H OTS POT GATEWAYSystem Administration 239Blocking a Subscriber Interface {Subscriber Interfaces}The HSG allows System Administrators to block subscriber interfaces.1. From the Web Management Interface, click on System, then SubscriberInterfaces.The Subscriber Interfaces screen appears:2. Enable or disable the following items by clicking on the corresponding checkbox:z Block Subscriber Interface 1z Block Subscriber Interface 23. Click on the Submit button to save your changes, or click on the Reset button toreset all values to their previous state.Updating the HSG Firmware {Upgrade}Upgrading the HSG firmware is performed from the HSG’s Command Line Interface(CLI) only. Refer to the Firmware Upgrade Procedure (separate document availablefrom Nomadix Technical Support).