Atlantis Land WEBSHARE 3G 244WN - Manual (Page 82)

82
7.4 Firewall and Access Control
Your router includes a full SPI (Stateful Packet Inspection) firewall for controlling
Internet access from your LAN, as well as helping to prevent attacks from hackers.
Besides, when using 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.
1. Firewall: Prevents access from outside your network. The router provides
three levels of security support:
o
NAT natural firewall: This masks LAN users’ IP addresses
which is 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.
o
Firewall Security and Policy (General Settings): Inbound
direction of Packet Filter rules to prevent unauthorized