either all the ports available from the Internet or all the ports not available from the Internet. Each string represents a single port or an inclusive set of ports.