Firewall Settings; Spi; Nat Endpoint Filtering - D-Link DIR-652 User Manual

Section 3 - Configuration
A firewall protects your network from the outside world. The D-Link DIR-652 offers a firewall type functionality. The SPI feature helps
prevent cyber attacks. Sometimes you may want a computer exposed to the outside world for certain types of applications. If you choose
to expose a computer, you cam enable DMZ. DMZ is short for Demilitarized Zone. This option will expose the chosen computer completely
to the outside world.
Enable SPI:
SPI (Stateful Packet Inspection, also known as
dynamic packet filtering) helps to prevent cyber
attacks by tracking more state per session. It
validates that the traffic passing through the
session conforms to the protocol.
NAT Endpoint
Select one of the following for TCP and UDP ports:
Filtering:
Endpoint Independent - Any incoming traffic
sent to an open port will be forwarded to the
application that opened the port. The port will
close if idle for 5 minutes.
Address Restricted - Incoming traffic must match
the IP address of the outgoing connection.
Address + Port Restriction - Incoming traffic must
match the IP address and port of the outgoing
connection.
D-Link DIR-652 User Manual

Firewall Settings

SPI

NAT Endpoint Filtering

DMZ
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