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Manual ZyXEL G-570S

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  • ZyXEL G-570S - page 1

    ZyXEL G-570S 802.1 1g Wireless Access Point User ’ s Guide V ersion 1.00 1 1/2005 ...

  • ZyXEL G-570S - page 2

    ZyXEL G-570S User’s Guide 2 Copyright Copyright Copyright © 2005 by ZyXEL Communications Corpo ration. The contents of this publication may not be reprod uced in any part or as a whole, transcribed, stored in a retrieval system, tran slated into any language, or transmitted in any form or by any means, el ectronic, mechanical , magnetic, optical ...

  • ZyXEL G-570S - page 3

    ZyXEL G-570S User’s Guide Interferen ce Stateme nts and C ertification s 3 Interference S t atement s and Certifications Federal Communications Commissi on (FCC) Interference St atement This device complies with Part 15 of FCC rul es. Operation is subject to the following two conditions: • This device may not cause harmful interference. • Thi ...

  • ZyXEL G-570S - page 4

    ZyXEL G-570S User’s Guide 4 Interference Statemen ts and Certifications Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. Certifications 1 Go to www .zyxel.com . 2 Select your product from t he drop-down list box on the Zy XEL home page to go to that product's page. 3 Select the certification you wish to view ...

  • ZyXEL G-570S - page 5

    ZyXEL G-570S User’s Guide Safety Warnings 5 Safety W arnings For your safety , be sure to read and fo llow all warning notices and instructions. • Do NOT open the device or un it. Opening or removi ng covers can expose you to dangerous high vo ltage points or othe r risks. ONL Y qualified serv ice personnel can service the device. Please contac ...

  • ZyXEL G-570S - page 6

    ZyXEL G-570S User’s Guide 6 ZyXEL Limited Warranty ZyXEL Limited W arranty ZyXEL warrants to the original en d user (purchaser) that this product is free from any defects in materials or workmansh ip for a period of up to tw o years from the date of purchase . During the warranty period, and upon proof of purchase, should the product have ind ica ...

  • ZyXEL G-570S - page 7

    ZyXEL G-570S User’s Guide Customer Support 7 Customer Support Please have the following information r eady when you contact customer support. • Product model and serial number . • W arranty Information. • Date that you received your de vice. • Brief description of the problem and the steps yo u took to solve i t. METHOD LOCATION SUPPORT E ...

  • ZyXEL G-570S - page 8

    ZyXEL G-570S User’s Guide 8 Customer Suppo rt POLAND info@pl.zyxel.com +48-22-5286603 www .pl.zyxel.com ZyXEL Communications ul.Emilli Plater 53 00-1 13 W arszawa Poland +48-22-5206701 RUSSIA http://zyxel.ru/support +7-095-542- 89-29 www .zyxel.ru ZyXEL Russia Ostrovityanova 37a S tr . Moscow , 1 17279 Russia sales@zyxel.ru +7-095-542-89-25 SP AI ...

  • ZyXEL G-570S - page 9

    ZyXEL G-570S User’s Guide Table of Contents 9 T able of Content s Copyright .................................................. ................................................................ 2 Interference S tatement s and Certifications ........................................................... 3 Safety W arnings ............................ . ...

  • ZyXEL G-570S - page 10

    ZyXEL G-570S User’s Guide 10 Table of Contents Chapter 3 Introducing the W eb Configurator ........................................................................ 35 3.1 Web Configurator Overview ...................... ............. ................ ............. ............. ..35 3.2 Accessing the G-570S Web Configurator .... ............. ... ...

  • ZyXEL G-570S - page 11

    ZyXEL G-570S User’s Guide Table of Contents 11 6.8 EAP Authentication Overvi ew ................ ................................................ ............77 6.9 Dynamic WEP Key Exchange ... ............. ................ ............. ................ ............... 78 6.10 Introduction to WP A and WP A2 ............ ................ ....... ...

  • ZyXEL G-570S - page 12

    ZyXEL G-570S User’s Guide 12 Table of Contents IP Subnetting ....................... ..................................................... ............................ 151 Index ............................................... ....................................................................... 159 ...

  • ZyXEL G-570S - page 13

    ZyXEL G-570S User’s Guide List of Figure s 13 List of Figures Figure 1 WDS Functionality Example ............. ....... ................ ............. ............. ................ ... 22 Figure 2 Internet Access Applic ation ..... ................. ............. ................ ............. ................ ... 24 Figure 3 Corporate Network Ap ...

  • ZyXEL G-570S - page 14

    ZyXEL G-570S User’s Guide 14 List of Figures Figure 39 Bridge Loop: T w o Bridges Connected to Hub .............. ................ ............. .......... 67 Figure 40 Bridge Loop: Bridge Connected to Wired LAN ......................... ............. ............. 67 Figure 41 Wireless Settings: Bridge ................ ................ ......... ...

  • ZyXEL G-570S - page 15

    ZyXEL G-570S User’s Guide List of Figure s 15 Figure 82 Windows 95/98/Me: TCP/IP Properti es: DNS Configuration ........................... ... 124 Figure 83 Windows XP: S tart Menu ................ ................ ............. ............. ................ .......... 125 Figure 84 Windows XP: Control Panel ............ ................ ...... ...

  • ZyXEL G-570S - page 16

    ZyXEL G-570S User’s Guide 16 List of Figures ...

  • ZyXEL G-570S - page 17

    ZyXEL G-570S User’s Guide List of Tables 17 List of T ables T able 1 Front Panel LED Description ............. ................ ................ ................. ............ ....... 27 T able 2 Factory Defaults ................ ................ ................ ............. ................ ............. .......... 3 3 T able 3 Global Ic on Ke ...

  • ZyXEL G-570S - page 18

    ZyXEL G-570S User’s Guide 18 List of Tables T able 39 Classes of IP A ddresses . ................ ................ ................ ................. ............ ....... 151 T able 40 Allowed IP Address Range By Class ............ ............. ................ ............. ............. 152 T able 41 “Natural” Masks ........ .............. ...

  • ZyXEL G-570S - page 19

    ZyXEL G-570S User’s Guide Preface 19 Preface Congratulations on your p urchase from the ZyXEL G-570S 802.1 1g W ireless Access Point. Note: Register your product online to receive e-mail notice s of firmware upgrades and information at www .zyxel.com for global products, or a t www .us.zyxel.com for North American products. An access point (AP) a ...

  • ZyXEL G-570S - page 20

    ZyXEL G-570S User’s Guide 20 Preface Graphics Icons Key G-570S Computer Notebook computer Server Modem Wireless Signal T ele phone Switch Router ...

  • ZyXEL G-570S - page 21

    ZyXEL G-570S User’s Guide Chapter 1 Getting to Know Your G-570S 21 C HAPTER 1 Getting to Know Y our G-570S This chapter introduces the main feat ures an d applications of the G-570S. 1.1 Introducing the G-570S Wireless Access Point The ZyXEL G-570S is a 4-in-1 Access Point w ith S uper G and T u rbo G wireless technology . Access Point (AP), repe ...

  • ZyXEL G-570S - page 22

    ZyXEL G-570S User’s Guide 22 Chapter 1 Getting to Know Your G-570S Figure 1 WDS Functionality Example OTIST (One-T ouch Intellig ent Security T echnology) OTIST allows your G-570S to assign its SS ID and security settings (WEP or WP A-PSK) to the ZyXEL wireless adapters that support OT IST and are within transmission range. The ZyXEL wireless ada ...

  • ZyXEL G-570S - page 23

    ZyXEL G-570S User’s Guide Chapter 1 Getting to Know Your G-570S 23 WP A2 WP A 2 (IEEE 802.11 i) is a wireless security st andard that defines stronger encryption, authentication and key management than WP A. SSL Passthrough The G-570S allows SSL connec tions to go through the G-570S. SSL (Secu re Sockets Layer) uses a public key to encrypt data t ...

  • ZyXEL G-570S - page 24

    ZyXEL G-570S User’s Guide 24 Chapter 1 Getting to Know Your G-570S Output Power Management Output Power Management is the ability to set the level of output power . There may be interference or difficulty with ch annel a ssignment when there is a high density of APs within a coverage area. In this case you can lower the output power of ea ch acce ...

  • ZyXEL G-570S - page 25

    ZyXEL G-570S User’s Guide Chapter 1 Getting to Know Your G-570S 25 The following figure depicts a typical application of the G-570S in an enterprise environment. The three computers with wireless adapters are allowed to access the network resource through the G-570S after account validatio n by th e network au thentication server . Figure 3 Corpo ...

  • ZyXEL G-570S - page 26

    ZyXEL G-570S User’s Guide 26 Chapter 1 Getting to Know Your G-570S 1.3.4 Bridge / Repeater The G-570S can act as a wireless network bridge and establish wireless links with other APs. The G-570Ss in the followin g example are using br idge mode with a star configuration. A, B, C and D are connected to independent wired ne tworks and have bridge c ...

  • ZyXEL G-570S - page 27

    ZyXEL G-570S User’s Guide Chapter 1 Getting to Know Your G-570S 27 1.3.5 Access Point and Repeater Set the G-570S to AP+Repeater mode to have it simultaneously provide access for wireless clients and use the repeater function. This allows you to extend the coverage of your wireless network without installing Ethernet cable to connect the G-57 0S. ...

  • ZyXEL G-570S - page 28

    ZyXEL G-570S User’s Guide 28 Chapter 1 Getting to Know Your G-570S ETHN Green Blinking The G-570S is sending/receiving data. On The G-570S has a successful 10Mbps Ethernet connection. Amber Blinking The G-570S is sending/receiving data. On The G-570S has a successful 100Mbps Ethernet connection. Off The G-570S does not have an Ethernet connection ...

  • ZyXEL G-570S - page 29

    ZyXEL G-570S User’s Guide Chapter 2 Management Comp uter Setup 29 C HAPTER 2 Management Computer Setup This chapter describes how to prepare your comp uter to access the G-570S web config urator . 2.1 Introduction Y ou can c onnect a computer to the G-570S for mana gement purpose s either using an Ethern et connection (recommended for a first tim ...

  • ZyXEL G-570S - page 30

    ZyXEL G-570S User’s Guide 30 Chapter 2 Management Comput er Setup 2.2.1.1 Windows 2000/NT/XP The following exa mple figures use the default W indows XP GUI theme. 1 Click start ( St a r t in W indows 2000/NT) > Settings > Contr ol Panel . 2 In the Control Panel , double-click Network Connections ( Network and Dial-up Connections in W indow ...

  • ZyXEL G-570S - page 31

    ZyXEL G-570S User’s Guide Chapter 2 Management Comp uter Setup 31 Figure 12 Local Area Connection Properties 5 Select Use the following IP Addr ess and fill in an IP address (between 192.16 8.1.3 and 192.168.1. 254). • T ype 255.255.255.0 as the Subnet mask . • Click Advan ced 1 . Figure 13 Internet Protocol Properties 6 Remove any previously ...

  • ZyXEL G-570S - page 32

    ZyXEL G-570S User’s Guide 32 Chapter 2 Management Comput er Setup Figure 14 Advanced TCP/IP Settings 7 Click OK to close the Internet Protocol (TCP/IP) Properties window . 8 Click Close ( OK in W ind ows 2000/NT) to close the Local Area Connection Properties window . 9 Close the Network Connections window ( Network and Dial-up Connections in W in ...

  • ZyXEL G-570S - page 33

    ZyXEL G-570S User’s Guide Chapter 2 Management Comp uter Setup 33 Note: The wireless stations and G-570S must use the same SSID, channel and wireless security s ettings for wireless com munication. If you do not enable an y wireless security on your G-570S, your network traf fic is visible to any wireless network ing device that is within range . ...

  • ZyXEL G-570S - page 34

    ZyXEL G-570S User’s Guide 34 Chapter 2 Management Comput er Setup ...

  • ZyXEL G-570S - page 35

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 35 C HAPTER 3 Introducing the W eb Configurator This chapter describes how to config ure the G-570S us ing the W izard . 3.1 W eb Configurator Overview The web configurator is an HTML-based manageme nt interface that allows easy G-570S setup and management via Interne t browser ...

  • ZyXEL G-570S - page 36

    ZyXEL G-570S User’s Guide 36 Chapter 3 Introducing the Web Configurator Figure 16 Web Configurator Ad dress 5 T ype "1234" (default) as the password and click Login . Figure 17 Login Screen 6 Select your language and click Apply . Figure 18 Language Scre en 7 The following screen displays. Select Go W izard Setup and click Apply to use ...

  • ZyXEL G-570S - page 37

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 37 Figure 19 Select Wizard or Adva nced Setup Scr een 3.3 Configuring the G-570S Using the Wizard The wizard cons ists of a series of screens to help you configure you r G-570S for wireless stations to access your wired LAN. Use the following buttons to navigate the W izard: No ...

  • ZyXEL G-570S - page 38

    ZyXEL G-570S User’s Guide 38 Chapter 3 Introducing the Web Configurator Figure 20 Wizard: Basic Settings 3.3.2 Wizard: Wireless Settings Use this wizard screen to set up the wireless L AN. See the chapter on the wireless screens for background informatio n. 1 The SSID is a unique name to identify the devi ce in a wireless network. Enter up to 32 ...

  • ZyXEL G-570S - page 39

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 39 Figure 21 Wizard: Wireless Settings 3.3.3 Wizard: Security Settings Use this screen to configure security for your wireless LAN. The screen varies depending on what you select in the Encryption Method field. Select Disable to have no wireless security configured, select WEP ...

  • ZyXEL G-570S - page 40

    ZyXEL G-570S User’s Guide 40 Chapter 3 Introducing the Web Configurator Figure 22 Setup Wizard 3: Disable 3.3.3.2 WEP 1 WEP (W ired Equivalent Privacy) encrypts data frames before tr ansmitting over the wireless network. Select 64-bit , 128-bit or 152-bit from the WEP Encryption drop- down list bo x and then follow th e on-scre en instructions to ...

  • ZyXEL G-570S - page 41

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 41 Figure 23 Wizard 3: WEP 3.3.3.3 WP A(2)-PSK Only select WP A-PSK or WP A2-P SK if your wireless clients support it. T ype a pre-shared key from 8 to 63 ASCII characters (including spaces and symbols). This field is case-sensitive. Use Passphrase to automatically generate key ...

  • ZyXEL G-570S - page 42

    ZyXEL G-570S User’s Guide 42 Chapter 3 Introducing the Web Configurator Figure 24 Wizard 3: WP A(2)-PSK 3.3.4 Wizard: Confirm Y our Setting s This read-only screen shows the status of the current settings. Use the summary table to check whether what you have confi gured is correct. Click Finish to complete the wizard configuration and save yo ur ...

  • ZyXEL G-570S - page 43

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 43 Figure 25 Wizard: Confirm Y our Settings For more detailed background information, see the rest of this User's Guide. 3.4 Navigating the Advanced Screens The ST A TUS screen is the first advanced screen that displays. This section explains how to navigate the advanced c ...

  • ZyXEL G-570S - page 44

    ZyXEL G-570S User’s Guide 44 Chapter 3 Introducing the Web Configurator Figure 26 S tatus Screen The following table describes the global web conf igurator icons (in the upper left corner of most screens). 3.4.1 Navigation Panel After you enter the password, use the links on the navigation panel to go to the various advanced screens. Table 3 Glob ...

  • ZyXEL G-570S - page 45

    ZyXEL G-570S User’s Guide Chapter 3 Introducing the Web Configur ator 45 The following table describes the sub-menus. Note: See the rest of this User's Guide for conf iguration details and background information on all G-570S features using the web configurator . Table 4 Screens Summary LINK TA B FUNCTION S tatus This screen shows the Presti ...

  • ZyXEL G-570S - page 46

    ZyXEL G-570S User’s Guide 46 Chapter 3 Introducing the Web Configurator ...

  • ZyXEL G-570S - page 47

    ZyXEL G-570S User’s Guide Chapter 4 Status Screens 47 C HAPTER 4 S t atus Screens This chapter describes the Status screens. 4.1 System S t atus Click St a t u s to open the following screen. The S tatus screen display a snapshot of your device’ s settings. Y ou can also view network statistics and a list of wireless stations currently associat ...

  • ZyXEL G-570S - page 48

    ZyXEL G-570S User’s Guide 48 Chapter 4 Status Screen s 4.1.1 St atistics Click V iew S tatistics in the ST A TUS screen. This screen displays read-only information including port status and packet specific statis tics. Also provided are "system up time" and "poll interval(s)". The Poll Interval(s) field is configurable. MAC Ad ...

  • ZyXEL G-570S - page 49

    ZyXEL G-570S User’s Guide Chapter 4 Status Screens 49 Figure 28 S tatus: V iew S tatistics The following table describes the labels in this screen. Table 6 S tatus: V iew S tatistics LABEL DESCRIPTION Ethernet Packets This row displays the numbers of packe ts received and transmitted by the Ethernet port. Bytes This row displays the numbers of by ...

  • ZyXEL G-570S - page 50

    ZyXEL G-570S User’s Guide 50 Chapter 4 Status Screen s 4.1.2 Association List Click ST A TUS and then the V iew Association List button to display the Association List screen. When the device is not in wireless c lient mode, this scree n displays which wireless stations are currently associ ated to the device in the Association List screen. Figur ...

  • ZyXEL G-570S - page 51

    ZyXEL G-570S User’s Guide Chapter 4 Status Screens 51 The following table describes the labels in this screen. Table 8 S tatus: V iew Association List: Wireless Client Mode LABEL DESCRIPTION SSID This field displays the SSID (Service Set ID entifier) of each wireless device that the device detected. BSSID This field displays the BSSID (Basic Serv ...

  • ZyXEL G-570S - page 52

    ZyXEL G-570S User’s Guide 52 Chapter 4 Status Screen s ...

  • ZyXEL G-570S - page 53

    ZyXEL G-570S User’s Guide Chapter 5 Syst em Screen 53 C HAPTER 5 System Screen This chapter provides information on the System screen. 5.1 TCP/IP Parameters 5.1.1 IP Address Assignment Every computer on the Internet must have a unique IP address. If your networks are is olated from the Internet, for instance, only between your two branch of fices ...

  • ZyXEL G-570S - page 54

    ZyXEL G-570S User’s Guide 54 Chapter 5 System Screen If the ISP did not expl icitly give you an IP network n u mber , then most likely you have a sin gle user account and the ISP will assign you a d ynamic IP address when the connection is established. The Internet Assigned Number Au thority (IANA) reserved this block of addresses specifically fo ...

  • ZyXEL G-570S - page 55

    ZyXEL G-570S User’s Guide Chapter 5 Syst em Screen 55 Use fixed IP address Select this option to have your device use a static IP address. When you select this option, fill in the fields below . IP Address Enter the IP address of your device in dotted decima l notation. Subnet Mask En ter the subnet mask. Gateway IP Address T ype the IP address o ...

  • ZyXEL G-570S - page 56

    ZyXEL G-570S User’s Guide 56 Chapter 5 System Screen ...

  • ZyXEL G-570S - page 57

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 57 C HAPTER 6 W ireless Screens This chapter discusses how to configure wirele ss settings and wireless security on your G- 570S. 6.1 Wireless LAN Overview This section introduces the wireless LAN (WLAN) and some basic scenarios. 6.1.1 IBSS An Independent Basic Servic e Se t (IBSS), also called ...

  • ZyXEL G-570S - page 58

    ZyXEL G-570S User’s Guide 58 Chapter 6 Wireless Scree n s Figure 33 Basic Service set 6.1.3 ESS An Extended Service Set (ESS) consists of a series of overlappi ng BSSs, each containing an access point, with each access point connected together by a wired network. This wired connection between APs is called a Distributio n System (DS). An ESSID (E ...

  • ZyXEL G-570S - page 59

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 59 Figure 34 Extended Service Set 6.2 Wireless LAN Basics This section describes the wireless LAN network terms. 6.2.1 Channel A channel is the radio frequency(ies) used by IEEE 802.1 1b wireless devices. Channels available depend on your ge ographical area. Y ou may have a choice o f channels ...

  • ZyXEL G-570S - page 60

    ZyXEL G-570S User’s Guide 60 Chapter 6 Wireless Scree n s 6.2.3 RTS/CTS A hidden node occurs when two stations are with in range of the same access point, but are not within range of each other . The following figure illustrates a hidden node. Both stations (ST A) are within range of the access point (AP) or wi reless gateway , but out- of-range ...

  • ZyXEL G-570S - page 61

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 61 6.2.4 Fragment ation Threshold A Fragmentation Threshold is the maximum data fragment s ize (between 256 an d 2432 bytes) that can be sent in the wireless network before the G-570 S will fragment the packet into smaller data frames. A large Fragmentation Thr eshold is recommended for network ...

  • ZyXEL G-570S - page 62

    ZyXEL G-570S User’s Guide 62 Chapter 6 Wireless Scree n s Figure 36 Wireless Settings: Access Point The following table describes the labels in this screen. Table 11 Wireless Settings: Access Point LABEL DESCRIPTION Operation Mode Select the operating mode fro m t he drop-down list. The option s are Access Point , Wireless Client , Bridge and AP+ ...

  • ZyXEL G-570S - page 63

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 63 Wireless Mo de Select 802.1 1b only to allow only IEEE 802.1 1b compliant WLAN devices to associate with the device. Select 802.1 1g only to allow only IEEE 802.1 1g compliant WLAN devices to associate with the device. Select Auto (1 1g/1 1b) to allow e ither IEEE 802.1 1b or IEEE 802.1 1g c ...

  • ZyXEL G-570S - page 64

    ZyXEL G-570S User’s Guide 64 Chapter 6 Wireless Scree n s 6.3.2 Wireless Client Mode Select W ireless Client in the Operation Mode field to display the screen as shown next. This mode has the device act as wireless clie nt to connect to a wireless network. Note: WP A, WP A2 and IEEE 802.1x wireless security are not available when you use Wireless ...

  • ZyXEL G-570S - page 65

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 65 The following table describes the labels in this screen. Table 12 Wireless Settings: Wireless Client LABEL DESCRIPTION Operation Mode Select the operating mode fro m t he drop-down list. The option s are Access Point , Wireless Client , Bridge and AP+Repeater . SSID Wireless stations associa ...

  • ZyXEL G-570S - page 66

    ZyXEL G-570S User’s Guide 66 Chapter 6 Wireless Scree n s 6.3.3 Bridge Mode The device can act as a wireless ne twork bridge and establish wireless links with other APs. Y ou need to know the M AC address of the peer device, wh ich also must be in bridge mode. When two devices connect in Bridge mode, they form a WDS (W ireless Distribution System ...

  • ZyXEL G-570S - page 67

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 67 Be careful to avoid bridge loops when you enab le bridging in the G-57 0S. Bridge loops cau se broadcast traffic to circle the network endlessl y , resulting in possible throughput degradation and disruption of communication s. The following examples show two network topologies tha t can lea ...

  • ZyXEL G-570S - page 68

    ZyXEL G-570S User’s Guide 68 Chapter 6 Wireless Scree n s Select Bridge as the Operation M ode to have the device act as a wireless bridge only . Figure 41 Wireless Settings: Bridge The following table describes the labels in this screen. ...

  • ZyXEL G-570S - page 69

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 69 Table 13 Wireless Settings: Bridge LABEL DESCRIPTION Operation Mode Select the operating mode fro m t he drop-down list. The option s are Access Point , Wireless Client , Bridge and AP+Repeater . Note: If you are configuring the device from a computer connected to the wireless LAN and you ch ...

  • ZyXEL G-570S - page 70

    ZyXEL G-570S User’s Guide 70 Chapter 6 Wireless Scree n s 6.3.4 AP+Repeater Mode Select AP+Repeater as the Operation Mode to have the device act as an access point and a wireless bridge. Output Power Management Set the output power of the device in thi s field. If there is a high density of APs within an area, decrease the outp ut power of the de ...

  • ZyXEL G-570S - page 71

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 71 Figure 42 Wireless Settings: AP+Repeater ...

  • ZyXEL G-570S - page 72

    ZyXEL G-570S User’s Guide 72 Chapter 6 Wireless Scree n s The following table describes the labels in this screen. Table 14 Wireless Settings: AP + Repeater LABEL DESCRIPTION Operation Mode Select the operating mode fro m t he drop-down list. The option s are Access Point , Wireless Client , Bridge and AP+Repeater . SSID Wireless stations associa ...

  • ZyXEL G-570S - page 73

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 73 6.4 Wireless Security Overview W ireless security is vital to your network to p rotect wireless commu nication betw een wireless stations, access points and the wired network. Output Power Management Set the output power of the device in thi s field. If there is a high density of APs within ...

  • ZyXEL G-570S - page 74

    ZyXEL G-570S User’s Guide 74 Chapter 6 Wireless Scree n s The figure below shows the p ossible wireless security levels on your G-570 S. EAP (Extensible Authentication Protocol) is used for authentication and u tilizes dynamic WEP key exchange. It requires interac tion with a RADIUS (Remote Authentication Dial-In User Service) server either on th ...

  • ZyXEL G-570S - page 75

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 75 6.4.4 Hide G-570S Identity If you hide the ESSID, then the G-570S cannot be seen when a wireless client scans for local APs. The trade-off for the extra sec urity of “h iding” the G-570S may be inconvenience for some valid WLAN clients. 6.5 WEP Overview WEP (W ired Equivalent Privacy) as ...

  • ZyXEL G-570S - page 76

    ZyXEL G-570S User’s Guide 76 Chapter 6 Wireless Scree n s Open system authentication in volves an unencrypted two-message procedure. A wireless station sends an open system authentication request to the AP , which will then automatically accept and connect the wire less station to the network. In effect, open system is not authentication at all a ...

  • ZyXEL G-570S - page 77

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 77 • Access-Request Sent by an access point, requesting authentication. • Access-Reject Sent by a RADIUS server rejecting access. • Access-Accept Sent by a RADIUS server allowing access. • Access-Challenge Sent by a RADIUS server requesting more information in order to allow access. The ...

  • ZyXEL G-570S - page 78

    ZyXEL G-570S User’s Guide 78 Chapter 6 Wireless Scree n s Figure 44 EAP Authentication The details below provide a general descrip tion of how IEEE 802.1x EAP authentication works. For an example list of EAP-MD5 authen tication steps, see the IEEE 802.1x appendix. 1 The wireless station sends a “start” message to the G-570S. 2 The G-570S send ...

  • ZyXEL G-570S - page 79

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 79 Key differences between WP A(2) and WEP are improved data encryption and user authentication. If both an AP and the wireless clients suppor t WP A2 and you have an external RADIUS server , use WP A2 for stronger data encryption. If you don't have an external RADIUS server, you should us ...

  • ZyXEL G-570S - page 80

    ZyXEL G-570S User’s Guide 80 Chapter 6 Wireless Scree n s Figure 45 WP A(2)-PSK Authentication 6.12 WP A(2) with RADIUS Application Example Y ou need the IP address of the RADIUS server , its port number (de fau lt is 1812), and the RADIUS shared secret. A WP A(2) application example with an external RADIUS server looks as follows. “A” is the ...

  • ZyXEL G-570S - page 81

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 81 6.13 Security Parameters Summary Refer to this table to see what other secur ity parameters you should co nfigure for each authentication method/ key managemen t protoc ol type. Y ou enter manual keys by first selecting 64-bit WEP , 128-bit WEP or 152-bit WEP from the WEP Encryption field an ...

  • ZyXEL G-570S - page 82

    ZyXEL G-570S User’s Guide 82 Chapter 6 Wireless Scree n s 6.15.1 Wireless Security: Disable If you do not enable any wireless security on your device, your network is accessible to any wireless networki ng devi ce that is within range. Figure 47 Wireless Security: Disable The following table describes the labels in this screen. 6.15.2 Wireless Se ...

  • ZyXEL G-570S - page 83

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 83 Figure 48 Wireless Securit y: WEP The following table describes the labels in this screen. Table 18 Wireless Securit y: WEP LABEL DESCRIPTION Encryption Method Select WEP if you want to configure WEP encryption parameters. Authentication Ty p e Select Auto , Open or Shared from the drop-down ...

  • ZyXEL G-570S - page 84

    ZyXEL G-570S User’s Guide 84 Chapter 6 Wireless Scree n s 6.15.3 Wireless Security: WP A(2)-PSK Select WP A-PSK , WP A2-PSK or WP A-PSK & WP A2-PSK in the Encryption Method drop down list-box to display the screen displays as next. Figure 49 Wireless Security: WP A(2)-PSK The following table describes the labels in this screen. 6.15.4 Wireles ...

  • ZyXEL G-570S - page 85

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 85 Figure 50 Wireless Securit y: WP A(2 ) The following table describes the labels in this screen. Table 20 Wireless Securit y: WP A(2 ) LABEL DESCRIPTION Encryption Method Select WP A , WP A2 or WP A & WP A2 to configure user authentication and improved data encryption. Note: WP A, WP A2 a ...

  • ZyXEL G-570S - page 86

    ZyXEL G-570S User’s Guide 86 Chapter 6 Wireless Scree n s 6.15.5 Wireless Security: IEEE 802.1x The IEEE 802.1x standard outlines enhanced security methods for both the authentication of wireless stations and en cryption key managemen t. Note: Once you enable user auth entication, y ou need to specify an external RADIUS server on the device for a ...

  • ZyXEL G-570S - page 87

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 87 The following table describes the labels in this screen. 6.16 MAC Filter The MAC filter screen allows you to give exclusive access to up to 32 devices (Allow Association) or exclude up to 32 devices fro m accessing the device (Deny Association). Every Ethernet device has a unique MAC (Media ...

  • ZyXEL G-570S - page 88

    ZyXEL G-570S User’s Guide 88 Chapter 6 Wireless Scree n s The following applies if you set the device to c lient mode and want to connect to an AP that uses a MAC filter . After the device turns on in client mode, it clones the MAC address of the first packets that it receives fro m devices connected to the Ethe rnet port. It uses this MAC addres ...

  • ZyXEL G-570S - page 89

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 89 The following table describes the labels in this screen. 6.17 OTIST In a wireless network, the wireless clients mu st have the same SSID and security settings as the access point (AP) or wireless router (we wi ll refer to both as “AP” here) in order to associate with it. T raditionally t ...

  • ZyXEL G-570S - page 90

    ZyXEL G-570S User’s Guide 90 Chapter 6 Wireless Scree n s Hold in the OTIST button for one or two seconds. 6.17.1.1.2 W eb Configurator Click WIRELESS > SETTINGS > OTIST to configure and enable OTIST . The screen appears as shown. Note: At the time of writing the device do es not support OTIST in the wireless clien t mode. Figure 53 OTIST T ...

  • ZyXEL G-570S - page 91

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 91 Figure 54 Example Wireless Client OTIST Screen 6.17.2 S t arting OTIST Note: Y ou must click Star t in the AP OTIST web configurator screen and in the wireless client(s) Adapter screen all within three minutes (at the time of writing). Y ou can start OTIST in the wireless client s and AP in ...

  • ZyXEL G-570S - page 92

    ZyXEL G-570S User’s Guide 92 Chapter 6 Wireless Scree n s 2 This screen appears while OTIST settings ar e being transferred. It closes when the transfer is complete. Figure 57 OTIST in Progress (Client) • In the wireless client, you see this screen if i t can't find an OTIST -enabled AP (with the same Setup key ). Click OK to go back to th ...

  • ZyXEL G-570S - page 93

    ZyXEL G-570S User’s Guide Chapter 6 Wireless Screens 93 Figure 59 S tart OTIST? 2 If an OTIST -enabled wireless client los es its wireless connection for more than ten seconds, it will search for an OTIST -enabled AP for up to one minute. (If you manually have the wireless client search for an OT IST -enabled AP , there is no timeout; click Cance ...

  • ZyXEL G-570S - page 94

    ZyXEL G-570S User’s Guide 94 Chapter 6 Wireless Scree n s ...

  • ZyXEL G-570S - page 95

    ZyXEL G-570S User’s Guide Chapter 7 Ma nagement Screens 95 C HAPTER 7 Management Screens This chapter describes the Maintenance screens. 7.1 Maintenance Overview Use these maintenance screens to change the pa ssword, view logs, back up or restore the G- 570S configur ation and change th e web configurator langu a ge. 7.2 Password T o change your ...

  • ZyXEL G-570S - page 96

    ZyXEL G-570S User’s Guide 96 Chapter 7 Manag ement Scre ens 7.3 Logs Click SETTINGS > MANAGEMENT > Logs to open the Logs screen. Y ou can view logs and alert messages in this scr een. Once the log table is full, old logs are deleted as new logs are created. Click a column heading to sort th e entries. A triangle indicates the direction of t ...

  • ZyXEL G-570S - page 97

    ZyXEL G-570S User’s Guide Chapter 7 Ma nagement Screens 97 7.4 Configuration File The configuration file (often ca lled the romfile or rom-0) contai ns the factory default settings such as password and TCP/IP Setup, etc. It arrives from ZyXEL with a .rom filename extension. Once you have customized the device's settings, they can be saved ba ...

  • ZyXEL G-570S - page 98

    ZyXEL G-570S User’s Guide 98 Chapter 7 Manag ement Scre ens 7.4.1 Backup Configuration Backup configuration allo ws you to back up (save) the device's current configuration to a file on your computer . Once your device i s configured an d functioning properly , it is highly recommended tha t you back up your config uration file before making ...

  • ZyXEL G-570S - page 99

    ZyXEL G-570S User’s Guide Chapter 7 Ma nagement Screens 99 Figure 64 Network T emporarily Disconnected If you uploaded the default co nfiguration file you may ne ed to change the IP address of your computer to be in the same su bnet as that of the default device IP address (192.168.1.2). If the upload was not successful, the following screen will ...

  • ZyXEL G-570S - page 100

    ZyXEL G-570S User’s Guide 100 Chapter 7 Managemen t Screens Click SETTINGS > MANA GEMENT > F/W Upload to displa y the screen as shown. Follow the instructions in this screen to upload firmware to your device. Figure 67 Management: F/W Upload The following table describes the labels in this screen. Note: Do not turn of f the device while fir ...

  • ZyXEL G-570S - page 101

    ZyXEL G-570S User’s Guide Chapter 7 Management Screens 1 01 Figure 69 Network T emporarily Disconnected After two minutes, log in again an d check your new firmware version in the System S tatus screen. If the upload was not successful, the following status message displays at the bottom of the screen. Figure 70 Firmware Upload Error ...

  • ZyXEL G-570S - page 102

    ZyXEL G-570S User’s Guide 102 Chapter 7 Managemen t Screens ...

  • ZyXEL G-570S - page 103

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 103 C HAPTER 8 T roubleshooting This chapter covers potential pr oblems and possible remedies. After each problem descri ption, some instructions are provided to help you to diagnose and to solve the problem. 8.1 Problems S t arting Up the G-570S 8.2 Problems with the Password Table 28 Troubles ...

  • ZyXEL G-570S - page 104

    ZyXEL G-570S User’s Guide 104 Chapter 8 Trouble s hooting 8.3 Problems with the WLAN Interface 8.4 Problems with the Ethernet Interface Table 30 Troubleshootin g the WLAN Interface PROBLEM CORRECTIVE ACTION Cannot access the G-570S from the WLAN. Make sure the wireless adapter on the wireless station is worki ng properly . Check that both the G-5 ...

  • ZyXEL G-570S - page 105

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 105 8.4.1 Pop-up Windows, JavaS cript s and Java Permissions In order to use the web configurator you need to allow: • W eb browser pop-u p windows from your device. • JavaScripts (enabled by default). • Java permissions (enabled by default). Note: Internet Explorer 6 screens are used her ...

  • ZyXEL G-570S - page 106

    ZyXEL G-570S User’s Guide 106 Chapter 8 Trouble s hooting 8.4.1.1.1 Disable pop-up Blockers 1 In Internet Explorer , select To o l s , Pop-up Blocker and then select T urn Off Pop-up Blocker . Figure 71 Pop-up Blocker Y ou can also check if po p-up blocking is disable d in the Pop-up Blocker section in the Privacy tab. 1 In Internet Explorer , se ...

  • ZyXEL G-570S - page 107

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 107 8.4.1.1.2 Enable pop-up Blockers with Excep tions Alternatively , if you only want to allow pop-up window s from your device, see th e following steps. 1 In Internet Explorer , select To o l s , Internet Options and then the Privacy tab. 2 Select Settings… to open the Pop-up Blocker Setti ...

  • ZyXEL G-570S - page 108

    ZyXEL G-570S User’s Guide 108 Chapter 8 Trouble s hooting Figure 74 Pop-up Blocker Settings 5 Click Close to return to the Privacy screen. 6 Click Apply to save this setting. 8.4.1.2 JavaScript s If pages of the web configura tor do not display properly in Internet Explorer, check that JavaScripts are allowed. 1 In Internet Explorer , click T ool ...

  • ZyXEL G-570S - page 109

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 109 Figure 75 Internet Options 2 Click the Custom Level... button. 3 Scroll down to Scripting . 4 Under Active scripting make sure that Enable is selected (the default). 5 Under Scripting of Java applets make sure that Enable is sele cted (the default). 6 Click OK to clos e the window . ...

  • ZyXEL G-570S - page 110

    ZyXEL G-570S User’s Guide 110 Chapter 8 Trouble s hooting Figure 76 Security Setting s - Java S cripting 8.4.1.3 Java Permissions 1 From Internet Explorer , click To o l s , Internet Options and then the Security tab. 2 Click the Custom Level... button. 3 Scroll down to Microsoft VM . 4 Under Java permissions ma ke sure that a safety level is sel ...

  • ZyXEL G-570S - page 111

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 111 Figure 77 Security Setting s - Java 8.4.1.3.1 JA V A (Sun) 1 From Internet Explorer , click To o l s , Internet Options and then the Advanced tab. 2 make sure that Use Java 2 for <applet> u nder Java (Sun) is selected. 3 Click OK to clos e the window . ...

  • ZyXEL G-570S - page 112

    ZyXEL G-570S User’s Guide 112 Chapter 8 Trouble s hooting Figure 78 Java (S un) 8.5 T esting the Connection to the G-570S 1 Click St a r t , (All) Programs , Accessories and then Command Pr ompt . 2 In the Command Pr ompt window , type “ping” followed by a s pace and the IP address of the G-570S (19 2.168.1.2 is the de fault). 3 Press ENTER . ...

  • ZyXEL G-570S - page 113

    ZyXEL G-570S User’s Guide Chapter 8 Troubles hooting 113 ...

  • ZyXEL G-570S - page 114

    ZyXEL G-570S User’s Guide 114 Chapter 8 Trouble s hooting ...

  • ZyXEL G-570S - page 115

    ZyXEL G-570S User’s Guide Appendix A Product Specifications 115 A PPENDIX A Product S pecifications See also the introduction chapter for a general overview of the key features. S pecification T ables Table 32 Device Specifications Default IP Address 192.168.1.2 Default Subnet Mask 255.255.255.0 (24 bits) Default Password 1234 Dimensions 1 12 mm ...

  • ZyXEL G-570S - page 116

    ZyXEL G-570S User’s Guide 116 Appendix A Product Specifications Operating Modes Access Point Client Bridge Access Point and Repeater Wireless Links Up to four bridge links. T wo or more repeater links are supporte d. It is sugg ested that you only use up to three repeater links. Management Embedded W eb Configurator Command-line interface T elnet ...

  • ZyXEL G-570S - page 117

    ZyXEL G-570S User’s Guide Appendix A Product Specificat ions 117 Approvals Security Wired Equivalent Pr ivacy (WEP) data encryption Dynamic WEP key exchange WiFi Protected Access (WP A) IEEE 802.1x RF frequency range 2.412~2. 462GHz: North America 2.412MHz~2.484 GHz: Japan 2.412-2.472 GHz: Europe ETSI Data modulation type OFDM/ BPSK/QPSK/CCK/PBCC ...

  • ZyXEL G-570S - page 118

    ZyXEL G-570S User’s Guide 118 Appendix A Product Specifications Power Adaptor Specifications V OLTAGE DIP S/ INTERRUPTION EN61000-4-1 1 EM FIELD FROM DIGIT AL T ELEPHONES ENV50204 LAN COMPATIBILITY SmartBit FOR WIRELESS PC CARD FCC Part15C, Sec15.247 ETS300 328 ETS300 826 CE mark Table 35 Approvals (contin ued) Table 36 Power Adaptor Specificatio ...

  • ZyXEL G-570S - page 119

    ZyXEL G-570S User’s Guide Appendix A Product Specifications 119 Power Consumption 12 W atts Safety S tandards CE mark, EN60950 (2001) Table 36 Power Adaptor Specifications (con tinued) ...

  • ZyXEL G-570S - page 120

    ZyXEL G-570S User’s Guide 120 Appendix A Product Specifications ...

  • ZyXEL G-570S - page 121

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 121 A PPENDIX B Setting up Y our Computer ’ s IP Address All computers must have a 10M or 100M Et hernet adapter card and TCP/IP installed. W indows 95/98/Me/NT/2000/XP , Macintosh OS 7 and later operating systems and all versions of UNIX/LINUX include the software co ...

  • ZyXEL G-570S - page 122

    ZyXEL G-570S User’s Guide 122 Appendix B Setting up Your Computer’s IP Add ress Figure 80 WIndows 95/98/Me: Network: Co nfiguration Inst alling Component s The Network window Configuration tab displays a list of installed components. Y ou need a network adapter , the TCP/IP protocol and Client for Microso ft Networks. If you need the adapter: 1 ...

  • ZyXEL G-570S - page 123

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 123 3 Select Microsoft from the list of manufacturers. 4 Select Client for Microsoft Networks from the list of network clients and then click OK . 5 Restart your computer so the changes you made take ef fect. Configuring 1 In the Network window Configuration tab, select ...

  • ZyXEL G-570S - page 124

    ZyXEL G-570S User’s Guide 124 Appendix B Setting up Your Computer’s IP Add ress Figure 82 Windows 95/98/Me: TCP/IP Properties: DNS Configuration 4 Click the Gateway tab. • If you do not know your gateway’ s IP address, remove previously installed gateways. • If you have a gateway IP address, type it in the New gateway field and click Add ...

  • ZyXEL G-570S - page 125

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 125 Figure 83 Windows XP : S tart Menu 2 In the Control Panel , double-click Network Connections ( Network and Dial-up Connections in W indow s 2000/NT). Figure 84 Windows XP: Control Panel 3 Right-click Local Area Connection and then click Pr operties . ...

  • ZyXEL G-570S - page 126

    ZyXEL G-570S User’s Guide 126 Appendix B Setting up Your Computer’s IP Add ress Figure 85 Windows XP: Control Panel: Network Connections: Properties 4 Select Internet Protocol (TCP/IP) (under the Genera l tab in W in XP) and then click Properties . Figure 86 Windows XP: Loca l Area Connection Prop erties 5 The Internet Pr otocol TCP/IP Properti ...

  • ZyXEL G-570S - page 127

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 127 • If you have a static IP address click Use the following IP Address and fill in the IP addr ess , Subnet mask , and Default gateway fields. • Click Advanced . Figure 87 Windows XP: Internet Protocol (TCP/IP) Prope rties 6 If you do not know your gateway's ...

  • ZyXEL G-570S - page 128

    ZyXEL G-570S User’s Guide 128 Appendix B Setting up Your Computer’s IP Add ress Figure 88 Windows XP : Advanced TC P/IP Properti es 7 In the Internet Protocol TCP/IP Properties window (the General tab in Windows XP): • Click Obtain DNS server address automatically if you do not know your DNS server IP addre ss(es). • If you know your DNS se ...

  • ZyXEL G-570S - page 129

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 129 Figure 89 Windows XP: Internet Protocol (TCP/IP) Prope rties 8 Click OK to close the Internet Protocol (TCP/IP) Properties window . 9 Click Close ( OK in W ind ows 2000/NT) to close the Local Area Connection Properties window . 10 Close the Network Connections windo ...

  • ZyXEL G-570S - page 130

    ZyXEL G-570S User’s Guide 130 Appendix B Setting up Your Computer’s IP Add ress Figure 90 Macintosh OS 8/9: Apple Menu 2 Select Ethernet built-in from the Connect via list. Figure 91 Macintosh OS 8/9: TCP/IP 3 For dynamically assigned settings, select Using DHCP Server from the Configur e: list. ...

  • ZyXEL G-570S - page 131

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 131 4 For statically assigned settings, do the following: •F r o m t h e Configure box, select Manually . • T ype your IP address in the IP Address box. • T ype your subnet mask in the Subnet mask box. • T ype the IP address of your G-570S in the Router addr ess ...

  • ZyXEL G-570S - page 132

    ZyXEL G-570S User’s Guide 132 Appendix B Setting up Your Computer’s IP Add ress Figure 93 Macintosh OS X: Network 4 For statically assigned settings, do the following: •F r o m t h e Configure box, select Manually . • T ype your IP address in the IP Address box. • T ype your subnet mask in the Subnet mask box. • T ype the IP address of ...

  • ZyXEL G-570S - page 133

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 133 Note: Make sure you are logged in as the ro ot administrator . Using the K Desktop Environment (KDE) Follow the steps below to configure your computer IP address using the KDE. 1 Click the Red Hat button (located on the bottom left corner), select System Setting and ...

  • ZyXEL G-570S - page 134

    ZyXEL G-570S User’s Guide 134 Appendix B Setting up Your Computer’s IP Add ress • If you have a dynamic IP addres s, click Automatically obtain IP address settings with and select dhcp from the drop down list. • If you have a static IP address, click S tatically set IP Addresses and fill in the Address , Subnet mask , and Default Gateway Ad ...

  • ZyXEL G-570S - page 135

    ZyXEL G-570S User’s Guide Appendix B Setting up Your Computer’s IP Addr ess 135 1 Assuming that you have only one network card on th e computer , locate the ifconfig- eth0 configuration file (where eth0 is the name of the Ethernet card). Open the configuration file with any plain text editor . • If you have a dynamic IP address, enter dhcp in ...

  • ZyXEL G-570S - page 136

    ZyXEL G-570S User’s Guide 136 Appendix B Setting up Your Computer’s IP Add ress Figure 101 Red Hat 9.0: Restart Eth ernet Card V erifying Settings Enter ifconfig in a terminal screen to ch eck your TCP/IP properties. Figure 102 Red Hat 9.0: Checking TCP/IP Properties [root@localhost init.d]# network res tart Shutting down interface eth0: [OK] S ...

  • ZyXEL G-570S - page 137

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 137 A PPENDIX C Wireless LANs Wireless LAN T opologies This section discusses ad-hoc and in frastructure w ireless LAN topologies. Ad-hoc Wireless LAN Configuration The simplest WLAN configuration is an inde pe ndent (Ad-hoc) WLAN that connects a set of computers with wireless stations (A, B, C) ...

  • ZyXEL G-570S - page 138

    ZyXEL G-570S User’s Guide 138 Appendix C Wireless LANs Figure 104 Basic Service Set ESS An Extended Service Set (ESS) consists of a series of overlappi ng BSSs, each containing an access point, with each access point connected together by a wired network. This wired connection between APs is called a Distribution System (DS). This type of wireles ...

  • ZyXEL G-570S - page 139

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 139 Figure 105 Infrastructure WLAN Channel A channel is the radio frequency(ies) used by IEEE 802.1 1a/b/g wireless devices. Channels available depend on your ge ographical area. Y ou may have a choice of channels (for your region) so you should use a dif ferent channel th an an adjacent AP (acc ...

  • ZyXEL G-570S - page 140

    ZyXEL G-570S User’s Guide 140 Appendix C Wireless LANs Figure 106 RTS /C T S When station A sends data to the AP , it might no t know that the station B is already using the channel. If these two stations se nd data at the same time, collis ions may occur when both sets of data arrive at the AP at the same time, r esulting in a loss of me ssages ...

  • ZyXEL G-570S - page 141

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 141 A large Fragmentation Thr eshold is recommended for networks not prone to interference while you should set a smaller thresh old for busy networks or ne tworks that are prone to interference. If the Fragmentation Threshold value is smaller than the RT S/ CT S value (see previously) you set t ...

  • ZyXEL G-570S - page 142

    ZyXEL G-570S User’s Guide 142 Appendix C Wireless LANs • Authentication Determines the identity of the users. • Authorization Determines the network services available to authenticated users once they are connected to the network. • Accounting Keeps track of the client’ s network activity . RADIUS is a simple package exchange in whic h yo ...

  • ZyXEL G-570S - page 143

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 143 EAP Authentication EAP (Extensible Authentication Protocol) is an au thentication protocol that runs on top of the IEEE802.1x transport mech anism in order to support multiple types of user au thentication. By using EAP to interact with an EAP-compatib le RADIUS server , the acces s point he ...

  • ZyXEL G-570S - page 144

    ZyXEL G-570S User’s Guide 144 Appendix C Wireless LANs However , MD5 authentication has some weakness es. Since the authenticat ion server needs to get the plaintext passwords, the passwords mu st be stored. Thus someone other than the authentication server may access the password file. In addition, it is possib le to impersonate an authenticatio ...

  • ZyXEL G-570S - page 145

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 145 WEP Authentication S t ep s Three different methods can be used to auth enticate wireless stations to the network: Open System , Shar ed Key , and Auto . The following figure illust rates the steps involved. Figure 108 WEP Authentication S teps Open system authentication in volves an unencry ...

  • ZyXEL G-570S - page 146

    ZyXEL G-570S User’s Guide 146 Appendix C Wireless LANs Dynamic WEP Key Exchange The AP maps a unique ke y that is generated w ith the RADIUS server . This key expires when the wireless connection times out, disconnects or reauthentic ation times out. A new WEP key is generated each time r eauthentication is performed. If this feature is enabled, ...

  • ZyXEL G-570S - page 147

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 147 TKIP uses 128-bit keys that are dyna mically genera ted and distributed by the authe ntication server . It includes a per-packet key mixing function, a Message Inte grity Check (MIC) named Michael, an extended initialization vector (IV) with sequen cing rules, and a re-keying mechanism. TKIP ...

  • ZyXEL G-570S - page 148

    ZyXEL G-570S User’s Guide 148 Appendix C Wireless LANs If the roaming feature is not enabled on the access points, information is not communicated between the access points when a wireless st ation moves between coverage are as. The wireless station may not be able to communicate with other wireless stations on the network and vice versa. Figure ...

  • ZyXEL G-570S - page 149

    ZyXEL G-570S User’s Guide Appendix C Wir eless LANs 149 5 The access points must be connected to the Et hernet and be able to get IP addresses from a DHCP server if using dynamic IP address assignment. ...

  • ZyXEL G-570S - page 150

    ZyXEL G-570S User’s Guide 150 Appendix C Wireless LANs ...

  • ZyXEL G-570S - page 151

    ZyXEL G-570S User’s Guide Appendix D IP Subnetting 151 A PPENDIX D IP Subnetting IP Addressing Routers “route” based on the network number . The router that delivers the data packet to the correct destination host uses the host ID. IP Classes An IP address is made up of four octets (ei ght bits), wri tten in dotted decimal notation, for examp ...

  • ZyXEL G-570S - page 152

    ZyXEL G-570S User’s Guide 152 Appendix D IP Subne tting Since the first octet of a class “A” IP address must contain a “0”, the first octet of a class “A” address can have a valu e of 0 to 127. Similarly the first octet of a class “B” must begi n with “10”, therefore the first octet of a class “B” address has a valid range ...

  • ZyXEL G-570S - page 153

    ZyXEL G-570S User’s Guide Appendix D IP Subnetting 153 Since the mask is always a continuous number of ones begin ning from the left, fo llowed by a continuous number of zeros for the remainder of the 32 bit mask, you can si mply specify the number of ones instead of writing the value of each octet. This is usually specified by writing a “/” ...

  • ZyXEL G-570S - page 154

    ZyXEL G-570S User’s Guide 154 Appendix D IP Subne tting Note: In the following chart s, shaded/bolded last octet bit values indicate host ID bit s “borrowed” to form network ID bit s. The number of “borrowed” host ID bits determines the number of sub nets y ou can have. The remaining number of host ID bits (af ter “borrowing”) det erm ...

  • ZyXEL G-570S - page 155

    ZyXEL G-570S User’s Guide Appendix D IP Subnetting 155 Example: Four Subnet s The above exampl e illustrated using a 25-bit subne t mask to divide a class “C” address space into two subnets. Similarly to divide a class “C” address into four subnets, you need to “borrow” two host ID bits to give four possible combinations of 00 , 01, 1 ...

  • ZyXEL G-570S - page 156

    ZyXEL G-570S User’s Guide 156 Appendix D IP Subne tting Example Eight Subnet s Similarly use a 27-bit mask to create 8 subnets (001 , 010, 01 1, 100, 101, 1 10). The following table shows class C IP ad dress last octet values for each subnet. The following table is a summary for class “C” subnet planning. Table 49 Subnet 4 NETWORK NUMBER LAST ...

  • ZyXEL G-570S - page 157

    ZyXEL G-570S User’s Guide Appendix D IP Subnetting 157 Subnetting With Class A and Class B Networks. For class “A” and class “B” addresses the subnet ma sk also determines which bits are part of the network number and which are part of the host ID. A class “B” address has two host ID octets ava ilable for subnetting and a class “A? ...

  • ZyXEL G-570S - page 158

    ZyXEL G-570S User’s Guide 158 Appendix D IP Subne tting ...

  • ZyXEL G-570S - page 159

    ZyXEL G-570S User’s Guide Index 159 Index Numerics 11 0 V A C 5 230V AC 5 A Abnormal Working Conditions 6 AC 5 Accessories 5 Acts of God 6 Address Assignment 53 Ad-hoc 57 Advanced Encryption St andard 146 Airflow 5 Alternative Subnet Mask Notation 153 AP (access point) 139 Association List 50 Authentication 75 , 145 Authority 3 Auto MDI/MDI-X 11 ...

  • ZyXEL G-570S - page 160

    ZyXEL G-570S User’s Guide 160 Index E EAP 74 , 77 , 79 EAP Authentication 143 Electric Shock 5 Electrical Pipes 5 Encryption 79 , 146 Equal V alue 6 ESS 58 , 138 ESS IDentification 58 Ethernet Ports 11 5 Europe 5 European Plug S tandards 11 8 Exposure 5 Extended Service Se t 58 , 138 Extensible Authentication Protoco l 79 F Failure 6 FCC 3 Compli ...

  • ZyXEL G-570S - page 161

    ZyXEL G-570S User’s Guide Index 161 North American Plug S tandards 11 8 Norway , Contact Information 7 O Open System 76 Opening 5 Operating Condition 6 Operation Humidity 11 5 Operation T emperature 11 5 Out-dated Warranty 6 Outlet 3 P Pairwise Master Key (PMK) 147 Parts 6 Password 11 5 Patent 2 Permission 2 Photocopying 2 Pipes 5 Pool 5 Postage ...

  • ZyXEL G-570S - page 162

    ZyXEL G-570S User’s Guide 162 Index Service 5 , 6 Service Personnel 5 Service Set Identity 59 Shared Key 76 Shipping 6 Shock, Electric 5 signal strength 50 , 51 S pain, C onta ct Information 8 SSID 51 , 59 St a t i s t i c s 48 S torage Humidity 11 5 S torage T emperature 11 5 Subnet Mask 53 Subnet Mask, Default 11 5 Subnet Masks 152 Subnetting 1 ...

Manufacturer ZyXEL Category Access Point

Documents that we receive from a manufacturer of a ZyXEL G-570S can be divided into several groups. They are, among others:
- ZyXEL technical drawings
- G-570S manuals
- ZyXEL product data sheets
- information booklets
- or energy labels ZyXEL G-570S
All of them are important, but the most important information from the point of view of use of the device are in the user manual ZyXEL G-570S.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals ZyXEL G-570S, service manual, brief instructions and user manuals ZyXEL G-570S. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product ZyXEL G-570S.

Similar manuals

A complete manual for the device ZyXEL G-570S, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use ZyXEL G-570S by users. Manuals are usually written by a technical writer, but in a language understandable to all users of ZyXEL G-570S.

A complete ZyXEL manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual ZyXEL G-570S - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the ZyXEL G-570S, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the ZyXEL G-570S, that we can find in the current document
3. Tips how to use the basic functions of the device ZyXEL G-570S - which should help us in our first steps of using ZyXEL G-570S
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with ZyXEL G-570S
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of ZyXEL G-570S in a specific country, if it was not possible to solve the problem on our own.

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