AT&T Internet Air NCM1120D2-D323 - Net Service Filter

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To configure Net Service Filter
1. From the Dashboard , click Security > Firewall IPv4, or click the
Firewall icon on the dashboard.
2. Under the Net Service Filter tab select Yes next to Enable Net Service
Filter.
3. Select a mode from the Filter Table List drop-down.
Mode Description
White List
Clients on the list can access the specified
network services.
Black List
Clients on the list cannot access the specified
network services.
4. Click Add .
5. Fill in the necessary fields and click Add .
6. Click Save .