EW50 Industrial LTE Cellular Gateway
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Enable SPI Scenario
As shown in the diagram, the Gateway has the IP
address of 118.18.81.200 for WAN interface and
192.168.1.253 for LAN interface. It serves as a NAT
gateway. Users in Network-A initiate access to
cloud server through the gateway. Sometimes,
unknown users will simulate the packets but use
different source IP to masquerade. With the SPI
feature been enabled at the gateway, it will block
such packets from unknown users.
Discard Ping from WAN & Remote Administrator Hosts Scenario
“Discard Ping from WAN” makes any host on the
WAN side unable to ping this gateway and receive
ICMP packet reply. Enable the Discard Ping from
WAN function to prevent security leaks when local
users use the internet.
If the remote administrator knows the gateway’s
global IP, he/she can access the Gateway GUI via
TCP port 8080.
Firewall Options Setting
Go to Security > Firewall > Options Tab.
The firewall options setting allows network administrator to modify the behavior of the firewall and to enable
Remote Router Access Control.
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General