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Chapter 1: introduction – Linksys Etherfast BEFSX41 User Manual

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EtherFast

®

Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint

1

Chapter 1: Introduction

The Linksys EtherFast

®

Cable/DSL Router

The Linksys Instant Broadband EtherFast Cable/DSL Firewall Router with 4-
Port Switch/VPN Endpoint is the perfect solution for connecting a small group
of PCs to a high-speed broadband Internet connection or a 10/100 Ethernet
backbone. The Router can be configured to limit internal users’ Internet access
based on URLs and/or time periods—URL filtering and time filtering. For
enhanced protection against intruders from the Internet, the Router features an
advanced Stateful Packet Inspection firewall.

Use the Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint to cre-
ate up to two IPSec VPN tunnels, so you can securely connect to the corporate
server from your home office—or any location when you’re on the road. The
Router provides a dedicated port for DMZ hosting and acts as the only exter-
nally recognized Internet gateway on your local area network (LAN). With the
performance and security features of the Cable/DSL Firewall Router with 4-
Port Switch/VPN Endpoint, your network will take advantage of the Internet
while keeping its data secure.

Supports Universal Plug-and-Play

Protects PCs from Ping of Death, SYN Flood, Land Attacks, IP Spoofing,
and Other DoS (Denial of Service) Attacks

Supports Up to Two IPSec Virtual Private Network (VPN) Tunnels

Supports URL Filtering and Time Filtering

Blocks Proxy, Java, ActiveX, and Cookies

Easily Configurable through a Web Browser from Any Networked PC

Supports IPSec and PPTP Pass-Through

Administer and Upgrade Your Router Remotely over the Internet

Supports Traffic and Event Logging

Configurable as a DHCP Server on Your Network

Administers Can Block Specific Internal Users’ Internet Access with
Filtering

Supports SNMP ver. 2.0 and SNMP MIB I and II

Supports NTP (Network Time Protocol) for Synchronization with Real-
Time Server

Support for PPPoE Connection

Dedicated Port for DMZ

The Linksys EtherFast Cable/DSL Firewall Router with

4-Port Switch/VPN Endpoint

Features

Instant Broadband

®

Series

Appendix F: Installing the TCP/IP Protocol

120

Appendix G: Finding the MAC Address and IP
Address for Your Ethernet Adapter

122

Appendix H: Glossary

126

Appendix I: Specifications

139

Environmental

139

Appendix J: Warranty Information

140

Appendix K: Contact Information

141