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M2M Cellular Gateway
SPI Scenario
Scenario Application Timing
Users in Network‐A initiate to access cloud server through Gateway which records
connected sessions. Sometimes, unknown users will simulate the Packet but use
different Src IP to masquerade.
Scenario Description
In order to prevent security leak when local users surf the internet.
Parameter Setup Example
Following tables list the parameter configuration as an example for the gateway in
above diagram with "SPI" enabling.
Configuration Path
SPI
Scenario Operation Procedure
In above diagram, the Gateway is the gateway of Network‐A and the subnet of its
Intranet is 10.0.75.0/24. The gateway has the IP address of 10.0.75.2 for LAN interface
and 118.18.81.200 for WAN interface. It serves as a NAT router.
Activate the SPI feature at the Gateway.
Users in Network‐A initiate to access cloud server through Gateway. Sometimes,
unknown users will simulate the Packet but use different Src IP to masquerade.
System will block such packets from unknown users.
Index skipping is used to reserve slots for new function insertion, when required.
[Options]‐[Firewall Options]
■ Enable
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