Linksys AG300 Manuale utente

Model No.

ADSL Gateway

AG300 (EU)

User Guide

WIRED

ADSL Gateway

Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco

rights reserved. Other brands and product names are trademarks or registered trademarks of their respective

holders.

How to Use this Guide

Your Guide to the ADSL Gateway has been designed to make understanding networking with the Gateway easier

than ever. Look for the following items when reading this User Guide:

In addition to these symbols, there are definitions for technical terms that are presented like this:

Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like

this:

Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.

This exclamation point means there is a Caution or

Warning and is something that could damage your

property or the Gateway.

word: definition.

This checkmark means there is a Note of interest and

is something you should pay special attention to while

using the Gateway.

This question mark provides you with a reminder about

something you might need to do while using the Gateway.

Figure 0-1: Sample Figure Description

AG300-EU-UG-60628NC BW

ADSL Gateway

TableofContents

Chapter 1: Introduction 1

Welcome 1

What’s in this User Guide? 2

Chapter 2: Planning Your Network 4

The Gateway’s Functions 4

IP Addresses 4

Chapter 3: Getting to Know the ADSL Gateway 6

Ports and Reset Button on Side Panel 6

LEDs on Side Panel 7

The Bottom Panel 8

Chapter 4: Connecting the ADSL Gateway 9

Overview 9

Connecting the Gateway to a Computer 9

Chapter 5: Configuring the ADSL Gateway 11

Overview 11

How to Access the Web-based Utility 13

The Setup Tab 13

The Security Tab 23

The Access Restriction Tab 27

The Applications & Gaming Tab 29

The Administration Tab 34

The Status Tab 40

Appendix A: Troubleshooting 43

Common Problems and Solutions 43

Frequently Asked Questions 51

Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter 55

Windows 98 or Me Instructions 55

Windows 2000 or XP Instructions 56

Appendix C: Upgrading Firmware 57

Appendix D: Glossary 58

Appendix E: Specifications 63

ADSL Gateway

Appendix F: Warranty Information 65

Appendix G: Regulatory Information 66

Appendix H: Contact Information 72

ADSL Gateway

ListofFigures

Figure 2-1: Network 4

Figure 3-1: Ports and Reset Button on Side Panel 6

Figure 3-2: LEDs on Side Panel 7

Figure 3-3: Bottom Panel with Stand in Closed Position 8

Figure 3-4: Gateway Using Stand 8

Figure 4-1: Connect the ADSL Line 9

Figure 4-2: Connect a PC 10

Figure 4-3: Connect the Power 10

Figure 5-1: Login Screen 13

Figure 5-2: Basic Setup 13

Figure 5-3: RFC 1483 Bridged - Dynamic IP 14

Figure 5-4: RFC 1483 Bridged - Static IP 14

Figure 5-5: RFC 1483 Routed 15

Figure 5-6: IPoA 15

Figure 5-7: RFC 2516 PPPoE 16

Figure 5-8: RFC 2364 PPPoA 16

Figure 5-9: Bridged Mode Only 17

Figure 5-10: Optional Settings 17

Figure 5-11: Advanced DHCP 18

Figure 5-12: DynDNS.org 19

Figure 5-13: TZO.com 19

Figure 5-14: Advanced Routing 20

Figure 5-15: Routing Table 21

Figure 5-16: PVC Routing 21

Figure 5-17: Firewall 23

Figure 5-18: Firewall Log 23

Figure 5-19: The VPN Panel 24

Figure 5-20: VPN Settings Summary 25

Figure 5-21: Advanced VPN Settings 26

Figure 5-22: VPN Log 26

Figure 5-23: Internet Access 27

Figure 5-24: Internet Policy Summary 27

ADSL Gateway

Figure 5-25: List of PCs 28

Figure 5-26: Add/Edit Service 28

Figure 5-27: Single Port Forwarding 29

Figure 5-28: Port Range Forwarding 30

Figure 5-29: Port Triggering 31

Figure 5-30: DMZ 31

Figure 5-31: QoS 32

Figure 5-32: Edit List of QoS Settings 32

Figure 5-33: Management 34

Figure 5-34: Allowed IP - IP Range 34

Figure 5-35: Reporting 37

Figure 5-36: System Log 37

Figure 5-37: Ping Test 38

Figure 5-38: Backup&Restore 38

Figure 5-39: Factory Defaults 39

Figure 5-40: Firmware Upgrade 39

Figure 5-41: Reboot 39

Figure 5-42: Gateway 40

Figure 5-43: Local Network 41

Figure 5-44: DHCP Active IP Table 41

Figure 5-45: ARP/RARP Table 41

Figure 5-46: DSL Connection 42

Figure B-1: IP Configuration Screen 55

Figure B-2: MAC Address/Adapter Address 55

Figure B-3: MAC Address/Physical Address 56

Figure C-1: Firmware Upgrade 57

Chapter 1: Introduction

Welcome

ADSL Gateway

Chapter1:Introduction

Welcome

Thank you for choosing the AG300 ADSL Gateway. This Gateway will provide your computers with a high-speed

Internet connection as well as access to local resources, including files and printers.

How does the Gateway do all of this? By connecting the Internet, as well as your computers and peripherals, to

the Gateway, you create a LAN, or Local Area Network. The Gateway lets devices on the network communicate

with each other, and it can direct and control communications for your network.

To protect your data and privacy, the Gateway features an advanced firewall to keep out Internet intruders.

Sensitive communications can be protected by powerful data encryption. In addition, you can safeguard your

family with parental control features such as Internet access restrictions and keyword blocking. You can

configure the Gateway’s settings through the easy-to-use, browser-based utility.

But what does all of this mean?

Networks are useful tools for sharing Internet access and computer resources. You can access one printer from

different computers and access data located on another computer’s hard drive. Networks are even used for

playing multiplayer video games. So, networks not only are useful in homes and offices, but also can be fun.

With your PCs and peripherals all connected to each other and to the Internet, you can now share files and

Internet access—and even play games. All the while, the ADSL Gateway protects your network from

unauthorized and unwelcome users.

Linksys recommends using the Setup CD-ROM for first-time installation of the Gateway. If you do not wish to run

the Setup Wizard on the Setup CD-ROM, then use the instructions in this Guide to help you connect the Gateway,

set it up, and configure it to bridge your network and the Internet. These instructions should be all you need to get

the most out of the ADSL Gateway.

lan (local area network): The computers and

networking products that make up the network in

your home or office.

network: a series of computers or devices

connected for the purpose of data sharing,

storage, and/or transmission between users

Chapter 1: Introduction

What’s in this User Guide?

ADSL Gateway

What’s in this User Guide?

This user guide covers the steps for setting up and using the ADSL Gateway.

• Chapter 1: Introduction

This chapter describes applications of the ADSL Gateway and this User Guide.

• Chapter 2: Planning Your Network

This chapter describes the basics of networking.

• Chapter 3: Getting to Know the ADSL Gateway

This chapter describes the physical features of the Gateway.

• Chapter 4: Connecting the ADSL Gateway

This chapter instructs you on how to connect the Gateway to your network.

• Chapter 5: Configuring the ADSL Gateway

This chapter explains how to use the Web-based Utility to configure the settings on the Gateway.

• Appendix A: Troubleshooting

This appendix describes some problems and solutions, as well as frequently asked questions, regarding

installation and use of the ADSL Gateway.

• Appendix B: Finding the MAC Address and IP Address for your Ethernet Adapter.

This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use

the MAC filtering and/or MAC address cloning feature of the Gateway.

• Appendix C: Upgrading Firmware

This appendix instructs you on how to upgrade the firmware on the Gateway if you should need to do so.

• Appendix D: Glossary

This appendix gives a brief glossary of terms frequently used in networking.

• Appendix E: Specifications

This appendix provides the technical specifications for the Gateway.

• Appendix F: Warranty Information

This appendix supplies the warranty information for the Gateway.

• Appendix G: Regulatory Information

This appendix supplies the regulatory information regarding the Gateway.

Chapter 1: Introduction

What’s in this User Guide?

ADSL Gateway

• Appendix H: Contact Information

This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Chapter 2: Planning Your Network

The Gateway’s Functions

ADSL Gateway

Chapter2:PlanningYourNetwork

The Gateway’s Functions

A Gateway is a network device that connects two networks together.

In this instance, the Gateway connects your Local Area Network (LAN), or the group of computers in your home or

office, to the Internet. The Gateway processes and regulates the data that travels between these two networks.

The Gateway’s NAT feature protects your network of computers so users on the public, Internet side cannot “see”

your computers. This is how your network remains private. The Gateway protects your network by inspecting

every packet coming in through the Internet port before delivery to the appropriate computer on your network.

The Gateway inspects Internet port services like the web server, ftp server, or other Internet applications, and, if

allowed, it will forward the packet to the appropriate computer on the LAN side.

Remember that the Gateway’s ports connect to two sides. The LAN ports connect to the LAN, and the ADSL port

connects to the Internet. The LAN ports transmit data at 10/100Mbps.

IP Addresses

What’s an IP Address?

IP stands for Internet Protocol. Every device on an IP-based network, including computers, print servers, and

Gateways, requires an IP address to identify its “location,” or address, on the network. This applies to both the

Internet and LAN connections. There are two ways of assigning an IP address to your network devices. You can

assign static IP addresses or use the Gateway to assign IP addresses dynamically.

Static IP Addresses

A static IP address is a fixed IP address that you assign manually to a computer or other device on the network.

Since a static IP address remains valid until you disable it, static IP addressing ensures that the device assigned

it will always have that same IP address until you change it. Static IP addresses must be unique and are

commonly used with network devices such as server computers or print servers.

NOTE: Since the Gateway is a device that connects

two networks, it needs two IP addresses—one for

the LAN, and one for the Internet. In this User Guide,

you’ll see references to the “Internet IP address”

and the “LAN IP address.”

Since the Gateway uses NAT technology, the only IP

address that can be seen from the Internet for your

network is the Gateway’s Internet IP address.

However, even this Internet IP address can be

blocked, so that the Gateway and network seem

invisible to the Internet—see the Block WAN

Requests description under Security in “Chapter 5:

Configuring the ADSL Gateway.”

Figure 2-1: Network

ip (internet protocol): a protocol used to send data

over a network

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