Primary Considerations

In a corporate network the following main points must be addressed to correctly configure a firewall to support Windows Communication Foundation (WCF) communication:

The user must open the port number on the protocol according to the configuration files (refer to WCF Configuration Files). The Global WCF default protocol is Hypertext Transfer Protocol (HTTP) on port 8000 (the default HTTP Port of 80 is used if a port is not specified).

Each Global project could be configured to run on its own port, so the user may need to open a range of ports.

It is possible to make use of an existing Firewall configuration previously used by Remote Procedure Call (RPC). One of the Transmission Control Protocol (TCP) ports in the dynamic range (ports >1024) can be configured to be used by WCF. If the dynamic port range has been restricted (if the Group policy registry edits as suggested in the original RPC IT Configuration such as 5000-5020), the port used should be within this range.

If RPC is no longer used in a project then the administrator is advised to secure the ports previously used for RPC communication, this is primarily port 135.