Linksys WET54GS5 manuale d’uso

A Division of Cisco Systems, Inc . ® Model No . Ether net Bridge Wir eless- G WET54GS5 User Guide WIRELESS GH z 2.4 802.11g with 5-Port Switch[...]

Wireless-G Ethernet Bridge with 5-P ort Switch Copyright and T rademarks Specifications are subject to change without notice . L inksys is a registered tradema rk or trademark of Cisco Systems, Inc . and/or its affiliates in the U.S . and certain other countries. Copyright © 2004 Cisco Systems, Inc. All rights reserved. Other brands and product na[...]

Wireless-G Ethernet Bridge with 5-P ort Switch Table of Contents Chapter 1: Introduction 1 Welcome 1 What’s in this Guide? 2 Chapter 2: Planning Your Wireless Network 4 Network Topology 4 Network Layout 5 Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Port Switch 6 The Back Panel 6 The Front Panel 7 The Side Panel 9 Chapter 4: C[...]

Wireless-G Ethernet Bridge with 5-P ort Switch Security Precautions 47 Security Threats Facing Wireless Networks 47 Appendix C: Upgrading Firmware 50 Appendix D: Windows Help 51 Appendix E: Glossary 52 Appendix F: Specifications 59 Appendix G: Warranty Information 61 Appendix H: Regulatory Information 62 FCC Statement 62 Industry Canada (Canada) 62[...]

Wireless-G Ethernet Bridge with 5-P ort Switch List of Figures Figure 2-1: Infrastructure Network 4 Figure 2-2: Ad-Hoc Network 5 Figure 2-3: Network Using Wireless Bridging 5 Figure 3-1: Back Panel 6 Figure 3-2: Front Panel 7 Figure 3-3: Side Panel 8 Figure 4-1: Connect to the Network 10 Figure 4-2: Connect the Power 11 Figure 5-1: Welcome 12 Figur[...]

Wireless-G Ethernet Bridge with 5-P ort Switch Figure 7-10: WPA RADIUS-TTLS 27 Figure 7-11: WPA Pre-Shared Key 28 Figure 7-12: Log Table 28 Figure 7-13: Password Tab 29 Figure 7-14: Wireless Tab 30 Figure 7-15: Spanning Tree Protocol Tab 31 Figure 7-16: QOS Tab 32 Figure 7-17: Switch Table Tab 33 Figure 7-18: VLAN Tab 34 Figure 7-19: RMON Statistic[...]

1 Chapter 1: Introductio n Welcome Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 1: Introduction We lc o me Thank you for choosing the Wireless-G Ethernet Bridge with 5- port Switch. The Wireless-G Ether net Bridge with 5-port Switch can make any wired Ether net-equipped device a part of your wireless 802.11b or 802.11g network. At home , [...]

2 Chapter 1: Introductio n What’s in this Guide? Wireless-G Ethernet Bridge with 5-P ort Switch What’ s in this Gu ide? This user guide covers the steps for setting up and using the Wireless-G Ethernet Bridge with 5-Port Switch. • Chapter 1: Introduction This chapter describes the Wireless-G Et hernet Bridge applications and this user guide. [...]

3 Chapter 1: Introductio n What’s in this Guide? Wireless-G Ethernet Bridge with 5-P ort Switch • Appendix E: Glossary This appendix gives a brief glossar y of terms frequently used in networking. • Appendix F: Specifications This appendix provides the technical specifications for the Bridge . • Appendix G: Warr anty Information This append[...]

4 Chapter 2: Planning Your Wireless Network Network Topology Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 2: Planning Y our Wireless Network Network T opology 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. Comp[...]

5 Chapter 2: Planning Your Wireless Network Network Layout Wireless-G Ethernet Bridge with 5-P ort Switch Network La yout The Wireless-G Ethernet Bridge is compatible with all 8 02.11b and 802.11g routers, such as model numbers BEFW11S4 and WRT54G, as well as access points, including model numbers WAP11 and W AP54G. The Bridge will also communicate[...]

6 Chapter 3: Getting to Know the Wireless-G Ethernet Bridge wi th 5-Port Switch The Back Panel Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 3: Getting to Know the Wireless-G Ethernet Bridge with 5-Por t Switch The Back P anel All network connections to the Bridge are made through the ports on its back panel, shown in Figure 3-1. The reset[...]

7 Chapter 3: Getting to Know the Wireless-G Ethernet Bridge wi th 5-Port Switch The Front Panel Wireless-G Ethernet Bridge with 5-P ort Switch The Front P anel The LEDs indicate network activity experienced by the Bridge . (See Figure 3-2.) Po w e r Green. The Power LED will light u p when the Bridge is powered on. While the Bridge is booting up an[...]

8 Chapter 3: Getting to Know the Wireless-G Ethernet Bridge wi th 5-Port Switch The Front Panel Wireless-G Ethernet Bridge with 5-P ort Switch Figure 3- 3: Side P anel NOTE: If you use a Power over Ethernet (PoE) device to supply data and power through the Ethernet network cable, then you do not need to use the Power port.[...]

9 Chapter 3: Getting to Know the Wireless-G Ethernet Bridge wi th 5-Port Switch The Side Panel Wireless-G Ethernet Bridge with 5-P ort Switch The Side P anel The Power port is on the side panel. (See Figure 3-3.) Po w e r The Power port is where you will connect the power adapter .[...]

10 Chapter 4: Connecting the Wireless-G Eth ernet Bridge for Setup Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 4: Connecting the Wireless-G Ethernet Bridge for Setup 1. Attach the Bridge’ s antenn a. 2. Plug the included Ethernet network cable into one of the five LAN ports on the back panel of the Bridge, shown in Figure 4-1. 3. Plug [...]

11 Chapter 4: Connecting the Wireless-G Eth ernet Bridge for Setup Wireless-G Ethernet Bridge with 5-P ort Switch 4. Plug the supplied power cable into the Power port on the side panel of the Bridge , shown in Figure 4-2. Then plug the other end into an electrical outlet. Proceed to “Chapter 5: Setting Up the Wireless-G Ethernet Bridge. ” Figur[...]

12 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 5: Setting Up the Wireless-G Ethernet Bridge Now that you’ve connected the Wireless-G Ethernet Bridge to your wired network, you are ready to set it up . The Setup Wizard will guide you through all the necessar y steps. 1. Insert the Set[...]

13 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch 4. The screen shown in Figure 5-3 displays a list of Wireless- G Ethernet Bridges on your network, along with the status information for each Bridge . (If you have only one Bridge on your netwo rk, it will be the only one displayed.) Select the Br[...]

14 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch 6. The screen shown in Figure 5-5 shows a choice of two wireless modes. Click the Infrastructure radio button if you want your wireless computers to network with computers on your wired network using a wireless access point. Click the Ad-Hoc radio[...]

15 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch 7. The Wireless Settings screen, shown in Figure 5-6, will now appear . Enter your wireless network’ s SSID . If you chose Ad-Hoc mode , select the channel at which the network broadcasts its wireless signal. If you have Wireless-G (802.11g) and[...]

16 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch 9. The Security Settings (Optional) screen, shown in Figure 5-8, appears next. From the drop-down menu, select one of the wireless security mode options supported by the Bridge: WP A PSK (Pre-Shared Key) and WEP . (WP A stands for Wi-Fi Protected [...]

17 Chapter 5: Setting Up the Wireless-G Ethernet Bridge Wireless-G Ethernet Bridge with 5-P ort Switch 10. Review your settings on the Confirmation screen, shown in Figure 5-10. Write d own the Bridge’ s IP Address if you want to configure advanced settings throu gh the Bridge’ s Web-based Utility . Click the Ye s button to save these settings.[...]

18 Chapter 6: Connecting the Wireless-G Eth ernet Bridge for Network Use Connection to a Network Device Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 6: Connecting the Wireless-G Ethernet Bridge for Network Use Connection to a Network Device 1. After configuration, unplug the power cable from t he electrical outlet, and unplug the Ethernet[...]

19 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Overview Wireless-G Ethernet Bridge with 5-P ort Switch Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utilit y Overview The Bridge is designed to function properly after you configure it using the Setup Wizard. However , if you would like to change these basic settings[...]

20 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch Setup The Setup scre en, shown in Figure 7-2, lets you configure the wired and wireless network settings for the Bridge . When finished making your changes on this tab , click the Apply button to save these changes, or click the[...]

21 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch Wireless • SSID - The SSID is the network name shared among a ll devices in a wireless network. The SSID must be identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 alphanumeric chara[...]

22 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch Wireless-B (802.11b) devices in your network. Select G-Only if you have only Wireless-G devices in your network. • Security - T o enable security , select Enable , then click Edit Security Settings . T o disable security , sel[...]

23 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch If your page doesn’t automatically refresh itself , then click the Refresh button of your web browser . Click the Apply button to save your changes and close the screen. RADIUS This option features WEP used in coordination wit[...]

24 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch • User ID and Password. A user identification and password are required for your security . Enter the ID in the User ID field, then the password in the Password field. When finished making your changes on this tab , click the [...]

25 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch TTLS TTLS is a mutual authentication method that uses digital certificates. Select TTLS from the EAP T ype drop- down menu. Enter the Login name of your wireless network in the User ID field and the password in the Password fiel[...]

26 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch WP A RADIUS WP A RADIUS. This option features WP A used in coordination with a RADIUS ser ver . (This should only be used when a RADIUS ser ver is connected to the Router .) The WP A algorithm used is TKIP . Enter the RADIUS ser[...]

27 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch TTLS TTLS is a mutual authentication method that uses digit al certificates. Select TTLS from the EAP T ype drop- down menu. Enter the Login name of your wireless network in the User ID field and the password in the Password fie[...]

28 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Setup Wireless-G Ethernet Bridge with 5-P ort Switch WP A Pre-Shar ed Key WP A g ives you TKIP for the encryption m ethod. Enter a WP A Shared Key of 8-32 characters. (See Figure 7-11.) Enter a key shared between the Bridge and the ser ver . Click the Apply button to save your cha[...]

29 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Password Wireless-G Ethernet Bridge with 5-P ort Switch Pa s s w o r d The Password screen, shown in Figure 7-13, lets you change the Bridge’ s User name and Password and restore the factory default setting s. • Username - It is strongly recommended that you cha nge the factor[...]

30 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch Wireless Use the Wireless screen, shown in Figure 7-14, to customize advanced wireless settings and clone a MAC address onto the Bridge. Advanced Wireless • T ransmission Rate - The default setting is Auto . The range is fr[...]

31 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch currently connected to the Bridge’ s LAN port. The Bridge will actively scan for a new MAC address to be cloned whenever you disconnect and re-connect multiple devices to the Bridge through its LAN port. Select Manual if yo[...]

32 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch Cost - The path cost to forward pack ets from this port, it's usually inversely proportional to the speed of the port. State - The STP state deter mined by the Spanning T ree protocol. They are Blocking , Listening, Lear[...]

33 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch • All Packets - This rate limit will be applied to all packets. • Flooded - This rate limit will be applie d to Flooded unicast and Multicast and Broadcast packets. • Multicast - This rate limit will be applied to M ult[...]

34 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch dynamic learned entries to force it to lear n again. It will only dump at most 64 entries per page . If there are already 64 entries, use Get Next Page to get more pages. • Life Remaining - This is the life remaining before[...]

35 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch The port1 to port6 checkbox is disabled so that the user can always use port1 as a back door to access the web config page when the port based VLAN is enabled. • 802.1q Port VLAN Setting - Default VID Is used when 802.1q is[...]

36 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch RMON Statistics This screen is used to view the RMON counters for each port. Port Selection - Select the port to display the packets statistics. EtherStatsDropEvents - The total number of events in w hich packets were dropped[...]

37 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Wireless-G Ethernet Bridge with 5-P ort Switch Octets (FCS Error) or a bad FCS w ith a non-integral number of octets (Alignment Error). Note that this defin ition of jabber is different than the definition in IEEE-802.3 sect ion 8.2.1.5 (10BASE5) and section 10.3.1.4 (10B[...]

38 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Port Mirroring Wireless-G Ethernet Bridge with 5-P ort Switch Po r t M i r r o r i n g This screen shows the status of each port and allows you to configure the port mirroring settings for the manage switch feature . The informa tion here is for the wired LAN ports. For wireless s[...]

39 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Access List Wireless-G Ethernet Bridge with 5-P ort Switch Access List This screen is used to configure the access list settings between wireless and switch ports. Access List T ype - An Access List is a list of source MAC addresses. If a packet is coming from a wireless to a LAN [...]

40 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless Status Wireless-G Ethernet Bridge with 5-P ort Switch Figure 7-22: Wir eless Sta tus T ab Wireless Status The Status screen displayed the Bridge’s current status and settings. All information is read-only . • Device Name - The name you have assigned to the Bridge is d[...]

41 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Wireless-G Ethernet Bridge with 5-P ort Switch Click the Refresh button to obtain the most up-to-date settings and statistics. Click the Help button for additional on-screen information. SNMP This screen is used to configure the SNMP T rap related setting s for the Bridge . SNMP T[...]

42 Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility Help Wireless-G Ethernet Bridge with 5-P ort Switch Help The Help screen offers links to all of the help infor mation for the Web-based Utility’ s screens and the Bridge’s online technical support resources (all information is read-only). Y ou can also upgrade the Bridg e’ s[...]

43 Appendix A: Troublesh ooting Common Problems and So lutions Wireless-G Ethernet Bridge with 5-P ort Switch Appendix A: Troubleshooting This appendix consists of two parts: “Common Problems and Solutions” and “F requently Asked Questions. ” This appendix provides solutions to problems that may occur d uring the installation and operation [...]

44 Appendix A: Troublesh ooting Frequently Asked Questions Wireless-G Ethernet Bridge with 5-P ort Switch 4. The Bridge- enabled PC won’ t communicate w ith a wir eless-enabl ed PC or printer . Perform the following steps: • Check that the wireless-enabled PC or printer is on t he same wireless network as the PC using the Bridge . • Make sure[...]

45 Appendix A: Troublesh ooting Frequently Asked Questions Wireless-G Ethernet Bridge with 5-P ort Switch Can I run an ap plication from a remote computer over the wireless network? This will depend on whether or not the application is des igned to be used over a network. Consult the application’ s user guid e to determine if it supports operatio[...]

46 Appendix A: Troublesh ooting Frequently Asked Questions Wireless-G Ethernet Bridge with 5-P ort Switch What is ISM b and? The FCC and their counterparts outside of the U.S . have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particula r , is being made availab[...]

47 Appendix B: Wireless Security Security Precautions Wireless-G Ethernet Bridge with 5-P ort Switch Appendix B: Wireless Securit y Linksys wants to make wir eless networking as safe and easy for you as possible . Th e current generation of Linksys products provide several network security features, but they require specific action on your part for[...]

48 Appendix B: Wireless Security Security Threats Facing Wireless Netwo rks Wireless-G Ethernet Bridge with 5-P ort Switch SSID. There are several things to k eep in mind about the SSID: 1. Disable Broadcast 2. Make it unique 3. Change it often Most wireless networking devices will give you the optio n of broadcasting the SSID . While this option m[...]

49 Appendix B: Wireless Security Security Threats Facing Wireless Netwo rks Wireless-G Ethernet Bridge with 5-P ort Switch WP A Pre-Shar ed Key . If you do not have a RADIUS server , enter a password in the Pre-Shared key field of 8- 64 characters, and enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the Router or[...]

50 Appendix C: Upgradin g Firmware Wireless-G Ethernet Bridge with 5-P ort Switch Appendix C: Upgrading Firmware Y ou can use the Bridge’ s Web-based Utility to upgrade the firm war e; however , firmware should be upgraded ONL Y if you experience problems with the Bridge . T o upgrade the Bridg e’ s firmware , follow these instructions: 1. Down[...]

51 Appendi x D: Wind ows Hel p Wireless-G Ethernet Bridge with 5-P ort Switch Appendix D: Windows Help Almost all Linksys wireless products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier . These features can be accessed through Windows Help and are desc[...]

52 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch Appendix E: Glossar y 802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz. 802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating fr[...]

53 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch Buffer - A shared or assigned memor y area that is us ed to support and coordinate different computing and networking activities so one isn't held up by the other . Byte - A unit of data that is usually eight bits long Cable Modem - A device that con nects a computer to the[...]

54 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch DTIM ( D elivery T raffic I ndication M essage) - A message included in data packets that can increase wireless efficiency . Dynamic IP Address - A temporar y IP address assigned by a DHCP server . EAP ( E xtensible A uthentication P rotocol) - A general authentication protocol [...]

55 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch IEEE (The I nstitute of E lectrical and E lectronics E ngineers) - An independent institute that de velops networking standards. Infrastructure - A wireless network that is bridged to a wired network via an access point. IP ( I nternet P rotocol) - A protocol used to send data o[...]

56 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch OFDM ( O rthogonal F requency D ivision M ultiplexing) - Frequency transmission that separates the data stream into a number of lower -speed data streams, which are then transmitted in parallel to prevent information from being lost in transit. P acket - A unit of data sent over[...]

57 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch Software - Instructions for the computer . A series of instr uctions that performs a particular task is called a "program". SOHO ( S mall O ffice/ H ome O ffice) - Market segment of professionals who work at home or in small offices. SPI ( S tateful P acket I nspection[...]

58 Appendix E: Glossary Wireless-G Ethernet Bridge with 5-P ort Switch UDP ( U ser D atagram P rotocol) - A network protocol for transmitting data that does not require ackno wledgement from the recipient of the data that is sent. Upgrade - T o replace existing software or firmware with a newer version. Upload - T o transmit a file over a network. [...]

59 Appendix F: Specifications Wireless-G Ethernet Bridge with 5-P ort Switch Appendix F: Specifications Model WET54GS5 Standards IEEE 802.3, 802.3u, 802.11g, 802.11b , 802.1Q, 802.1d, 802.1p Ports 5 10/100 Ports with Auto MDI/MDIX support, Power Buttons Reset Button Cabling T ype Category 5 or better LEDs Power , Diag, Wireless- G Link, Wireless-G [...]

60 Appendix F: Specifications Wireless-G Ethernet Bridge with 5-P ort Switch Operating T emp . 32°F to 104°F (0°C to 40°C) Storage T emp . -4°F to 158°F (-20°C to 70°C) Operating Humidity 10% to 85%, Non-Condensing Storage Humidity 5% to 90%, Non-Condensing W arranty 1 Y ear Limited Warranty[...]

61 Appendix G: Warranty Information Wireless-G Ethernet Bridge with 5-P ort Switch Appendix G: Warrant y Information LIMITED WARRANTY Linksys warrants to Y ou that, for a pe riod of three years (the “Warranty Period”), your Linksys Product will be substantially free of defects in materials and workmanship under normal use . Y our exclusive reme[...]

62 Appendix H: Regulatory Inf ormation FCC Statement Wireless-G Ethernet Bridge with 5-P ort Switch Appendix H: Regulator y Information FCC Statement This product has been tested and complies with the specification s for a Class B digital device , pursuant to Part 15 of the FCC Rules. These limits are designed to pr ovide reasonable protection agai[...]

63 Appendix I: Contact Informa tion Wireless-G Ethernet Bridge with 5-P ort Switch Appendix I: Contact Information Need to contact Linksys? Visit us online for information on the latest products and updates to your existing products at: http://www .linksys.com or ftp.linksys.com Can't find information about a product you want to buy on the web[...]