About Wireless LANs, Modes, Ad-hoc Mode

9 About Wireless LANs

This Chapter provides some background information about using Wireless LANs (WLANs).

9.1 Modes

Wireless LANs can work in either of two (2) modes:

•Ad-hoc

•Infrastructure

Ad-hoc Mode

Ad-hoc mode does not require an Access Point or a wired (Ethernet) LAN. Wireless Stations (e.g. notebook PCs with wireless cards) communicate directly with each other.

Infrastructure Mode

In Infrastructure Mode, one or more Access Points are used to connect Wireless Stations (e.g. Notebook PCs with wireless cards) to a wired (Ethernet) LAN. The Wireless Stations can then access all LAN resources.

Access Points can only function in "Infrastructure" mode, and can communicate only with Wireless Stations which are set to "Infrastructure" mode.

147

Page 153

Image 153

3Com WBR-6000 user manual About Wireless LANs, Modes, Ad-hoc Mode, Infrastructure Mode

Contents

NOne Wireless Broadband Router WBR-6000LevelOne Safety FCC WARNINGFCC Radiation Exposure Statement CE Marking Warning CE Declaration of conformityPage Table of Contents Access Control Internet Access Features 1.1 Wireless Broadband Router FeaturesThis Chapter provides an overview of the Wireless Broadband Routers features and capabilities Advanced Internet Functions LAN Features Wireless Features Security Features Configuration & Management Wireless Broadband Router incorporates protection against DoS attacks WBR-6000 Cat.5 Cable Power Adapter Quick Installation Guide CD Manual 1.2 Package Contents Wireless Broadband Router This Chapter covers the physical installation of theOn - Wireless security is enabled Off - Wireless security is disabled Rear Panel Reset Button Reset to Defaults Power portWPS Button 10/100BaseT LAN connections WAN port 10/100BaseT Figure 2 Rear Panel 2.2 Requirements 2.3 Installation 1. Choose an Installation SiteFigure 3 Installation Diagram 2. Connect LAN Cables 4. Power Up3. Connect ADSL Cable 5. Check the LEDs IP Address 192.168.0.1 LAN 2.4 Default Setting This Chapter provides Setup details of the Wireless Broadband Router 3 Setup3.1 Overview To Do this Features featuresAccess Control Use any of the following Administration 3.2 Configuration Program Using your Web BrowserPreparation If you cant connect 3.3 Setup Wizard Cable Modems Common Connection TypesDSL Modems Type Other Modems e.g. Broadband Wireless Big Pond Telstra, AustraliaSingTel RAS Main Menu 3.4 Home ScreenNavigation & Data Input Figure 4 Home ScreenPage Data - LAN Screen 3.5 LAN ScreenFigure 5 LAN Screen TCP/IP DHCP Using the Wireless Broadband Routers DHCP ServerWhat DHCP Does DHCP Server To Configure your PCs to use DHCP Using another DHCP Server Figure 6 Wireless Screen 3.6 Wireless Screen Identification Data - Wireless ScreenRegion Station Setting Wireless SecurityConfigure MAC Level Access Control Wireless QoS EWC SettingEnable Internet Figure 7 Wi-Fi Protected Screen Wi-Fi Protected SetupWi-Fi Protected Setup Data - WPS Screen 3.7 Wireless Security WEP Wireless SecurityFigure 8 WEP WEP Data Encryption Data - WEP ScreenKey Size Passphrase Authentication WPA-PSK Wireless SecurityData - WPA-PSK Screen Figure 9 WPA-PSK Data - WPA2-PSK Screen WPA2-PSK Wireless SecurityFigure 10 WPA2-PSK WPA2-PSK Data - WPAM-PSK Screen WPAM-PSK Wireless SecurityFigure 11 WPAM-PSK WPAM-PSK Figure 12 Password Screen 3.8 Password ScreenOld Password Enter the existing password in this field The User Name is always admin Figure 13 Password Dialog TCP/IP Settings - Overview 4 PC Configuration4.1 Overview 4.2 Windows Clients The DNS should be set to the address provided by your ISP Checking TCP/IP Settings - Windows Figure 22 Network Configuration Win1. Select Control Panel - Network and Dial-up Connection Using DHCP Using a fixed IP Address Use the following IP AddressFigure 23 TCP/IP Properties Win you of the IP Address they assigned to the Wireless Broadband Router Checking TCP/IP Settings - Windows XP Figure 24 Network Configuration Windows XP1. Select Control Panel - Network Connection Figure 25 TCP/IP Properties Windows XP Page 1. Select Start Menu - Settings - Control Panel - Internet Options Internet Access2. Select Set up or change your Internet Connection For Windows Accessing AOL 4.3 Macintosh Clients 4.5 Other Unix Systems 4.4 Linux ClientsFixed IP Address To act as a DHCP Client recommended Mode 4.6 Wireless Station ConfigurationESSID Note! The SSID is case sensitive Figure 26 Network Connections Windows XP 4.7 Wireless Configuration on Windows XP Figure 27 Wireless Networks Windows XP If Wireless Security is Disabled Figure 28 Insecure Wireless Network Windows XP To connect If using WEP Data Encryption Figure 29 WEP Windows XP To connect Figure 30 Advanced - Wireless Networks Figure 31 Wireless Network Properties - WEP Configure this screen as followsFor Data Encryption, select WEP Figure 32 Preferred Networks Click OK to establish a connection to the Wireless Broadband RouterClick OK to save and close this dialog Figure 33 Wireless Networks Windows XP If using WPA-PSK Data Encryption Figure 34 Advanced - Wireless Networks Figure 35 Wireless Network Properties- WPA-PSK Set Network Authentication to WPA-PSKFor Data Encryption, select TKIP Figure 36 Preferred Networks If the SSID is not listed 1. Click the Advanced button to see a screen like the example below Figure 37 Wireless Networks Windows XP 2. Click the Add button. You will see a screen like the example below Figure 38 Unlisted Wireless Network Figure 39 Add Wireless Network Figure 40 Preferred Networks in the Setup Wizard This Chapter details the status of the Wireless Broadband Router5 Status 5.1 Status Address Internet IPWAN MTU Network Mask Version FirmwareButtons System Data Data - PPPoE Screen 5.2 Connection Status - PPPoEFigure 42 PPPoE Status Screen Physical Status PPPoE LinkConnection Log Connect Connection Log Messages MessageDescription Error Invalid or unknown packet type 5.3 Connection Status - PPTP Data - PPTP ScreenFigure 43 PPTP Status Screen Status 5.4 Connection Status - L2TP Data - L2TP ScreenFigure 44 L2TP Status Screen Status 5.5 Connection Status - Telstra Big Pond Data - Big Pond ScreenFigure 45 Telstra Big Pond Status Screen Connection Log Data - RAS Screen 5.6 Connection Details - SingTel RASFigure 46 Connection Details - RAS RAS Plan Gateway DefaultDNS IP DHCP Client 5.7 Connection Details - Other e.g. Fixed Wireless Figure 47 Connection Details - Other e.g. Fixed WirelessData - Fixed/Dynamic IP address Screen Network 6.1 Overview 6 Advanced Features 6.2 Internet Communication ApplicationsFigure 48 Internet Screen Special Applications Screen Special ApplicationsCommunication Applications Select an Data - Special Applications Screen Figure 49 Special Applications ScreenCheckbox Name Incoming Ports Outgoing Ports Using a Special Application Multi-DMZ To use this feature Figure 50 Multi-DMZEnable this DMZ Select the PC to be the DMZ PC for traffic sent to this IP address Access Control Screen 6.3 Access ControlTo use this feature If required, you can also define your own Services Figure 51 Access Control Screen Data - Access Control ScreenUser Group Select Group Block all Internet access - All traffic via the Internet AccessBlock selected Services - You can select Services Figure 52 Access Control - Services Services Screen Available Services Data - Services ScreenAdd New Service Available 6.4 Dynamic DNS DDNS Services work as follows Figure 53 DDNS Screen Dynamic DNS Screen Service DDNS ServicePassword Data - Dynamic DNS Screen 6.5 URL Filter Figure 54 URL Filter Screen Data - URL Filter ScreenCurrent Filter Strings Filter Figure 55 User Groups Screen 6.6 User Groups PCs deleted from any other Group will be added to the Default group PCs not assigned to any group will be in the Default groupData - User Groups Screen Group Figure 56 Options Screen 6.7 Options Enable UPnP Backup DNSConfiguration access to be 6.8 Schedule Default ScheduleData - Schedule Screen Figure 57 Schedule Screen Figure 58 Virtual Servers 6.9 Virtual ServersWireless Using Web Server Virtual Servers Screen IP Address seen by Internet Users Figure 59 Virtual Servers Screen Data - Virtual Servers ScreenServers Properties Disable All DefaultsUpdate Defining your own Virtual Servers Connecting to the Virtual Servers Modify Edit aDelete a Server Figure 60 WAN Port Screen 6.10 WAN Port Data - WAN Port Screen Port SettingsMTU Size Hostname Automatically Specified IP Addressobtain from Serve Login Method Logindefault value None Direct connection Login User Behavior Automatic Connect/Disconnect settingAutomatic Connect/Disconnect Manual Connect/Disconnect Config File 7 Advanced AdministrationDiagnostics Remote Admin 7.2 PC Database PC Database ScreenFigure 61 PC Database Known PCs Data - PC Database ScreenGenerate Report Figure 62 Advanced PC Database Advanced PC Database Edit Data - Advanced PC Database ScreenPC Properties DCHP Client - Reserved IP Address - Select Entry Add as NewSelected PC Standard Figure 63 Config File Screen 7.3 Config File Backup Data - Config File ScreenConfig Restore Figure 64 Logs Screen 7.4 Logs Access Control Enable LogsData - Logs Screen Outgoing Send Logs E-Mail LogsEvery day, Every Monday ... - The log is Include Server requires Login to send mail If your SMTP Server requires you to login in order to send mailCheck the setting Server requires login to send mail Figure 65 Network Diagnostics Screen 7.5 Diagnostics Ping Data - Network Diagnostics ScreenPing this IP Ping Button Figure 66 QoS Screen 7.6 QoS Data - QoS Screen QoS SettingCategory Summary Data - Remote Administration Screen 7.7 Remote AdministrationFigure 67 Remote Administration Screen Remote Administration To connect from a remote PC via the Internet Open Routing and Remote Access 7.8 RoutingRouting Screen Using this Screen Static Routing TableFigure 68 Routing Screen Data - Routing Screen Enable RIPStatic Routing Static Local Router Configuring Other Routers on your LANDestination IP Gateway IP Address Static Routing - Example Other Routers on the Local LANFigure 69 Routing Example For Router Bs Default Route For Router As Default RouteFor the Broadband Routers Routing Table Entry 1 Segment Figure 70 Security Screen 7.9 Security Options Settings Enable DoSData - Security Screen DoS Firewall Pass through Allow VPNDrop fragmented 7.10 Upgrade Firmware To perform the Firmware UpgradeFigure 71 Upgrade Firmware Screen 8 Troubleshooting This Chapter covers the most likely problems and their solutions8.1 Overview 8.2 General Problems Problem 1 When I enter a URL or IP address I get a time out error 8.3 Internet Access 8.4 Wireless Access Problem 1 My PC cant locate the Wireless Access PointProblem 2 Wireless connection speed is very slow Wireless Broadband Router Wireless Channel 9.1 Modes 9 About Wireless LANsAd-hoc Mode Infrastructure Mode 9.2 BSS/ESS 9.3 Channels 9.4 WEP 9.5 WPA-PSK WPA PSKPre-shared 9.6 Wireless LAN Configuration 10.1 Multi-Function Wireless Broadband Router 10 Specifications 10.2 Wireless Interface