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Chapter 1: Introduction

Welcome

Wireless-G Router for 3G/UMTS Broadband

Chapter 1: Introduction

Welcome

Thank you for choosing the Linksys Wireless-G Router for 3G/UMTS Broadband. The Wireless-G Router for

3G/UMTS Broadband will allow you to network wirelessly better than ever, sharing Internet access, files and fun,

easily and securely.

How does the Wireless-G Router for 3G/UMTS Broadband do all of this? A router is a device that allows access to

an Internet connection over a network. With the Wireless-G Router for 3G/UMTS Broadband, you can access the

Internet through either your HSDPA/3G/UMTS or GPRS service (requires a Vodafone Mobile Connect HSDPA/3G/

UMTS data card, available separately), or you can use a cable or DSL modem for broadband service. Plus, this

access can be shared over the four switched ports or via the wireless broadcast at up to 54Mbps for Wireless-G

or up to 11Mbps for Wireless-B.

Use the WPA or WPA2 standard to secure your wireless network while the whole network is protected through a

Stateful Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology. Run the Setup Wizard

and it will guide you through the steps. You can also access the Router’s features through the easy-to-use,

browser-based utility.

But what does all of this mean?

Networks are useful tools for sharing 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 are not only useful in homes and offices, they can also be fun.

PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is

why the network is called “wired”.

PCs equipped with wireless cards or adapters can communicate without cumbersome cables. By sharing the

same wireless settings, within their transmission radius, they form a wireless network. This is sometimes called

a WLAN, or Wireless Local Area Network. The Wireless-G Router for 3G/UMTS Broadband bridges wireless

networks of both 802.11b and 802.11g standards and wired networks, allowing them to communicate with each

other.

With your networks all connected, wired, wireless, and the Internet, you can now share files and Internet

access—and even play games. All the while, the Wireless-G Router for 3G/UMTS Broadband protects your

networks from unauthorised and unwelcome users.

lan

(local area network): The computers and

networking products that make up the network in

your home or office.

nat

(network address translation): NAT technology

translates IP addresses of a local area network to a

different IP address for the Internet.

wpa

(wi-fi protected access): a wireless security

protocol using TKIP (Temporal Key Integrity Protocol)

encryption, which can be used in conjunction with a

RADIUS server.

spi

(stateful packet inspection)

firewall

: a technology

that inspects incoming packets of information before

allowing them to enter the network.

firewall

: Security measures that protect the

resources of a local network from intruders.

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Chapter 1: Introduction

What’s in this User Guide?

Wireless-G Router for 3G/UMTS Broadband

Linksys recommends using the Setup CD-ROM for first-time installation of the Router. 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

Wireless-G Router for 3G/UMTS Broadband, set it up, and configure it to bridge your different networks. These

instructions should be all you need to get the most out of the Wireless-G Router for 3G/UMTS Broadband.

What’s in this User Guide?

This user guide covers the steps for setting up and using the Wireless-G Router for 3G/UMTS Broadband.

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Chapter 1: Introduction

This chapter describes the Router’s applications and this User Guide.

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Chapter 2: Planning Your Wireless Network

This chapter describes the basics of wireless networking.

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Chapter 3: Getting to Know the Wireless-G Router for 3G/UMTS Broadband

This chapter describes the physical features of the Router.

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Chapter 4: Connecting the Wireless-G Router for 3G/UMTS Broadband

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

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Chapter 5: Setting up the Wireless-G Router for HSDPA/3G/UMTS or GPRS Service

This chapter walks you through the steps of the Setup Wizard to configure the Router for HSDPA/3G/UMTS or

GPRS service only.

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Chapter 6: Setting up the Wireless-G Router for Broadband WAN Service Only

This chapter walks you through the steps of the Setup Wizard to configure the Router for broadband WAN

service only.

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Chapter 7: Setting up the Wireless-G Router for Broadband WAN and HSDPA/3G/UMTS or GPRS Service

This chapter walks you through the steps of the Setup Wizard to configure the Router for broadband WAN and

HSDPA/3G/UMTS or GPRS service.

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Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband

This chapter explains how to use the web-based utility to configure the settings on the Wireless-G Router for

3G/UMTS Broadband.

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Appendix A: Troubleshooting

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

installation and use of the Wireless-G Router for 3G/UMTS Broadband.

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Chapter 1: Introduction

What’s in this User Guide?

Wireless-G Router for 3G/UMTS Broadband

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Appendix B: Wireless Security

This appendix explains the risks of wireless networking and some solutions to reduce the risks.

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Appendix C: Upgrading Firmware

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

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Appendix D: Windows Help

This appendix describes how you can use Windows Help for instructions about networking, such as installing

the TCP/IP protocol.

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Appendix E: 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 Router.

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Appendix F: Glossary

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

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Appendix G: Specifications

This appendix provides the technical specifications for the Router.

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Appendix H: Warranty Information

This appendix supplies the warranty information for the Router.

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Appendix I: Regulatory Information

This appendix supplies the regulatory information regarding the Router.

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Appendix J: Software License Agreement

This appendix supplies information regarding software licensing.

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Appendix K: Contact Information

This appendix provides contact information for a variety of Vodafone and Linksys resources, including

Technical Support.

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Chapter 2: Planning Your Wireless Network

Network Topology

Wireless-G Router for 3G/UMTS Broadband

Chapter 2: Planning Your Wireless Network

Network Topology

A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each

computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same

frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the

same wireless network.

Ad-Hoc versus Infrastructure Mode

Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure

and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an

access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other.

Choosing between these two modes depends on whether or not the wireless network needs to share data or

peripherals with a wired network or not.

If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral,

such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure

mode. The basis of Infrastructure mode centers around a wireless router or an access point, such as the

Wireless-G Router for 3G/UMTS Broadband, which serves as the main point of communications in a wireless

network. The Router transmits data to PCs equipped with wireless network adapters, which can roam within a

certain radial range of the Router. You can arrange the Router and multiple access points to work in succession to

extend the roaming range, and you can set up your wireless network to communicate with your Ethernet

hardware as well.

If the wireless network is relatively small and needs to share resources only with the other computers on the

wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless

transmitters and receivers to communicate directly with each other, eliminating the need for a wireless router or

access point. The drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to

communicate with computers on a wired network. And, of course, communication between the wireless-

equipped computers is limited by the distance and interference directly between them.

Network Layout

The Wireless-G Router for 3G/UMTS Broadband has been specifically designed for use with both your 802.11b

and 802.11g products. It is compatible with all 802.11g and 802.11b adapters, such as the notebook adapters for

infrastructure

: a wireless network that is bridged

to a wired network via an access point.

ssid

(service set identifier): your wireless network’s name.

ad-hoc

: a group of wireless devices

communicating directly to each other (peer-to-

peer) without the use of an access point.

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Chapter 2: Planning Your Wireless Network

Network Layout

Wireless-G Router for 3G/UMTS Broadband

your laptop computers, PCI adapters for your desktop PCs, and USB adapters when you want to enjoy USB

connectivity. The Router will also communicate with the Wireless PrintServer and Wireless Ethernet Bridges.

When you wish to connect your wireless network with your wired network, you can use the Wireless-G Router for

3G/UMTS Broadband’s four Ethernet LAN ports. To add more ports, any of the Router's LAN ports can be

connected to any of Linksys's switches.

With these, and many other Linksys products, your networking options are limitless. Go to the Linksys website at

www.linksys.com/international for more information about products that work with the Wireless-G Router for

3G/UMTS Broadband.

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