D-Link DWR-933 User Manual page 44

Section 3 - Configuration
If you selected Firewall Enable:
Choose Drop to block all IP addresses defined in the IP
IP Filter Rules
Filter section or Allow to only allow those addresses
access to your network.
If you selected DMZ Settings:
DMZ IP Address Enter the IP address of the DMZ.
If you selected Access from WAN:
Access from WAN Allows the configuration interface to be access over
WAN. This setting is not recommended.
Click Apply to save changes.
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