Zte MF91 User Manual page 31

IP Address: Set IP address for the virtual server.
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Port: Set port numbers for the virtual server.
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Protocol: Set protocol for the virtual server.
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Click Delete Selected to delete the rule which you selected.
Click Reset to clear what you select or input.
DMZ Settings
Select Settings > Firewall > DMZ Settings to enable a specified host PC on the local network to access
Click Add to select the DMZ IP address which connects to the device.
System Security
You can configure system firewall to protect the device from being attacked. Select Settings > Firewall >
System Security, the system security setting is shown in the following figure:
the Internet without any firewall protection.
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