HP WL520 User Manual
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HP WL520 User Manual

HP WL520 User Manual

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hp WL520 AP User Guide
Contents
1
1 1
1 introducing the hp
in
introducing the hp
trodu
cing t
he
hp wl520
hp wl520
introducing the
wireless networking concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
management and monitoring capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
http interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
command line interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
snmp management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
802.11b versus 802.11a networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
feature list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
cell size and coverage area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
installation and initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2 2
2
prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
scantool program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
set basic configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
log into the wl520 unit using the web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
set system name, location and contact information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
set a static ip address for the wl520 device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
set network names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
set wep encryption for each wireless interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
set and change passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
download the latest software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
setup your tftp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
download updates from your tftp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
backup your wl520 configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
copy a configuration file from another wl520 unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
other network settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
configure the wl520 device as a dhcp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
maintain 802.11b client connections using link integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
configure link integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
disable link integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
change your wireless interface settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
802.11a wireless interface card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
802.11b wireless interface card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
auto channel select (acs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
023670/B
v2.1.0
wl520
wl520
0
i

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Summary of Contents for HP WL520

  • Page 1: Table Of Contents

    ....... 2-10...
  • Page 2 ......... 2-25 3 3 3 managing h hp managing the hp wl520 ng the t e hp wl520...
  • Page 3 ........
  • Page 4 ....... 4-23...
  • Page 5 setting ip address using serial port and normal cli ....... . 5-6 hardware and software requirements .
  • Page 6 ....... 6-17...
  • Page 7 management parameters ..........6-31 snmp parameters .

  • Page 8: Wireless Networking Concepts

    Before the WL520 unit can be configured for your specific networking requirements, it must first be initialized. Initialization consists of setting a static IP address and the appropriate IP mask for the WL520 unit so that you can recognize it once it is located in your network.

  • Page 9: Management And Monitoring Capabilities

    WL520 Enterprise MIB hp provides these MIB files on the WL520 CD. You need to compile one or more of the above MIBs into your SNMP program’s database before you can manage the WL520. Refer to the documentation that came with your SNMP manager for instructions on how to compile MIBs.

  • Page 10: 802.11B Versus 802.11A Networks

    Orthogonal Frequency Division Multiplexing (OFDM). The standard requires support for data rates of 6, 12, 24, and 54 Mbits/s. The WL520 unit supports the following data rates: 6, 9, 12, 18, 24, 36, 54 Mbits/s. The IEEE 802.11b standard supports wireless physical layer in the 2.4 GHz band using Direct Sequence Spread Spectrum (DSSS).
  • Page 11 feature fe feature feature ature 2.4 ghz 2.4 ghz 2.4 ghz 2.4 ghz 5 ghz 5 ghz 5 ghz 5 ghz comments comments comments comments (802.11b) (802.11b) (802.11b) (802.11b) (802.11a) (802.11a) (802.11a) (802.11a) AP List No client support for 802.11a SpectraLink VoIP Support Blocking Intra BSS Clients Packet Forwarding...

  • Page 12: Cell Size And Coverage Area

    2.4 ghz (802.11b) 2.4 ghz (802.11b) 2.4 ghz (802.11b) 2.4 ghz (802.11b) 5 ghz (802.11a) 5 ghz (802.11a) 5 ghz (802.11a) hz ( 802 1a Distance Between APs large (default) medium small minicell microcell Multicast Rate 1 Mbit/sec 2 Mbits/sec (default) 5.5 Mbits/sec 11 Mbits/sec Available options depend on Distance Between...

  • Page 13: Installation And Initialization

    The WL520 is designed to support both 2.4 GHz (IEEE 802.11b) radio cards and 5 GHz (IEEE 802.11a) radio cards. The hp WL520 AP 5 GHz kit for the WL520 has an antenna adapter which snaps into place on the existing wall mounting bracket.

  • Page 14: Configuring The Hp Wl520

    Since each network is unique, the WL520 must be configured to operate in your network environment. Most administrators use the HTTP Interface (web browser) for configuration; however, the Command Line Interface (CLI) provides the same functionality by entering CLI Commands or scripts from Terminal and Telnet sessions. For information about...

  • Page 15: Prerequisites

    Settings. Network Name (SSID of the wireless cards) Each wireless interface of your WL520 must be given a Network Name before users can sign on. This is not the same as the System Name, which applies only to the WL520 unit. This may apply to the isolated unit, the immediate, active network, or to multiple networks.

  • Page 16: Set Basic Configuration Parameters

    Once you have a valid IP Address assigned to your WL520 and an Ethernet connection, use your web browser to configure the WL520 through the Web Interface. log into the wl520 unit using the web interface...
  • Page 17 In some cases, the WL520 reminds you that it must be rebooted for a change to take effect. In a given session, you can wait to reboot until all changes have been made. After entering or editing information on configuration screens, click OK to save O O K changes, or click Cancel to restore previous settings.

  • Page 18: Set System Name, Location And Contact Information

    System System Enter the name of the WL520 device, its location within your network or its physical location, such as “Front Lobby” or Engineering, and the name, phone number and e-mail address of the person responsible for this device. Click...

  • Page 19: Set Network Names

    Enter a fixed IP Address for your WL520 unit, the IP mask, and default gateway IP Address you want to use. NOTE: The IP Mask of the WL520 unit needs to match the IP Mask of your network. If you are setting up the WL520 device from a client station, check the IP mask of your computer before proceeding.

  • Page 20: Set Wep Encryption For Each Wireless Interface

    W re Wireless B Wireless B less Enter Network Names (SSID) for the PC Cards in wireless Slots A and/or B in the WL520 device. Select OK. O O K set wep encryption for each wireless interface set wep encryption for each wireless interface...

  • Page 21: Set And Change Passwords

    Select a key to use for WEP encryption. NOTE: Client stations must have the same encryption key to be able to communicate with the WL520 device. 6. For 802.11b only, set if you want to prevent clients that do not have WEP enabled...

  • Page 22: Download The Latest Software

    If a TFTP server is not configured and running, you will not be able to download and upload images and configuration files to/from the WL520. Remember that the TFTP server does not have to be local, so long as you have a valid TFTP IP Address.

  • Page 23: Backup Your Wl520 Configuration File

    WL520 device to factory defaults at some time. NOTE: Record the name of this configuration file and the IP address of the WL520 unit so you can easily find it if you need to download it. copy a configuration file from another wl520 unit...

  • Page 24: Other Network Settings

    Use DHCP configuration to provide dynamic client IP Addresses from one or more IP Pool Tables. Enable the DHCP Server to allow the WL520 to assign clients IP Addresses from IP Pool Tables. Deselect the Status check box to prevent client IP Address assignment from the WL520.

  • Page 25: Maintain 802.11B Client Connections Using Link Integrity

    This feature is only applicable to 2.4 GHz (802.11b) cards. The Link Integrity feature checks the link between the WL520 and the nodes on the backbone. These nodes are listed by their IP address on the Link Integrity IP Address Table, and serve as backup. If the link goes down, the client will connect to another WL520 in your network that still communicates with the server.

  • Page 26: Disable Link Integrity

    18, 24, 36, 48, 54 Mbits/s, or Auto Fallback for standard 802.11a mode. If Turbo mode is enabled, choose between 12, 18, 24, 36, 48, 72, 98, 108 Mbits/s, or Auto Fallback. The Auto Fallback feature allows the WL520 unit to select the best transmit rate based on the cell size.

  • Page 27: 802.11B Wireless Interface Card

    Range is 1 - 31 characters; default is “My Wireless Network A” for card in Slot A and “My Wireless Network B” for card in Slot B. – . By default this feature is enabled. The WL520 device will scan the area for other WL520 Enable Auto Channel Select (ACS) Enable Auto Channel Select (ACS)

  • Page 28: Auto Channel Select (Acs)

    The first WL520 turned on in an area assigns itself the default channel (which differs based on card type and regulatory region). When a second WL520 unit is turned on in the vicinity of the first WL520 device, the Auto Channel Select feature changes the frequency channel of the second unit so there is no interference between the two units.

  • Page 29: Dynamic Frequency Selection (Dfs)

    802.11a cards sold in Europe use a technique called Dynamic Frequency Selection (DFS) to automatically select an operating channel. During boot-up, the WL520 scans the available frequency and selects a channel that is free of interference. If the WL520 subsequently detects interference on its channel, it automatically reboots and selects another channel that is free of interference.
  • Page 30 In a typical office, smalls cells may have a 3 meter (10 ft.) diameter and an WL520 device every 6 m (20 ft.), which would be considered high density. In contrast, large cells in a typical warehouse may have a 27.5 meter (90 ft.) diameter and an WL520 unit every 60 m (200 ft.), considered low density.

  • Page 31: Multicast Rate

    AP. In addition, a small cell with several stations located close to the WL520 unit can actually transmit information faster than a larger cell with only a few stations located farther from the WL520 device.

  • Page 32: Ethernet Settings

    Select which interfaces will be available through the Wireless, Ethernet, and Serial Port interfaces of the WL520 unit. Figure 2-19 Figure 2-19 Figure 2-19...

  • Page 33: Set Http Interface Management Services

    The serial port interface on the WL520 device is enabled at all times. You can set the following parameters as needed: – Baud Rate Baud Rate .

  • Page 34: Add An Entry To The Mac Access Control Table

    Edit Select the MAC Address you want to disable or delete. Click NOTE: For larger networks that include multiple WL520 devices, you may prefer to maintain this list on a centralized location using the RADIUS Authentication Settings. radius authentication settings...
  • Page 35 Other Security Configuration Settings Figure 2-21 Figure 2-21 Figure 2-21 Figure 2-21 Security Configuration Screen - RADIUS Authentication Security Configuration Screen - RADIUS Authentication Security Configuration Screen - RADIUS Authentication Security Configuration Screen - RADIUS Authentication – . Click inside the check box to provide authentication by the RADIUS server. Deselect Enable RADIUS MAC Access Control Enable RADIUS MAC Access Control Enable RADIUS MAC Access Control...

  • Page 36: Ieee 802.1X Security Mode

    Prior to successful authentication, an unauthenticated client PC cannot send any data traffic through the WL520 device to other systems on the LAN. The WL520 device inhibits all data traffic from a particular client PC until the client PC is authenticated.

  • Page 37: Configuring Security Settings

    EAPOL format. Negotiations take place between the client PC and the RADIUS server. After the client has been successfully authenticated, the client PC receives an encryption key from the WL520 (if the EAP type supports automatic key distribution).

  • Page 38: Security And Wireless Distribution Systems (Wds)

    Refer to the documentation that came with your wireless client for assistance with configuring its Network Name. If the Network Name is the same in both the client and the WL520 device, then verify the settings in the Security Properties table, which includes encryption settings.
  • Page 39 3 3 3 3 managing the managing the hp managing the managing the hp wl520 wl520 wl520 wl520 in this chapter in this chapter in this chapter in this chapter Management Interface Monitoring Network Statistics – View Hardware/Software Component Information –...

  • Page 40: Management Interface

    Once you have a valid WL520 IP Address and an Ethernet connection, you may use your web browser to issue commands and monitor network statistics. The Command Line Interface (CLI) also provides a method for issuing commands and viewing network statistics using Telnet and Terminal clients.

  • Page 41: Monitoring Network Statistics

    Monitoring Network Statistics monitoring network statistics monitoring network statistics monitoring network statistics monitoring network statistics To observe the WL520 network statistics, click the button. Result: The screen appears. Each tab contains Monitor Monitor Monitor Monitor Monitor information for monitoring specific statistics.

  • Page 42: Monitoring Icmp Statistics

    This tab provides statistical information for both received and transmitted messages directed to the WL520 device. Not all network traffic is counted in ICMP (Internet Control Message Protocol) statistics. Figure 3-4...

  • Page 43: Monitoring Learn Table Statistics

    Monitoring Network Statistics monitoring learn table statistics monitoring learn table statistics monitoring learn table statistics monitoring learn table statistics This tab displays information relating to network bridging. It reports the MAC address for each node that the device has learned is on the network and the interface on which the node was detected. There can be up 10,000 entries in the Learn Table.

  • Page 44: Monitoring Radius Server Statistics

    Monitoring Network Statistics monitoring radius server statistics monitoring radius server statistics monitoring radius server statistics monitoring radius server statistics This tab provides RADIUS authentication information for both the Primary and Backup RADIUS servers. NOTE: RADIUS authentication must be enabled for this information to be valid. Figure 3-8 Figure 3-8 Figure 3-8...

  • Page 45: Monitoring Interfaces Statistics

    Monitoring Network Statistics monitoring interfaces statistics monitoring interfaces statistics monitoring interfaces statistics monitoring interfaces statistics This tab displays information for the Ethernet interface, as well as each WL110 PC Card interface. The Operational Status can be up, down, or testing. Figure 3-9 Figure 3-9 Figure 3-9...

  • Page 46: Monitoring Remote Link Test Statistics

    This tab displays information on the quality of the wireless link to clients and other WL520 units in the Wireless Distribution System. NOTE: The Remote Link Test feature is only available for 2.4 GHz (802.11b) clients.

  • Page 47: Issuing System Commands

    Commands Screen - Download Commands Screen - Download Commands Screen - Download Commands Screen - Download Use the tab to download Configuration, AP Image, and Bootloader files to the WL520. A TFTP server must be Download Download Download Download running and configured to point to the directory containing the file.

  • Page 48: Upload

    Figure 3-15 Figure 3-15 Command Screens - Reboot Command Screens - Reboot Use the tab to save configuration changes (if any) and reset the WL520. Entering a value of 0 (zero) seconds causes an Reboot Reboot Reboot Reboot immediate reboot. Note that , covered below, does not save configuration changes.

  • Page 49: Reset

    Reset Reset RESET RESET RESET RESET indicator side of the unit. Since this will reset the current WL520 IP Address, a new IP Address must be assigned. Also refer to Recovery Procedures. help link help link help link help link...
  • Page 50 Alarm Host Table Syslog Bridge Configuration Settings Setup the WL520 device as a simple bridge or a wireless repeater, Static MAC Address Filter setup loop avoidance through the Spanning Tree protocol and Storm Threshold protection. Also, allows you to filter packets based on MAC...

  • Page 51: Network Settings

    Figure 4-1 DHCP Server Configuration Screen DHCP Server Configuration Screen – . Place a check mark in the box provided to allow the WL520 to assign clients IP Addresses from IP Pool Enable DHCP Server Enable DHCP Server Enable DHCP Server Enable DHCP Server Tables.

  • Page 52: Dhcp Ip Pool Table Settings

    This feature checks the link between the WL520 and connected network server(s). If the link goes down then the client will connect to another WL520 in your network that still communicates with the server.

  • Page 53: Vlan Support

    The WL520 device assigns clients to one of two VLANs designated by a network name. First, each one of the wireless NICs in the WL520 device is configured with a unique network name and an 802.1Q-compliant VLAN identifier. Each NIC represents...

  • Page 54: Traffic Management

    EMPLOYEE workgroup and the other, for a GUEST workgroup. In this scenario, the WL520 device would assign every packet it accepted to a VLAN. Each packet would then be identified as EMPLOYEE or GUEST, depending on which wireless NIC received it. The WL520 device would insert VLAN headers or “tags”...

  • Page 55: Setting Up Independent Vlan Workgroups (Tagged & Untagged)

    A “tagged” user VLAN is created when a VLAN ID between 1 and 4094 (per the 802.1Q standard) is configured for one of the wireless NICs and VLAN is enabled. The WL520 applies a VLAN header to tag traffic from wireless clients (members of a “tagged”...

  • Page 56: Setting Up A Single Vlan Workgroup

    The VLAN feature enables all wireless clients that access the network through the same WL520 to be configured as members of the same VLAN. In this scenario, each wireless NIC is configured with the same VLAN ID. The same VLAN header or tag is then applied to all traffic received from wireless clients and transmitted on the wired or wireless backbone.

  • Page 57: Managing The Wl520 From A Wireless Host

    The VLAN feature enables wireless clients to manage the WL520. If the VLAN Management ID matches a VLAN User ID, then those wireless clients who are members of both VLANs will have WL520 management access.

  • Page 58: Managing Ip Access

    IP Access Table Configuration Screen The Management IP Access table is used to specify a station or stations that are authorized to manage the WL520 device through available management services (SNMP, HTTP [Web], and Telnet [CLI]). To configure this table, click Add...

  • Page 59: Configuring Management Service Interfaces

    Configure the interface or interfaces (Ethernet, Wireless-A, Wireless-B, All Interfaces) from which you will manage the WL520 device via SNMP. You can also select Disabled to prevent a user from accessing the WL520 device via SNMP. Reboot the WL520 for this setting to take effect.

  • Page 60: Setting Filters

    Enable Ethernet Filter Status. Place a checkmark in the box provided to enable filtering. If disabled, then the Enable Ethernet Filter Status. Place a checkmark in the box provided to enable filtering. If disabled, then the Enable Ethernet Filter Status. Place a checkmark in the box provided to enable filtering. If disabled, then the WL520 will will...

  • Page 61: Advanced Filtering

    Port-based filtering enables you to control wireless user access to network services by selectively blocking TCP/UDP protocols through the WL520. A user specifies a Protocol Name, Port Number, Port Type (TCP, UDP, or TCP/UDP), and filtering interfaces (all interfaces, no interfaces, or any combination of Wireless Slot A, Wireless Slot B, and Ethernet) in order to block access to services, such as Telnet and FTP, and traffic, such as NETBIOS and HTTP.

  • Page 62: Adding Tcp/Udp Port Filters

    (any combination of the following): Interface Interface Interface Interface Wireless Slot A; Wireless Slot B; Ethernet 9. Click NOTE: Filters are enabled by default. Frames that the WL520 receives on the specified interface(s) with the specified TCP/UDP destination port, are discarded. 4-13...

  • Page 63: Editing Tcp/Udp Port Filters

    To add an entry and enable the WL520 to send SNMP trap messages to a Trap Host, click , and then specify the IP Address and Password for the Trap Host.

  • Page 64: Syslog

    The Syslog messaging system enables the WL520 to transmit event messages to a central server for monitoring and troubleshooting. The access point logs “Session Start (Log-in)” and “Session Stop (Log-out)” events for each wireless client as an alternative to RADIUS accounting.

  • Page 65: Bridge Configuration Settings

    Syslog Lowest Priority Logged Syslog Lowest Priority Logged Syslog Lowest Priority Logged. selected priority and below. For example, if set to 6, the WL520 will transmit event messages labeled priority 0 to 6 to the Syslog server. 6. Click bridge configuration settings...

  • Page 66: Information Masks

    Multicast messages/second. When the number of frames for a port or identified station exceeds the maximum value per second, the WL520 will ignore all subsequent messages issued by the particular network device, or ignore all messages of that type.

  • Page 67: Intra Bss Subscriber Blocking

    (such as wireless public spaces) may wish to block traffic between wireless subscribers that are associated with the same WL520 to prevent unauthorized communication and to conserve bandwidth. This feature enables you to prevent wireless subscribers within a BSS from exchanging traffic.

  • Page 68: Packet Forwarding

    The Packet Forwarding feature enables you to redirect traffic generated by wireless clients that are all associated to the same WL520 to a single MAC address. This filters wireless traffic without burdening the WL520 and provides additional security by limiting potential destinations or by routing the traffic directly to a firewall. You can redirect a specific port (Ethernet or WDS) or allow the bridge’s learning process (and the forwarding table entry for the selected MAC address) to determine the optimal...

  • Page 69: Wireless Distribution System (Wds)

    Each wireless card can support up to six WDS links, and each link is mapped to a logical port on the WL520 (WDS ports). WDS ports behave like Ethernet ports on the WL520 but BSS ports are handled differently: the WL520 learns by association on BSS ports and from frames on WDS/Ethernet ports.

  • Page 70: Wds Setup Procedure

    Wireless Interface Screen - WDS Configuration 1. Write down the MAC Address of the hp wireless PC Card WL110 inside the wireless slot of the WL520 that you wish to include in the wireless distribution system (this value is printed on a label on the back of the WL110 PC Card).

  • Page 71: Setup The Wds 802.1X Security Mode

    802.1x security mode setup the wds 802.1x security mode To set up a Wireless Distribution System (WDS) with 802.1x security mode, set the WL520 unit in mixed mode and give each WL520 unit in the WDS the same encryption key 1: 1.

  • Page 72: Wireless Port Mapping

    Slot A and Slot B of the WL520 device wireless distribution link. This WL520 unit should not be connected to a wired interface. Please note: A slot may repeat up to six wired links. Also, the other two wired WL520 units should be configured so that one slot partners with the Wireless WDS partner.

  • Page 73: Session Length

    A client does not transmit any data to the WL520 for a fixed amount of time. A client is detected on a different interface. If the client roams from one WL520 to another, one session is terminated and a new session is begun. NOTE: This feature requires RADIUS authentication using MAC Access Control or 802.1x.

  • Page 74: Radius Dns Host Name Support

    DNS Names are familiar names used to identify network hosts instead of IP addresses. For your convenience, the WL520 can be configured as a DNS client to recognize the DNS host name of your RADIUS server (so you can specify a RADIUS Server’s name rather than its IP address in the RADIUS server configuration screens).
  • Page 75 RADIUS Authentication Server TFTP Server LED Indicators NOTE: This section helps you locate problems related to the WL520 device setup. For details about RADIUS, TFTP, Serial communications program (such as HyperTerminal), Telnet applications or web browsers, please refer to their respective documentation.

  • Page 76: Troubleshooting Concepts

    1. Double-check the physical network connections. Use a known-good unit to make sure the network connection is present. Once you have the WL520 IP Address, you can use the “Ping” command over Ethernet to test the IP Address. If the WL520 responds to the Ping, then the Ethernet Interface is working properly.

  • Page 77: Client Computer Cannot Connect

    IP Address of the WL520 unit in question. 3. To find the current IP Address using DHCP, check the IP Client Table in the DHCP Server to find the current WL520 IP Address, match to the WL520 MAC Address in the table to the one on your unit.

  • Page 78: Client Connection Problems

    Network Network 2. If you are not using the DHCP feature on the WL520 unit, then make sure that your local DHCP server is operating on the same subnet as your WL520 device. 3. From the client computer, use the “ping” network command to test the connection with the WL520 unit. If the WL520 device responds, but you still cannot connect to the Internet, there may be a physical network configuration problem (contact your network support staff).

  • Page 79: Recovery Procedures

    RELOAD RELOAD RELOAD values are restored. 2. If not using DHCP, use the ScanTool or normal CLI to set the WL520 IP Address, IP Mask, and so on. Please refer to Using the Command Line Interface for CLI information. forced reload procedure...

  • Page 80: Download Procedure

    When downloading has stopped, the WL520 is ready for configuration, providing the WL520 IP Address is correct. 7. Once the WL520 image is downloaded and you have a valid WL520 IP Address, configure the WL520 as described in Configuring the hp WL520.

  • Page 81: Initializing The Ip Address Using Normal Cli

    After installing the serial port cable, you may use the CLI to communicate with the WL520. You may use most generic terminal programs, such as HyperTerminal. Once the IP Address has been assigned, use the HTTP Interface or the CLI to complete configuration.

  • Page 82: System Alarms (Traps)

    System Alarms (Traps) system alarms (traps) system alarms (traps) system alarms (traps) system alarms (traps) security alarms security alarms security alarms security alarms oriTrapAuthenticationFailure A client has failed to authenticate using one of the following authentication methods: MAC Access Control Table, RADIUS MAC Authentication, or 802.1x Authentication (for 802.1x, EAP type is specified) oriTrapUnauthorizedManagerDetected An unauthorized manager has attempted to view and/or modify parameters...

  • Page 83: Related Applications

    If a TFTP server is not configured and running, you will not be able to download and upload images and configuration files to/from the WL520. Remember that the TFTP server does not have to be local, so long as you have a valid TFTP IP Address.

  • Page 84: Using The Command Line Interface

    This section provides details for the Command Line (CLI) Interface used to manage an hp WL520 AP WL520 device. CLI commands can be used to initialize, configure, and manage network operation of the Access Point.

  • Page 85: Important Terminology

    important terminology important terminology important terminology important terminology Configuration Files - Database files containing the current Access Point configuration. Configuration items include the IP Address and other network-specific values. Config files may be downloaded to the Access Point or uploaded for backup or troubleshooting.

  • Page 86: Command Line Interface (Cli) Variations

    The Bootloader CLI is a minimal subset of the normal CLI used to perform initial configuration of the WL520 device. This interface is only be accessible via the serial interface if the WL520 unit does not contain an image (binary) or the TFTP operation has failed as result of the download command for an image.

  • Page 87: Cli Command Types

    CLI Command Types cli command types cli command types cli command types cli command types This guide divides CLI Commands into two categories: Operational and Parameter Control. operational cli commands operational cli commands operational cli commands operational cli commands This type affects Access Point behavior, such as downloading, rebooting, and so on. After entering commands (and parameters, if any) press the Enter key to execute the Command Line.
  • Page 88 CLI Command Types example 3. display parameters for set and show example 3. display parameters for set and show example 3. display parameters for set and show example 3. display parameters for set and show Example 3a allows you to see every possible parameter for the set (or show) commands. Notice from example 3a that the list is very long.

  • Page 89: Done, Exit, Quit

    CLI Command Types example 4. display prompts for successive parameters example 4. display prompts for successive parameters example 4. display prompts for successive parameters example 4. display prompts for successive parameters Enter the command, a space, and then "?". Then, when the parameter prompt appears, enter the parameter value. Result: The parameter is changed and a new CLI line is echoed with the new value (in the first part of the following example, the value is the IP Address of the TFTP server).

  • Page 90: Help

    CLI Command Types help help help help Displays instructions on using control-key sequences for navigating a Command Line, and displays command information and examples. 1. Using help as the only argument: [Device Name]>help<space> Figure 6-7 Figure 6-7 Figure 6-7 Figure 6-7 Results of “help ”...

  • Page 91: Search

    Uploads the specified file from WL520 to TFTP Server directory. Executing ‘upload” with the asterisks, “*”, character will make use of the previously set/stored TFTP parameters. Executing 'upload' without parameters will display command help and usage information.

  • Page 92: Set" And "Show" Command Examples

    CLI Command Types “set” and “show” command examples “set” and “show” command examples “set” and “show” command examples “set” and “show” command examples In general, you will use the CLI "show" Command to view current parameter values, and use the CLI "set" Command to change parameter values.
  • Page 93 CLI Command Types example 5 - show the group parameters example 5 - show the group parameters example 5 - show the group parameters example 5 - show the group parameters In this example you can view all elements of a group or table. Syntax: [Device Name]>...

  • Page 94: Using Tables & User Strings

    Since there are several string objects supported by the WL520 device, a string delimiter is required for the strings to be interpreted correctly by the command line parser. For this CLI implementation, the single quote or double quote character can be used at the beginning and at the end of the string.

  • Page 95: Configuring Objects That Require Reboot

    Certain objects supported by hp WL520 AP devices require the device to be rebooted in order for the changes to take effect. In order to inform the end-user of this behavior, the CLI shall provide informational messages when the user has configured an object or object(s) that requires the device to be rebooted.

  • Page 96: Configuring The Wl520 Unit Using Cli Commands

    The CLI commands can be used to access, configure, and manage your WL520 device using Telnet or a terminal emulation application, such as HyperTerminal. Log into the WL520 unit using Telnet: Go to the DOS command prompt on your computer.

  • Page 97: Set Basic Configuration Parameters Using Cli Commands

    NOTE: The IP Mask of the WL520 unit must match your network IP Mask. If you are setting up the WL520 device from a client station, check the IP mask of your computer before proceeding.

  • Page 98: Set Network Names For Each Wireless Interface

    CAUTION: Client stations must have the same encryption key to be able to communicate with the WL520 device. Each Wireless Interface can only support one Key Length (so each of the configured keys must have the same length). The available key sizes vary based on card type.

  • Page 99: Change Passwords

    CAUTION: We strongly urge your to change the default passwords to restrict access to your network devices to authorized personnel. We also recommend that you document your WL520 configuration using the work sheets provided for you in the chapter, Recording Your Configuration Settings.

  • Page 100: Other Network Settings

    There are other configuration settings that you may want to set for your WL520 unit. Some of them are listed below. – Configure your WL520 device as a DHCP Server –...

  • Page 101: Change Your Wireless Interface Settings

    4 = wireless card in Slot B [Device Name]>set wif <3 or 4> closedsys <enable/disable> NOTE: When disabled, a client configured with the Network Name “ANY” can connect to the WL520. This feature is only available for 802.11b wireless cards. enable/disable load balancing...

  • Page 102: Set The Distance Between Aps

    The distance between APs should not be approximated. It is calculated by means of a manual Site Survey, in which an WL520 unit is set up and clients are tested throughout the area to determine signal strength and coverage, and local limits such as physical interference are investigated.

  • Page 103: Configure Mac Access Control

    [Device Name]>set macacltbl <index> status <disable/delete> [Device Name]>show macacltbl NOTE: For larger networks that include multiple WL520 devices, you may prefer to maintain this list on a centralized location using the RADIUS parameters (see Set RADIUS Parameters).

  • Page 104: Set Radius Parameters

    Other Network Settings set radius parameters set radius parameters set radius parameters set radius parameters configure radius authentication server configure radius authentication server configure radius authentication server configure radius authentication server [Device Name]>set radiustbl <index> status enable seraddrfmt <ipaddr or name> ipaddr <RADIUS IP address or name>...
  • Page 105 Other Network Settings configure radius accounting server configure radius accounting server configure radius accounting server configure radius accounting server [Device Name]>set radacctbl <index> status enable seraddrfmt <ipaddr or name> ipaddr <RADIUS IP address or name> port <user defined> ssecret <user defined> responsetm <1 to 4 seconds>...

  • Page 106: Parameter Tables

    IP Access Table Parameters - Configure range of IP addresses that can access the WL520 SNMP Table Host Table Parameters - Enter the list of IP addresses that will receive alarms from the WL520 Telnet Parameters - Telnet Port setup...

  • Page 107: System Parameters

    Component Interface Table Subgroup sysinvmgmtcmpiftbl NOTE: The inventory management commands display advanced information about the WL520’s installed components. You may be asked to report this information to a technical representative if you contact customer support. network parameters network parameters network parameters...

  • Page 108: Vlan Parameters

    Parameter Tables DHCP Server Group dhcp DHCP Server Status Integer enable (1) (default) dhcpstatus disable (2) delete (3) Gateway IP Address IpAddress User Defined dhcpgw Primary DNS IP Address IpAddress User Defined dhcppridnsipaddr Secondary DNS IP Address IpAddress User Defined dhcpsecdnsipaddr Number of IP Pool Table Entries Integer32 dhcpippooltblent...

  • Page 109: Ethernet Interface Parameters

    Since the WL520 devices support two WL110 PC Card slots, we differentiate the two cards by using the table index: — Slot A = index 3 — Slot B = index 4 The wireless interface group parameter is , which displays the objects associated with both PC Cards A and B.

  • Page 110: Wireless 802.11A Parameters

    Parameter Tables name name name name type type type type values values values values access access access access cli parameter cli parameter cli parameter cli parameter Transmit Rate Integer32 Reported in 500 Kb/sec txrate intervals: 0 (auto fallback) 2 (1 Mbit/sec) 4 (2 Mbit/sec) (default) 11 (5.5 Mbit/sec) 22 (11 Mbit/sec)

  • Page 111: Wireless Distribution System (Wds) Parameters

    Parameter Tables name name name name type type type type values values values values access access access access cli parameter cli parameter cli parameter cli parameter RTS/CTS Medium Reservation Integer 0 – 2347 medres Default is 2347 (off) MAC Address PhyAddress 12 hex digits macaddr...

  • Page 112: Wireless Interface Security Parameters

    The following table details the WEP encryption parameters for the WL520. This information applies to both the 802.11a and the 802.11b wireless interfaces. name name...
  • Page 113 Parameter Tables radius authentication radius authentication radius authentication radius authentication name name type type values values access access cli parameter cli parameter name name type type values values access access cli parameter cli parameter RADIUS Authentication Table radiustbl Primary RADIUS (index) 1 Backup RADIUS (index) 2...

  • Page 114: Mac Access Control Parameter

    Parameter Tables dns client for radius name resolution dns client for radius name resolution dns client for radius name resolution dns client for radius name resolution name name type type values values access access cli parameter cli parameter name name type type values...

  • Page 115: Ip Access Table Parameters

    Parameter Tables ip access table parameters ip access table parameters ip access table parameters ip access table parameters When creating table entries, you may either specify the argument name followed by argument value or simply entering the argument value. When only the argument value is specified, then enter the values in the order depicted by the following table. CLI applies default values to the omitted arguments.

  • Page 116: Tftp Server Parameters

    Parameter Tables tftp server parameters tftp server parameters tftp server parameters tftp server parameters These parameters relate to upload and download commands. When a user executes an upload and/or download Command, the specified arguments are stored in TFTP parameters for future use.

  • Page 117: Proxy Arp Parameters

    Parameter Tables proxy arp parameters proxy arp parameters proxy arp parameters proxy arp parameters name name type type values values access access cli parameter cli parameter name name type type values values access access cli parameter cli parameter Proxy ARP Group parp Status...

  • Page 118: Tcp/Udp Port Filtering

    The Heartbeat parameters are advanced settings not available via the HTTP interface. When Heartbeat is enabled, the WL520 periodically sends a message to the Syslog server to indicate that it is active. The frequency with which the heartbeat message is sent depends upon the setting of the Heartbeat Interval.

  • Page 119: Iapp Parameters

    The table described below configures the Syslog hosts that will receive message from the WL520. You can configure up to ten Syslog hosts. Note that you can only configure one Syslog host via the HTTP interface (row 1, which defaults to 10.0.0.2).

  • Page 120: Bridging Parameters

    Parameter Tables bridging parameters bridging parameters bridging parameters bridging parameters static mac address filter table static mac address filter table static mac address filter table static mac address filter table name name name name type type type type values values values values access...

  • Page 121: Storm Threshold Parameters

    The following parameters control the Intra BSS traffic feature, which prevent wireless clients that are associated with the same WL520 from communicating with each other: name name name...

  • Page 122: Cli Monitoring Parameters

    Using the “show” command with the following table parameters will display operating statistics for the WL520 (these are the same statistics that are described in Monitoring Network Statistics for the HTTP Web interface).
  • Page 123 We recommend keeping a copy of the configuration settings for each of the WL520 devices in your network. The information below is hard-coded in your system and can be viewed from the Web Interface pages by clicking the Configure button and viewing the System and Interfaces screens.

  • Page 124: Configuration Settings

    Configuration Settings...
  • Page 125 Configuration Settings...
  • Page 126 Configuration Settings...
  • Page 127 Configuration Settings...
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  • Page 130 Configuration Settings...
  • Page 131 Configuration Settings...
  • Page 132 Configuration Settings 7-10...
  • Page 133 Configuration Settings 7-11...
  • Page 134 Configuration Settings 7-12...
  • Page 135 Configuration Settings 7-13...
  • Page 136 Configuration Settings 7-14...
  • Page 137 Configuration Settings 7-15...
  • Page 138 Configuration Settings Table 7-3 Table 7-3 Table 7-3 Table 7-3 Bridge Parameters - Spanning Tree - Priority Path and Cost Table Bridge Parameters - Spanning Tree - Priority Path and Cost Table Bridge Parameters - Spanning Tree - Priority Path and Cost Table Bridge Parameters - Spanning Tree - Priority Path and Cost Table port port...

  • Page 139: Hardware Specifications

    Dimensions (H x W x L) = 6.5 x 18.5 x 26 cm (2.5 x 7.25 x 10.25 in.) Weight = 1.75 Kg (3.5 lb.) 802.11a antenna adapter...

  • Page 140: Ethernet Interface

    10/100 Base-T, RJ-45 female socket pcmcia interface pcmcia interface pcmcia interface pcmcia interface PC Card Slot (A & B) = Standard PC Card slot for hp wireless PC Card WL110 serial port interface serial port interface serial port interface serial port interface...

  • Page 141: Radio Specifications

    Radio Specifications radio specifications radio specifications radio specifications radio specifications 802.11a radio certification is not available in all countries. Contact your sales representative for details. 802.11b radio certification is available in the US/Canada (FCC), Japan (VCCI), Europe (ETSI), and France. 802.11b channel frequencies 802.11b channel frequencies 802.11b channel frequencies...

  • Page 142: Wireless Communication Range

    Radio Specifications wireless communication range wireless communication range wireless communication range wireless communication range The range of the wireless signal is related to the composition of objects in the radio wave path, and the transmit rate of the wireless communication. Communications at a lower transmit range may travel longer distances. NOTE: The range values listed in the Communications Range Chart are typical distances as measured at the development laboratories.

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