Linksys BEFSX41 Manuale Utente

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EtherFast
®
Cable/DSL Firewall Router with 4-Port Switch/VPN Endpoint
VPN
38
Password
51
Status
53
DHCP
55
Log 57
Help 59
Advanced 60
Filters
61
Forwarding
65
Dynamic Routing
70
Static Routing 
71
DMZ Host
73
MAC Address Clone
75
DDNS
76
Appendix A: Troubleshooting 
79
Common Problems and Solutions
79
Frequently Asked Questions
92
Appendix B: Maximizing VPN Security 
96
Appendix C: Configuring IPSec between a
Windows 2000 or XP PC and the Firewall Router  98
Introduction
98
Environment
98
Step One: Create an IPSec Policy
99
Step Two: Build Filter Lists
100
Step Three: Configure Individual Tunnel Rules
105
Step Four: Assign New IPSec Policy
113
Step Five: Create a Tunnel Through the Web-based Utility
114
Appendix D: SNMP Functions
116
Appendix E: How to Ping Your ISP’s E-mail &
Web Addresses 
117
Instant Broadband
®
Series
Table of Contents
Chapter 1: Introduction
1
The Linksys EtherFast Cable/DSL Firewall Router with 
4-Port Switch/VPN Endpoint
1
Features
1
An Introduction to LANs and WANs
2
IP Addresses
2
Network Setup Overview
4
Chapter 2: Your Virtual Private Network (VPN)
5
Why Do I Need a VPN?
5
What is a Virtual Private Network?
6
Chapter 3: Getting to Know the EtherFast
Cable/DSL Firewall Router
9
The Router’s Back Panel
9
The Router’s Front Panel LEDs
10
Chapter 4: Connect the Router
12
Overview
12
Connecting Your Hardware Together and Booting Up
12
Chapter 5: Configure the PCs
14
Overview
14
Configuring Windows 95, 98, and Millennium PCs
15
Configuring Windows 2000 PCs
17
Configuring Windows XP PCs
19
Chapter 6: Configure the Router
21
Chapter 7: The Cable/DSL Firewall Router’s 
Web-based Utility
27
Overview
27
Quick and Easy Router Administration
27
Setup 28
Firewall
35