LAPAC1750 AC1750 Dual Band Access Point User's Guide
TABLE OF CONTENTS CHAPTER 1 QUICK START GUIDE ................................................................................... 1 Package Contents .............................................................................................................. 1 Physical Details .................................................................................................................. 1 Mounting Guide......................................................................................................
APPENDIX C PC AND SERVER CONFIGURATION .................................................... 69 Overview .......................................................................................................................... 69 Using WEP ....................................................................................................................... 69 Using WPA2-PSK ............................................................................................................
Chapter 1 Quick Start Guide 1 Package Contents • Linksys Wireless Access Point • Quick Start Guide • Ethernet Cable • AC Power Adapter • CD with Documentation • Mounting Bracket • Mounting Kit • Ceiling Mount Back Plate • Drilling Layout Template Physical Details There is one LED for the device. LED LED Color Green Blue Activity Status Blinking System is booting. Solid System is normal; no wireless device connected. Blinking Software upgrade in process.
Reset Button - Press and hold this button for less than 15 seconds to power cycle device. Press and hold for longer than 15 seconds to reset the device to factory default settings.
Mounting Guide To avoid overheating, do not install your access point if ambient temperatures exceed 104°F (40°C). Install on a flat, stable surface, near the center of your wireless coverage area making sure not to block vents on the sides of the device enclosure. Wall Installation 1. Position drilling layout template at the desired location. 2. Drill four screw holes on the mounting surface. If your Ethernet cable is routed behind the wall, mark Ethernet cable hole as well. 3.
Chapter 2 Access Point Setup 2 Overview This chapter describes the setup procedure to connect the wireless access point to your LAN, and configure it as an access point for your wireless stations. Wireless stations may also require configuration. For details, see Appendix C - Wireless Station Configuration. The wireless access point can be configured using a Web browser. Setup using a Web Browser Your browser must support JavaScript.
5. 6. 7. Figure 1: Password Dialog From the status screen menu configure for your environment. Details of these screens and settings are described in the following sections of this chapter. You may also wish to change the admin password on the User Accounts screen, accessed from the Configuration menu. Wireless stations must now be set to match the wireless access point. See Chapter 4 for details.
Setup Wizard The first time you connect to the wireless access point, run the Setup Wizard to configure the device. 1. Click the Quick Start link on the main menu Figure 2: Setup Wizard 2. 3. 4. On the first screen, click Launch. Set the password on the Device Password screen, if desired. Configure the time zone, date and time for the device on System Settings screen. Figure 3: Setup Wizard - System Settings 5. On the IPv4 Address screen (Figure 6) configure the IP address of the device then click Next.
Figure 4: Setup Wizard - IPv4 6. 7. Set the SSID information on the Wireless Network screen. Click Next. Figure 5: Setup Wizard - Wireless Network On the Wireless Security Screen (Figure 8) configure the wireless security settings for the device. Click Next. If you are looking for security options that are not available in the wizard, go to Configuration Æ WirelessÆ Security page. The access point supports more sophisticated security options there.
8. On the Summary screen, check the data to make sure they are correct and then click Submit to save the changes. Figure 7: Setup Wizard - Summary 9. Click Finish to leave the wizard.
User Accounts Click User Accounts on the Administration menu to manage user accounts. The access point supports up to 5 users: one administrator and four normal users. Figure 9: User Accounts Data - User Accounts Screen User Account Table User Name Enter the User Name to connect to the access point’s admin interface. User Name is effective once you save settings. User Name can include up to 63 characters. Special characters are allowed.
Time Screen Click Time on the Administration menu to configure system time of the device. Figure 10: Time Screen Data - Time Screen Time Current Time Display current date and time of the system. Manually Set date and time manually. Automatically When enabled (default setting) the access point will get the current time from a public time server. Time Zone Choose the time zone for your location from the drop-down list.
Log Settings Screen The logs record various types of activity on the access point. This data is useful for troubleshooting, but enabling all logs will generate a large amount of data and adversely affect performance. Figure 11: Log Settings Screen Data - Logs Screen Log Types Log Types Select events to log. Checking all options increase the size of the log, so enable only events you believe are required. Email Alert Email Alert Enable email alert function.
Email Address for Logs Enter the email address the log messages are to be sent to. Log Queue Length Enter the length of the queue: up to 500 log messages. The default is 20 messages. When messages reach the set length the queue will be sent to the specified email address. Log Time Threshold Enter the time threshold (in seconds) used to check if the queue is full. It’s a value from 1 to 600 and default is 600 seconds. Valid characters include alphanumeric characters, "_", "-", "." and "@".
Management Access Screen You can use the Management page to configure the management methods of the access point. Figure 12: Management Access Screen Data - Management Access Screen Web Access HTTP HTTP (Hyper Text Transfer Protocol) is the standard for transferring files (text, graphic images and other multimedia files) on the World Wide Web. Enable to allow Web access by HTTP protocol. HTTP Port Specify the port for HTTP. It can be 80 (default) or from 1024 to 65535.
SNMP Settings SNMP Simple Network Management Protocol (SNMP) is a network monitoring and management protocol. Enable or disable SNMP function here. Disabled by default. Contact Enter contact information for the access point. The contact includes 1 to 32 characters. Special characters are allowed. Location Enter the area or location where the access point resides. The location includes 1 to 32 characters. Special characters are allowed.
SSL Certificate Screen This screen can be used to manage SSL certificate used by HTTPS. Figure 13: SSL Certificate Screen Data - SSL Certificate Screen Export/Restore to/from Local PC Export SSL Certificate Click to export the SSL certificate. Install Certificate Browse to choose the certificate file. Click Install Certificate button. Export to TFTP Server Destination File Enter the name of the destination file. TFTP Server Enter the IP address for the TFTP server. Only support IPv4 address here.
Network Setup Screen Use this screen to configure basic device settings, VLAN settings and settings for the LAN interface, including static or dynamic IPv4/IPv6 address assignment. Figure 14: Network Setup Screen Data - Network Setup Screen TCP/IP Host Name Assign a host name to this access point. Host name consists of 1 to 15 characters. Valid characters include A-Z, a-z, 0-9 and -. Character cannot be first and last character of hostname and hostname cannot be composed of all digits.
Management VLAN The VLAN associated with the IP address you use to connect to the access point. Provide a number between 1 and 4094 for the Management VLAN ID. The default is 1. IPv4/v6 IP Settings Select Automatic Configuration or Static IP Address. IP Address Enter an unused IP address from the address range used on your LAN. Subnet Mask Enter the subnet mask for the IP address above. Default Gateway Enter the gateway for the IP address above. Primary DNS Enter the DNS address.
Advanced Screen Use this screen to configure advanced network settings of the access point. Figure 15: Advanced Screen Data - Advanced Screen Port Settings Auto Negotiation If enabled, Port Speed and Duplex Mode will become grey and cannot be configured. If disabled, Port Speed and Duplex Mode can be configured. Operational Auto Negotiation Current Auto Negotiation mode of the Ethernet port. Port Speed Select the speed of the Ethernet port. Available only when Auto Negotiation is disabled.
Authentication This feature supports following two kinds of authentication: • Authentication via MAC Address Select this if you want to use MAC Address for authentication. The access point uses lowercase MAC address for Name and Password, like xxxxxxxxxxxx. • Authentication via Name and Password Select this if you want to use name and password for authentication. Name - Enter the login name. The name includes 1 to 63 characters. Special characters are allowed.
Wireless Screens There are ten configuration screens: • Basic Settings • Security • Rogue AP Detection • Scheduler • Scheduler Association • Connection Control • Rate Limit • QoS • Workgroup Bridge • Advanced Settings Basic Settings Basic Settings provides the essential configuration for your wireless radio and SSIDs. You should able to set up your wireless network with these essential parameters configured. For advanced wireless settings such as Band Steering, Channel Bandwidth etc.
Enable Radio Enable or disable the wireless radio. Wireless Mode Select the desired option for radio 1: • G only - allow connection by 802.11G wireless stations only. • N only - allow connection by 802.11N wireless stations only. • B/G-Mixed - allow connection by 802.11B and G wireless stations only. • B/G/N-Mixed (Default) - allow connections by 802.11N, 802.11B and 802.11G wireless stations. Select the desired option for radio 2: Wireless Channel • N/A-Mixed - allow connection by 802.
Security Settings Use this screen to configure security settings of SSIDs to provide data protection over the wireless network Figure 17: Security Settings Data - SSID Settings Screen Security Select SSID Select the desired SSID from the drop-down list. Security Mode Select the desired security method from the list. Security Settings • Disabled - No security. Anyone using the correct SSID can connect to your network. • WEP - The 802.11b standard.
• • Each user's wireless client must support 802.1x and provide the RADIUS authentication data when required. • All data transmission is encrypted using the WPA2 standard. Keys are automatically generated, so no key input is required. RADIUS - RADIUS mode utilizes RADIUS server for authentication and dynamic WEP key generation for data encryption.
Security Settings - WEP This is the 802.11b standard. Data is encrypted before transmission, but the encryption system is not very strong. Figure 18: WEP Wireless Security Screen Data - WEP Screen WEP Authentication Select Open System or Shared Key. All wireless stations must use the same method. Default Transmit Key Select a transmit key. WEP Encryption Select an encryption option, and ensure your wireless stations have the same setting: • 64-Bit Encryption - Keys are 10 Hex characters.
Security Settings - WPA2-Personal This is a further development of WPA-Personal, and offers even greater security. Figure 19: WPA2-Personal Wireless Security Screen Data - WPA2-Personal Screen WPA2-Personal WPA Algorithm The encryption method is AES. Wireless stations must also use AES. Pre-shared Key Enter the key value. It is 8 to 63 ASCII characters or 64 HEX characters. Other wireless stations must use the same key. Key Renewal Specify the value of Group Key Renewal.
Security Settings - WPA/WPA2-Personal This method, sometimes called Mixed Mode, allows clients to use either WPA-Personal or WPA2-Personal. Figure 20: WPA/WPA2-Personal Wireless Security Screen Data - WPA/WPA2-Personal Screen WPA/WPA2-Personal WPA Algorithm The encryption method is TKIP or AES. Pre-shared Key Enter the key value. It is 8 to 63 ASCII characters or 64 HEX characters. Other wireless stations must use the same key. Key Renewal Specify the value of Group Key Renewal.
Security Settings - WPA2-Enterprise This version of WPA2-Enterprise requires a RADIUS Server on your LAN to provide the client authentication. Data transmissions are encrypted using the WPA2 standard. Figure 21: WPA2-Enterprise Wireless Security Screen Data - WPA2-Enterprise Screen WPA2-Enterprise Primary Server Enter the IP address of the RADIUS Server on your network. Primary Server Port Enter the port number used for connections to the RADIUS Server.
Key Renewal Timeout Specify the value of Group Key Renewal. It is a value from 600 to 36000, and default is 3600. WPA automatically changes secret keys after a certain period of time. The group key interval is the period of time in between automatic changes of the group key, which all devices on the network share. Constantly keying the group key protects your network against intrusion, as the would-be intruder must cope with an everchanging secret key.
Security Settings - WPA/WPA2-Enterprise WPA/WPA2-Enterprise requires a RADIUS Server on your LAN to provide the client authentication. Data transmissions are encrypted using WPA2 standard. Figure 22: WPA/WPA2-Enterprise Wireless Security Screen Data - WPA/WPA2-Enterprise Screen WPA/WPA2-Enterprise Primary Server Enter the IP address of the RADIUS Server on your network. Primary Server Port Enter the port number used for connections to the RADIUS Server.
Key Renewal Timeout Specify the value of Group Key Renewal. It is a value from 600 to 36000, and default is 3600. WPA automatically changes secret keys after a certain period of time. The group key interval is the period of time between automatic changes of the group key, which all devices on the network share. Constantly keying the group key protects your network against intrusion, as the would-be intruder must cope with an everchanging secret key.
RADIUS Use RADIUS server for authentication and dynamic WEP key generation for data encryption. Figure 23: RADIUS Settings Data - RADIUS Screen Authentication Server Primary Server Enter the IP address of the RADIUS Server on your network. Primary Server Port Enter the port number used for connections to the RADIUS Server. It is a value from 1 to 65534, and default is 1812. Primary Shared Secret Enter the key value to match the RADIUS Server. It consists of 1 to 64 characters.
Rogue AP Detection Rogue AP detection is used to detect the unexpected or unauthorized access point installed in a secure network environment. Figure 24: Rogue AP Screen Data - Rogue AP Screen Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. Rogue AP Enable or disable Rogue AP Detection on the selected radio. Detected Rogue AP List Action Click Trust to move the AP to the Trusted AP List. MAC Address The MAC address of the Rogue AP.
New MAC Address Add one trusted AP by MAC address.
Scheduler Configure a rule with a specific time interval for SSIDs to be operational. Automate enabling or disabling SSIDs based on the profile definition. Support up to 16 profiles and each profile can include 4 time rules. Figure 25: Scheduler Screen Data - Scheduler Screen Wireless Scheduler Enable or disable wireless scheduler on the radio. It is disabled by default. If disabled, even if some SSIDs are associated with profiles, they will be always active.
Day of the Week Select the desired day from the list. Option None means this time rule is disabled. Start Time Choose the start time. Finish Time Choose the finish time.
Scheduler Association Associate defined scheduler profiles with SSIDs. Figure 26: Scheduler Association Screen Data - Scheduler Association Screen Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. Scheduler Association SSID The index of SSID. SSID Name The name of the SSID. Profile Name Choose the profile that is associated with the SSID. If the profile associated with the SSID is deleted, then the association will be removed.
Connection Control Exclude or allow only listed client stations to authenticate with the access point. Figure 27: Connection Control Screen Data - Connection Control Screen SSID Select the desired SSID from the list. Connection Type Select the option from the drop-down list as desired. • Local: Choose either Allow only following MAC addresses to connect to wireless network or Prevent following MAC addresses from connection to wireless network.
Rate Limit Limit downstream and upstream rate of SSIDs. Figure 28: Rate Limit Screen Data - Rate Limit Screen Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. Rate Limit SSID The index of SSID. SSID Name The name of the SSID. Upstream Rate Enter a maximum upstream for the SSID. The range is from 0 to 300 Mbps for Radio 1 and from 0 to 800 Mbps for Radio 2; 0 means no limitation. Downstream Rate Enter a maximum downstream for the SSID.
QoS The QoS (Quality of Service) feature allows you to specify priorities for different traffic coming from your wireless client. Lower priority traffic will be slowed down to allow greater throughput or less delay for high priority traffic. Figure 29: QoS Screen Data - QoS Screen QoS Setting Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. QoS Settings SSID The index of SSID. SSID Name The name of the SSID. VLAN ID The VLAN ID of the SSID.
WMM Enable or disable WMM. WMM (Wi-Fi Multimedia) is a component of the IEEE 802.11e wireless LAN standard for QoS. WMM provides prioritization of wireless data packets from different applications based on four access categories: voice, video, best effort, and background. For an application to receive the benefits of WMM QoS, both it and the client running that application have to have WMM enabled.
Workgroup Bridge Workgroup Bridge feature enables the access point to extend the accessibility of a remote network. In Workgroup Bridge mode, the access point acts as a wireless station (STA) on the wireless LAN. It can bridge traffic between a remote wired network and a wireless LAN. When Workgroup Bridge is enabled, SSID configuration still works to provide wireless services to clients. All access points participating in Workgroup Bridge must have the identical settings for Radio interface, IEEE 802.
Remote MAC Address Normally, Workgroup Bridge connects to a remote access point by matching SSID. When more than one remote access point have the same SSID, Workgroup Bridge can connect to different remote access points. Optional: You can specify the MAC address of the remote access point to limit Workgroup Bridge’s connection to a specific remote access point. The format is xx:xx:xx:xx:xx:xx. VLAN ID Enter the VLAN ID for Workgroup Bridge.
Advanced Settings Configure advanced parameters of wireless radios. Figure 31: Advanced Settings Data - Advanced Settings Screen Band Steering Band Steering Enable or disable Band Steering function. Band Steering is a technology that detects whether the wireless client is dual-band capable. If it is, band steering pushes the client to connect to the less-congested 5 GHz network. It does this by actively blocking the client’s attempts to connect with the 2.4GHz network.
Channel Bandwidth Select the designed channel bandwidth for the wireless radio. • 20MHz - Select if you are not using any 802.11n wireless clients. • 20/40MHz - Select if you are using both 802.11n and non-802.11n wireless devices. • 20/40/80MHz - Select if you are using 802.11ac, 802.11n and non-802.11n wireless devices. Guard Interval Select the guard interval manually for Wireless-N connections. The two options are Short (400 nanoseconds) and Long (800 nanoseconds). The default is Auto.
RTS Threshold Enter the Request to Send (RTS) Threshold value, an integer from 1 to 2347. The default is 2347 octets. The RTS threshold indicates the number of octets in a Medium Access Control Protocol Data Unit (MPDU) below which an RTS/CTS handshake is not performed. Changing the RTS threshold can help control traffic flow through the access point, especially one with a lot of clients.
Chapter 3 Operation and Status 3 Operation You may need to perform the following operations on a regular basis. • If using the Access Control feature, update the Trusted PC database as required. (See Access Control in Chapter 2 for details.) • If using 802.1x mode, update the User Login data on the Windows 2000 Server, and configure the client PCs, as required. System Summary Provide system status of the access point.
Data - System Summary Screen System Summary Device SKU The SKU is often used to identify device model number and region. Firmware Version The version of the firmware currently installed. Firmware Checksum The checksum of the firmware running in the access point. Hardware Version The version of the hardware. Local MAC Address The MAC (physical) address of the wireless access point. Serial Number The serial number of the device. Host Name The host name assigned to the access point.
LAN Status LAN Status displays settings, and status of LAN interface. Figure 33: LAN Status Screen Data - LAN Status VLAN VLAN Enabled or disabled (default). Untagged VLAN Enabled (default) or disabled. When enabled, and if its VLAN ID is equal to Untagged VLAN ID, all traffic is untagged when sent from LAN ports. Untagged traffic can be accepted by LAN ports. If disabled, traffic is always tagged when sent from LAN port and only tagged traffic can be accept from LAN port.
Management VLAN Displays the Management VLAN ID. The VLAN associated with the IP address you use to connect to the access point. Provide a number between 1 and 4094 for the Management VLAN ID. The default is 1. This VLAN is also the default untagged VLAN. If you already have a management VLAN configured on your network with a different VLAN ID, you must change the VLAN ID of the management VLAN on the access point. IPv4/v6 IP Address The IP address of the wireless access point.
Wireless Status Wireless Status displays settings and status of wireless radios and SSIDs. Figure 34: Wireless Status Screen Data - Wireless Status Radio Status Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. Radio Status Indicates whether the radio is enabled. Mode Current 802.11mode (a/b/g/n) of the radio. Channel The channel currently in use. Channel Bandwidth Current channel bandwidth of the radio.
Scheduler State Current scheduler status of the SSID. • N/A No scheduler is enabled on the SSID, or the SSID is disabled by administrator. • Active The SSID is enabled. • Inactive The SSID is disabled. Workgroup Bridge Status Status Status of the Workgroup Bridge: enabled or disabled. Local MAC MAC address of the Workgroup Bridge. Remote SSID SSID of the destination access point on the other end of the Workgroup Bridge link to which data is sent and from which data is received.
Wireless Clients Wireless Clients displays connected clients based on each wireless interface. Figure 35: Wireless Clients Screen Data - Wireless Clients Wireless Interface Select the desired interface from the list. The interfaces include 8 SSIDs per radio. SSID Name Name of the SSID to which the client connects. Client MAC The MAC address of the client. SSID MAC MAC of the SSID to which the client connects. Link Rate The link rate of the client. Unit is Mbps.
Statistics Statistics provides real-time transmitted and received statistics data based on each SSID per Radio, and LAN interface. Figure 36: Statistics Screen Data - Statistics Wireless Radio Select the desired radio from the list. Radio 1 is for 2.4 GHz, and Radio 2 is for 5 GHz. Transmit/Receive • Total Packets - The total packets sent (in Transmit table) or received (in Received table) by the interface.
Log View Log View shows a list of system events that are generated by each single log entry, such as login attempts and configuration changes. Figure 37: Log View Screen Data - Log View Log Messages Log Messages Show the log messages. Buttons Refresh Update the data on screen. Save Save the log to a file on your PC. Clear Delete the existing logs from device.
Chapter 4 Access point Management 4 Overview This chapter covers features available on the wireless access point’s Maintenance menu. • Maintenance • Firmware Upgrade • Configuration Backup/Restore • Factory Default • Reboot • Diagnostics • Ping Test • Packet Capture • Diagnostic Log Firmware Upgrade The firmware (software) in the wireless access point can be upgraded by using HTTP/HTTPS, or TFTP. Check Linksys support website (http://www.linksys.
Figure 38: Firmware Upgrade Screen To perform the firmware upgrade from local PC: 1. 2. 3. Click the Browse button and navigate to the location of the upgrade file. Select the upgrade file. Its name will appear in the Upgrade File field. Click the Upgrade button to commence the firmware upgrade. To perform the firmware upgrade from TFTP server: 1. 2. Enter the IP address of the TFTP server and the source file. The source file is the firmware filename you stored in your TFTP server.
Configuration Configuration backup/restore allows you to download the configuration file from device to external storage, e.g., your PC, or network storage, or to upload a previously saved configuration file from external storage to device. It is highly recommended you save one extra copy of the configuration file to external storage after you are done with access point setup.
Backup/Restore to/from TFTP server Backup Configuration To create a backup file of the current settings: 1. Enter the destination file name you plan to save in TFTP server. 2. Enter the IP address for the TFTP server. Only support IPv4 address here. 3. Click Backup Restore Configuration To restore settings from a backup file: 1. Enter the source file name stored in TFTP server. 2. Enter the IP address for the TFTP server. Only support IPv4 address here. 3.
Factory Default It’s highly recommended you save your current configuration file before you restore to factory default settings. To save your current configuration file, click Maintenance Æ Configuration Backup/Restore. Figure 40: Factory Default Screen Data - Factory Default Screen Factory Default If Yes radio button is clicked and Save button is pressed, your current configuration file will be deleted, and the system will reboot. The access point will go back to factory default mode after reboot.
Reboot Reboot power cycles the device. The current configuration file will remain after reboot. Figure 41: Reboot Screen Data - Reboot Screen Device Reboot If Yes radio button is checked, device will power cycle after Save button is pressed.
Ping Test Ping Test is used to determine the accessibility of a host on the network. Figure 42: Ping Test Screen Data - Ping Test Screen General IP Type Enter the IP type of destination address. IP or URL Address Enter the IP address or domain name that you want to ping. Packet Size Enter the size of the packet. Times to Ping Select the desired number from the drop-list.
Packet Capture Packet Capture is used to capture and store 802.3 packets received and transmitted by the access point based on one specified network interface. Network interface can be radio, SSID or LAN. Figure 43: Packet Size Screen Data - Packet Size Screen Network Interface Select the desired network interface from the drop-down list. The interface can be Radio, SSID or Ethernet. Start Capture Click it to start the capture. You will be asked to specify a local file to store the packets.
Diagnostic Log Diagnostic Log provides system detail information, such as configuration file, system status and statistics data, hardware information, operational status. The information is useful in troubleshooting and working with technical support. Figure 44: Diagnostic Screen Data - Diagnostic Screen Download Click to download the device diagnostic log into a local file.
Appendix A Troubleshooting A Overview This chapter covers some common problems encountered while using the wireless access point, and some possible solutions to them. If you follow the suggested steps and the wireless access point still does not function properly, contact your dealer for further advice. General Problems Problem 1: I can't find new access point on my network. Solution 1: Check the following.
If there is no DHCP Server found, the wireless access point will roll back to an IP address and mask of 192.168.1.252 and 255.255.255.0. Problem 2: My PC can't connect to the LAN via the wireless access point. Solution 2: Check the following: • The SSID and security settings on the PC match the settings on the wireless access point. • On the PC, the wireless mode is set to "Infrastructure" • If using the Access Control feature, the PC's name and address is in the Trusted Stations list.
Appendix B About Wireless LANs B Overview Wireless networks have their own terms and jargon. It is necessary to understand many of these terms in order to configure and operate a wireless LAN. Wireless LAN Terminology 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.
As wireless stations are physically moved through the area covered by an ESS, they will automatically change to the access point that has the least interference or best performance. This capability is called Roaming. (Access points do not have or require roaming capabilities.) Channels The wireless channel sets the radio frequency used for communication. • Access points use a fixed channel. You can select the channel used.
WPA-Enterprise This version of WPA requires a RADIUS server on your LAN to provide the client authentication according to the 802.1X standard. Data transmissions are encrypted using the WPA standard. If this option is used: • The access point must have a "client login" on the RADIUS server. • Each user must have a "user login" on the RADIUS server. • Each user's wireless client must support 802.1X and provide the login data when required. All data transmission is encrypted using the WPA standard.
Appendix C PC and Server C Configuration Overview All wireless stations need to have settings that match the wireless access point. These settings depend on the mode in which the access point is being used. • If using WEP or WPA2-PSK, it is only necessary to ensure that each wireless station's settings match those of the wireless access point, as described below. • For 802.1x modes, configuration is much more complex.
Using WPA2-PSK For each of the following items, each wireless station must have the same settings as the wireless access point. Mode On each PC, the mode must be set to Infrastructure. SSID (ESSID) This must match the value used on the wireless access point. The default value is LinksysSMB24G for radio 1 and LinksysSMB5G for radio 2. Note The SSID is case sensitive. Wireless Security On each client, wireless security must be set to WPA2-PSK.
Using WPA2-Enterprise This is the most secure and most complex system. WPA-Enterprise mode provides greater security and centralized management, but it is more complex to configure. Wireless Station Configuration For each of the following items, each wireless station must have the same settings as the wireless access point. Mode On each PC, the mode must be set to Infrastructure. SSID (ESSID) This must match the value used on the wireless access point.
802.1x Server Setup (Windows 2000 Server) This section describes using Microsoft Internet Authentication Server as the RADIUS server, since it is the most common RADIUS server available that supports the EAP-TLS authentication method. The following services on the Windows 2000 Domain Controller (PDC) are also required. • dhcpd • dns • rras • webserver (IIS) • RADIUS Server (Internet Authentication Service) • Certificate Authority Windows 2000 Domain Controller Setup 1. 2. Run dcpromo.
Figure 46: Components Screen 4. 5. Click Next. Select the Enterprise root CA, and click Next. Figure 47: Certification Screen 6. Enter the information for the Certificate Authority, and click Next.
Figure 48: CA Screen 7. 8. Click Next if you don't want to change the CA's configuration data. Installation will warn you that Internet Information Services are running, and must be stopped before continuing. Click OK, then Finish. DHCP server configuration 1. 2. Click on Start -> Programs -> Administrative Tools -> DHCP Right-click on the server entry, and select New Scope. Figure 49: DHCP Screen 3. 4. 5. Click Next when the New Scope Wizard Begins.
Figure 50: IP Address Screen 6. Add exclusions in the address fields if required. If no exclusions are required, leave it blank. Click Next. 7. Change the Lease Duration time if preferred. Click Next. 8. Select Yes, I want to configure these options now, and click Next. 9. Enter the router address for the current subnet. The router address may be left blank if there is no router. Click Next. 10.
Certificate Authority Setup 1. 2. Select Start -> Programs -> Administrative Tools -> Certification Authority. Right-click Policy Settings, and select New -> Certificate to Issue. Figure 52: Certificate Authority Screen 3. Select Authenticated Session and Smartcard Logon (select more than one by holding down the Ctrl key). Click OK. Figure 53: Template Screen 4. 5. Select Start -> Programs -> Administrative Tools -> Active Directory Users and Computers.
Figure 54: Active Directory Screen 6. Select the Group Policy tab, choose Default Domain Policy then click Edit. Figure 55: Group Policy Tab 7. Select Computer Configuration -> Windows Settings -> Security Settings -> Public Key Policies, right-click Automatic Certificate Request Settings -> New -> Automatic Certificate Request.
Figure 56: Group Policy Screen 8. 9. When the Certificate Request Wizard appears, click Next. Select Computer, click Next. Figure 57: Certificate Template Screen 10. Ensure that your Certificate Authority is checked, click Next. 11. Review the policy change information and click Finish. 12. Click Start -> Run, type cmd and press enter. Enter secedit /refreshpolicy machine_policy This command may take a few minutes to take effect.
Internet Authentication Service (RADIUS) Setup 1. 2. Select Start -> Programs -> Administrative Tools -> Internet Authentication Service Right-click on Clients, and select New Client. Figure 58: Service Screen 3. 4. 5. 6. 7. 8. Enter a name for the access point, click Next. Enter the address or name of the wireless access point, and set the shared secret, as entered on the Security Settings of the wireless access point. Click Finish. Right-click on Remote Access Policies, select New Remote Access Policy.
11. Click Edit Profile... and select the Authentication tab. Enable Extensible Authentication Protocol, and select Smart Card or other Certificate. Deselect other authentication methods listed. Click OK. Figure 60: Authentication Screen 12. Select No if you don't want to view the help for EAP. Click Finish.
Remote Access Login for Users 1. 2. 3. Select Start -> Programs -> Administrative Tools -> Active Directory Users and Computers. Double click on the user who you want to enable. Select the Dial-in tab, and enable Allow access. Click OK.
802.1x Client Setup on Windows XP Windows XP ships with a complete 802.1x client implementation. If using Windows 2000, you can install SP3 (Service Pack 3) to gain the same functionality. If you don't have either of these systems, you must use the 802.1x client software provided with your wireless adapter. Refer to your vendor's documentation for setup instructions. The following instructions assume that: • You are using Windows XP • You are connecting to a Windows 2000 server for authentication.
Figure 63: Wireless CA Screen 5. Select User certificate request and select User Certificate, click Next. Figure 64: Request Type Screen 6. Click Submit.
Figure 65: Identifying Information Screen 7. A message will be displayed and the certificate will be returned to you. Click Install this certificate. Figure 66: Certificate Issued Screen 8. You will receive a confirmation message. Click Yes.
Figure 67: Root Certificate Screen 9. Certificate setup is now complete. 802.1x Authentication Setup 1. 2. 3. Open the properties for the wireless connection, by selecting Start - Control Panel Network Connections. Right-click on the Wireless Network Connection, and select Properties. Select the Authentication Tab, and ensure that Enable network access control using IEEE 802.1X is selected, and Smart Card or other Certificate is selected from the EAP type.
• Your network administrator can advise you of the correct settings for each network. 802.1x networks typically use EAP-TLS. This is a dynamic key system, so there is no need to enter key values. Enabling Encryption To enable encryption for a wireless network, follow this procedure. 1. Click on the Wireless Networks tab. Figure 69: Wireless Networks Screen 2. 3. Select the wireless network from the Available Networks list, and click Configure.
Figure 70: Properties Screen Setup for Windows XP and 802.1x client is now complete.
Using 802.1x Mode (without WPA) This is very similar to using WPA-Enterprise. The only difference is that on your client, you must NOT enable the setting The key is provided for me automatically. Instead, you must enter the WEP key manually, ensuring it matches the WEP key used on the access point. Figure 71: Properties Screen Note: On some systems, the 64-bit WEP key is shown as 40-bit and the 128-bit WEP key is shown as 104-bit.
Regulatory Approvals Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Caution (i) the device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems; (ii) high-power radars are allocated as primary users (i.e. priority users) of the bands 52505350 MHz and 5650-5850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.
