Zte MF612 User Manual page 39

You can setup a De-militarized Zone(DMZ) to separate internal
network with the Internet. Select Firewall→DMZ, the DMZ setting is
shown in the following figure:
If you select Enable , set the DMZ IP address ,and then click Apply to
confirm your configuration.
5. System Security
You can configure system firewall to protect AP or router from being
attacking. Select Firewall→System Security, the system security
setting is shown in the following figure:
Allow or Deny the remote management function and Enable or
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