Firewall - Alfa Network N2 User Manual

F
IREWALL
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.
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