Jetpack Settings
Help - Port Filtering
DMZ
Use the DMZ (Demilitarized Zone) to allow all traffic from outside the firewall for a connected device that has a specific local IP assigned as DMZ. It's recommended to disable DMZ for all times unless it's urgently needed.
Port Filtering
Use the Port Filtering feature as needed to block outgoing Internet traffic. If this setting is enabled, only traffic from the selected applications can access the Internet. Traffic is identified by port numbers. Some applications are pre-defined. You can define additional applications, but you need to know details of the traffic used and generated by the applications you wish to define.
Applications
- On / Off Checkbox
Use these check boxes to enable access to the Internet for each application while the Port Filtering feature is enabled. Traffic from selected applications can access the Internet. Otherwise, the traffic is blocked.
Custom Applications
This feature allows you to define your own applications - up to 10. Once defined, these applications can be enabled and disabled the same way as pre-defined applications. To define an application, you need to know the ports and protocol (TCP, UDP) used by the application for outgoing traffic. To start, click the Add Custom Application button, then provide the following data.
Note that any changes to a Custom Application are not saved until the "Save Changes" button is used to save the entire page contents.
- Allow: Use this check box to enable an application after you have defined it. If selected, traffic from this application can access the Internet. Otherwise, the traffic is blocked.
- App Name: Enter a suitable name for the application you are defining.
- Port Range (Start Port/End Port)
- Each application has its own port range. Enter the beginning and end of the port range for each application.
- For a single port, enter the port number in both the Start Port and End Port fields.
- For a port range, enter the beginning of the range in the Start Port field and the end of the range in the End Port field.
- Protocol
- Delete
For each port range, select the protocol (TCP or UDP) used by that port range.
Use this checkbox to delete a custom application.