# TIBCO Accelerator Ports

TIBCO Accelerator listens on different ports based on coming requests.

By default, the TIBCO Accelerator listens on the following ports:

- Port 9000: for requests using TCP or UDP protocol.
- Port 9002: for requests using PDP protocol.
- Port 9099: for general requests through TIBCO Accelerator.

When the request has been received, the TIBCO Accelerator client sets a port number for the transfer between the TIBCO Accelerator server and the responder, the port number is in the range 9100 - 9199.

Note: To perform transfers from a TIBCO Accelerator client to a TIBCO Accelerator server, you must ensure that firewall ports 9000, 9002 and 9100 - 9199 are opened. If requests are initiated from an external computer, these firewall ports must be opened for incoming traffic. If requests are initiated from an internal computer, these firewall ports must be opened for outgoing traffic. Port 9099 is typically used locally and therefore does not require any firewall charges.
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