Atlantis A02-RA210-W54, Руководство пользователя

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WIRELESS ROUTER ADSL
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3.8.2.5 Firewall
Your router includes a full DoS firewall for controlling Internet access from your LAN, as well as
helping to prevent attacks from hackers. In addition to this, when using NAT (Network Address
Translation. Please see the
WAN configuration section for more details on NAT) the router acts as a
“natural” Internet firewall, as all PCs on your LAN will use private IP addresses that cannot be directly
accessed from the Internet.
Firewall : Prevents access from outside your network. The router provides three levels of security
support:
NAT natural firewall : This masks LAN users’ IP addresses which are invisible to outside users on
the Internet, making it much more difficult for a hacker to target a machine on your network.
This natural firewall is on when NAT function is enabled.
Firewall Security and Policy (General Settings): Inbound direction of Packet Filter rules to prevent
unauthorized computers or applications accessing your local network from the Internet.
Intrusion Detection : Enable Intrusion Detection to detect, prevent and log malicious attacks.
Access Control: Prevents access from PCs on your local network:
Firewall Security and Policy (General Settings): Outbound direction of Packet Filter rules to
prevent unauthorized computers or applications accessing the Internet.
MAC Filter rules : To prevent unauthorized computers accessing the Internet.
URL Filter: To block PCs on your local network from unwanted websites.
You can find six items under the Firewall section: General Settings, Packet Filter, Intrusion Detection,
MAC Address Filter, URL Filter and Firewall Log.
You can choose not to enable Firewall, to add all filter rules by yourself, or enable the Firewall using
preset filter rules and modify the port filter rules as required.
3.8.2.5.1 Packet Filering
User can decide to enable this firewall function including Packet Filter, Block Hacker Attack, and
Block WAN request features for better security control or not. But be noted, it wastes network
processor computation power. The performance will be lower about 10% to 15%. More firewall
features will be added continually, please visit our web site to download latest firmware.
Packet filtering function enables you to configure your router to check specified internal/external user
(IP address) from Internet access, or you can disable specific service request (Port number) to /from
Internet. This configuration program allows you to set up different filter rules up to 10 for different
users based on their IP addresses or their network Port number. The relationship among all filters is
“or” operation, which means the device checks these different filter rules one by one, stating from the
first rule.
As long as one of the rules is satisfied, the specified action will be taken. remote server using the port
number.