Sonicwall Tele3 Sp Internet Security Appliance Features - SonicWALL TELE3 SP Administrator's Manual

By default, the SonicWALL TELE3 SP allows outbound access from the LAN to the Internet and
blocks inbound access from the Internet to the LAN. Users on the Internet are restricted from
accessing resources on the LAN unless they are authorized remote users or Network Access
Rules were created to allow inbound access.

SonicWALL TELE3 SP 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.
• WAN Failover using a V.90 Modem Port
The WAN Failover feature provides an alternate means of accessing the Internet when your
"always on" broadband connection loses its connection. This unique feature allows the
SonicWALL TELE3 SP to failover to a dial-up Internet connection when the WAN Ethernet
connection loses its connectivity.
• 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.
Introduction Page 9