Aspera Help

Firewall Configuration

Aspera transfers use one TCP port for session initialization and control, and one UDP port for data transfer. The TCP port is usually either 22 (default port for SSH) or 33001, and the UDP port is by default 33001. The IP address of our Aspera instance is currently However, that could change at any time. If you ever suspect the IP to have changed, simply ping and (at least with the current architecture) the IP you get back should be the one.

Official Aspera Firewall Guide