Zte Telstra MF985T User Manual page 21

SETTINGS > FIREWALL > DMZ
 Enable the DMZ Setting to open up all ports from the WAN side (mobile
network) to the LAN side for this particular allocated IP address.
 It is advisable to set a Static IP address for this device outside of the DHCP range
eg 192.168.0.20
 Press the Help icon
SETTINGS > FIREWALL > SYSTEM SECURITY
 Enable or Disable Remote Management (via WAN) and PING
 Firewall settings are for advanced users and network administrators.
to get in context tips.
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