HP UPS Network Module User Manual page 59

Click Add Port to allow communication through ports 4679, 4680, 5000, and 5001.
9.
The Add a Port screen appears.
Enter a name for the HPPP Client port in the Name field.
10.
Enter 4679, 4680, 5000, or 5001 in the port number field.
11.
Select the appropriate radio button.
12.
Firewall configuration 59