Alfa Network N2 - Firewall Features; Stateful Packet Inspection (SPI); Network Address Translation (NAT)

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FIREWALL

Firewall functions which will help to protect your network and computer. You can

utilized firmware functions to protect your network from hackers and malicious

intruders.

◆ Remote Management (via WAN) — allow or deny to manage the router from

anywhere on the Internet.

◆ Remote Management Port — The port that you will use to address the

management from the Internet. For example, if you specify port 2020, then to

access the N2 from Internet, you would use a URL of the form:

http://xxx.xxx.xxx.xxx:2020/

◆ Ping from WAN Filter — When Allow, the N2 does not respond to ping packets

received on the WAN port.

◆ SPI Firewall — SIP firewall help to keep track of the state of network connections

(such as TCP streams, UDP communication) traveling across it. It is programmed to

distinguish legitimate packets for different types of connections. Only packets

matching a known active connection will be allowed by the firewall; others will be

rejected.

◆ Network Address Translation — NAT is the process of modifying IP address

information in IP packet headers while in transit across a traffic routing device.