When using an Aspera FASP Proxy, you must ensure that your internal firewalls are allowing all the necessary TCP and UDP connections to pass through.
For an Aspera forward proxy, which allows users behind network firewalls to initiate requests for transfers of files on servers outside the firewall, you should check the settings of the firewall between the proxy and the internal network.
Ports to allow
- 9091, 9092
This firewall must allow traffic on TCP ports 9091 and 9092, which are the ports through which a client on the internal network establishes communication with the proxy server.
The firewall must also allow traffic through TCP and UDP ports 5000-5100 (or up to however many concurrent transfer sessions are expected--you may or may not need to allow beyond 5100), which are the ports the client uses for the SSH and FASP data streams for each transfer session. If the firewall does not allow traffic along these ports, your Aspera proxy will not be able to carry out your transfers.