Atlantis A02-RA340, User Manual, Page: 48 / 85

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Firewall Security : When you enable Firewall function, you can select one of the firewall
security policies.
All blocked/User-defined: By default, all of traffic between WAN and LAN are blocked. You
have to configure the type of traffic passed between WAN and LAN, please refer to Packet
Filter below.
High, Medium and Low security level: By default, your system uses High, Medium and
Low firewall security level between the WAN and LAN. For example, when you select High,
the Port Filters of Packet Filter screen will be set automatically according to High security
level settings.
Look the table below for details: