Security
77
N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700v2
Add Custom Services to Allow or Block
You can define your own incoming and outgoing custom services to allow or block. Once you
add your own custom services, they will be available on the Outbound Services screen (as
described in Firewall Rules on pag
e 74) and the Port Forwarding/Inbound Services screen
(as described in Port Forwarding and Triggering on page 100
).
To add a custom service:
1. Click Add Custom Service
to add a service. The Add Service screen displays:
The Add Service screen allows you to specify or edit your own custom service definition.
You can then use the custom service when creating firewall rules.
2. T
o add a service for blocking, first determine which port number or range of numbers is used
by t
he application.
3. Name. In the Name field, enter a suitable name for this service.
4. Type. Select
the correct type for this service (if in doubt, select TCP/UDP):
• TCP
• UDP
•
TCP/UDP
5. St
art Port and End Port.
Enter the starting and ending port numbers. If the application uses
a single port number, enter that number in both fields.
6. Click Appl
y to save your information and return to the previous screen.
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