User Guide

Introduction Page 11
SonicWALL Internet Security Appliance Features
Internet Security
• ICSA-Certified Firewall
After undergoing a rigorous suite of tests to expose security vulnerabilities, SonicWALL
Internet security appliances have received Firewall Certification from ICSA, the
internationally-accepted authority on network security. The SonicWALL uses stateful
packet inspection, the most effective method of packet filtering, to protect your LAN
from hackers and vandals on the Internet.
• Hacker Attack Prevention
The SonicWALL automatically detects and thwarts Denial of Service (DoS) attacks such
as Ping of Death, SYN Flood, LAND Attack, and IP Spoofing.
• Network Address Translation (NAT)
Network Address Translation (NAT) translates the IP addresses used on your private
LAN to a single, public IP address that is used on the Internet. NAT allows multiple
computers to access the Internet, even if only one IP address has been provided by
your ISP.
• Network Access Rules
The default Network Access Rules allow traffic from the LAN to the Internet and block
traffic from the Internet to the LAN. You can create additional Network Access Rules
that allow inbound traffic to network servers, such as Web and mail servers, or that
restrict outbound traffic to certain destinations on the Internet.
• AutoUpdate
The SonicWALL maintains the highest level of security by automatically notifying you
when new firmware is released. When new firmware is available, the SonicWALL Web
Management Interface displays a link to download and install the latest firmware. The
SonicWALL also sends an e-mail with firmware release notes.
• DMZ Port
SonicWALL PRO 100, SonicWALL PRO 200 and SonicWALL PRO 300 include a DMZ port
allowing users to access public servers, such as Web and FTP servers. While Internet
users have unlimited access to the DMZ, the servers located on the DMZ are still
protected against DoS attacks.
• SNMP Support
SNMP (Simple Network Management Protocol) is a network protocol used over
User Datagram Protocol (UDP) that allows network administrators to monitor the status
of the SonicWALL Internet Security appliances and receive notification of any critical
events as they occur on the network.
integrated_manual.book Page 11 Friday, October 12, 2001 2:56 PM