Network recommendations to fully utilize the Belastingdienst filetransfer capabilities

To fully use the potential op Belastingdienst filetransfer we recommend the following configuration in your infrastructure. This configuration is needed for using the "FASP protocol" .

• Open port 33001 outbound to filetransfer.belastingdienst.nl on both TCP and UDP.
• If you have an IDP (Intrusion Detection and Prevention) system and have intermittent issues with sending and receiving files, configure the IDP to allow or ignore the FASP protocol.