Page 1: Access Point Ap
Spectrum24 Access Point AP-3020 Product Reference Guide PRE-RELEASE 70-20504-02 April 1999 www.symbol.com...
Page 2 Copyright © 1999 by Symbol Technologies, Inc. All rights reserved. No part of this publication may be modified or adapted in any way, for any purposes without permission in writing from Symbol. The material in this manual is subject to change without notice.
Page 3: About This Document
About This Document This document covers...and has the following sections: • • • Reference Documents This reference guide refers to the following documents: Part Number Document Title 70-xxxxx-01 Title RFCs (Request For Comments) can be found on the Web at: http://www.ctrl-c.lin.se/ftp/DOC/RFC. Conventions Keystrokes are indicated as follows: ENTER...
Page 4 Indicates tips or special requirements. Indicates conditions that can cause equipment damage or data loss. Indicates a potentially dangerous condition or procedure that only Symbol- trained personnel should attempt to correct or perform. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 5: Table Of Contents
Contents Chapter 1 Introduction .................... 1 1.1 Ethernet Access Point (AP) ............... 1 1.1.1 New Features ..............3 1.2 Radio Basics .................. 3 1.2.1 S24 Network Topology............4 1.2.2 Quick Wireless AP Setup ............8 1.2.3 Cellular Coverage ............... 9 1.2.4 Site Topography ..............
Page 6 2.2.1 Entering Admin Mode ............47 2.2.2 Changing the Access to the UI ..........48 2.2.3 Configuring for Dial-Up to the UI .......... 49 2.2.4 Navigating the UI Via a Web Browser ........50 2.3 Access Point Installation ..............51 2.4 Configuring System Parameters ............
Page 7 2.12 Setting Logging Options ..............80 2.13 Manually Updating AP Firmware............ 82 2.13.1 Updating using TFTP ............82 2.13.2 Updating using Xmodem............. 85 2.14 Auto Upgrade all APs Via Messaging..........88 2.15 Performing Pings................90 2.16 Mobile IP Using MD5 Authentication ..........94 2.17 Saving the Configuration ...............
Page 8 4.4 Attaching the Antenna(s) ..............130 4.4.1 Antenna Extension Cables ........... 131 4.5 Power Options ................131 4.6 Mounting the AP ................132 4.7 Connecting the Power Adapter............132 4.8 LED Indicators................133 4.8.1 WLAP mode LED display............. 134 4.9 Troubleshooting ................
Page 9: Chapter 1 Introduction
LANs and Spectrum24 wireless networks. It provides transparent access between Ethernet wired networks and radio-equipped mobile units (MUs). MUs include the full line of Symbol Spectrum24 terminals, scanners, third- party devices and other devices. The AP provides 1 and 2 Mbps data transfer rate on the radio network.
Page 10 Introduction The AP has the following features: • built-in diagnostics including a power-up self-check • a four-way bridging architecture (wireless, Ethernet, PPP , internal stack) • wireless MAC interface • 10baseT Ethernet port interface with full-speed filtering • 100 mW and 500 mW radio versions •...
Page 11: New Features
Introduction 1.1.1 New Features • IEEE 802.1d Spanning Tree Support • Auto-Fallback to Wireless Mode • Increased MIB support • DHCP Support • HTTP , Web server Support • Mobile IP Support • Programmable SNMP Trap Support using SNMP Agents •...
Page 12: S24 Network Topology
Introduction Spectrum24 devices, like other Ethernet devices, have unique, hardware- encoded Media Access Control (MAC) or IEEE addresses. MAC addresses determine the device sending or receiving data. The MAC address is a 48-bit number written as six hexadecimal bytes separated by colons. For example: 00:A0:F8:24:9A:C8 To locate the AP MAC address see the bottom of the unit.
Page 13 Introduction If the AP is not in wireless mode, select from the following topologies: • A single AP used without the wired network provides a single-cell wireless network for peer-to-peer MUs. • A single AP can bridge the Ethernet and radio networks. •...
Page 14 Introduction • Multiple APs wired together provide a network with better coverage area and performance. • Multiple 1 Mbps and 2 Mbps APs wired together. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 15 Introduction In WLAP mode, a wireless AP-to-AP connection functions: • as a bridge to connect two Ethernet networks • as a repeater to extend coverage area without additional network cabling Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 16: Quick Wireless Ap Setup
Introduction When using a wireless AP-to-AP connection, use the optimal antenna configuration for the site. For example, use a directional antenna when establishing a dedicated wireless bridge or repeater. • A wireless AP network is possible, depending on the network bandwidth and configuration.
Page 17: Cellular Coverage
Introduction 1.2.3 Cellular Coverage The AP establishes an average communication range with MUs called a Basic Service Set (BSS) or cell. When in a particular cell the MU associates and communicates with the AP of that cell. Each cell has a Basic Service Set Identifier (BSS_ID).
Page 18 Introduction The user can configure the Net_ID (ESS). A valid Net_ID (ESS) is an alphanumeric, case-sensitive identifier up to 32 characters. Ensure all nodes within one LAN use the same Net_ID (ESS) to communicate on the same LAN. Multiple wireless LANs can coexist in a single environment by assigning different Net_IDs (ESS) for APs.
Page 19: D Spanning Tree Support
Introduction In this configuration, the WLAP Priority value is the default 8000 Hex. On concatenating this value to the MAC addresses of the APs, AP A on Ethernet I has the lowest WLAP ID with 800000A0F800181A, making it the Root AP . AP C uses the AP A hop sequence, DTIM and TIM interval.
Page 20: Site Topography
Introduction 1.2.4 Site Topography For optimal performance, locate MUs and APs away from transformers, heavy-duty motors, fluorescent lights, microwave ovens, refrigerators and other industrial equipment. Signal loss can occur when metal, concrete, walls or floors block transmission. Locate antennas in open areas or add APs as needed to improve coverage.
Page 21: Mac Layer Bridging
Introduction 1.3.1 MAC Layer Bridging The AP listens to all packets on all interfaces and builds an address database using the unique IEEE 48-bit address (MAC address). An address in the database includes the interface media that the device uses to associates with the AP .
Page 22: Filtering And Access Control
Introduction Each AP stores information on destinations and their interfaces to facilitate forwarding. When a user sends an ARP (Address Resolution Protocol) request packet, the AP forwards it over all enabled interfaces (Ethernet, PPP , radio and WLAP) except over the interface the ARP request packet was received. On receiving the ARP response packet, the AP database keeps a record of the destination address along with the receiving interface.
Page 23: Auto Fallback To Wireless Mode
Introduction Depending on the setting, the AP can keep a list of frame types that it forwards or discards when they reach it. The Type Filtering option prevents specific frames (indicated by the 16-bit DIX Ethernet Type field) from being processed by the AP .
Page 24: Media Types
Introduction 1.3.4 Media Types The AP supports bridging between Ethernet, radio and serial media. The Ethernet interface fully complies with Ethernet Rev. 2 and IEEE 802.3 specifications. The AP supports 10Base-T wired connections and full-speed filtering. The data transfer rate over radio waves is 1 or 2 Mbps. This rate requires adjustment of AP application time-out values for data transfer between the Ethernet and radio interfaces.
Page 25: Bridging Support
Introduction 1.3.5 Bridging Support The AP PPP (Point to Point Protocol) interface, accessible from the serial port at the rear of the AP , provides two types of bridging operations: • Data-link bridging between two APs. A network using a data-link bridge provides radio coverage by using a remote AP in a location geographically distant from the AP connected to the Ethernet network.
Page 26 Introduction • Internet Protocol bridging between an AP and a computer. To establish an Internet Protocol bridge with an AP , ensure the computer includes the appropriate Telnet software with PPP and TCP/IP protocols. By using Telnet, a computer at a remote location can connect to any AP on an Ethernet network, as long as data transfers through IP packets.
Page 27 Introduction The PPP implementation in the AP uses the Link Control Protocol (LCP) and Network Control Protocol (NCP) as described in: • RFC 1171: the Point-to-Point Protocol, July 1990 • RFC 1220: PPP Extensions for Bridging, April 1991 • RFC 1332: The PPP Internet Protocol Control Protocol, May 1992 •...
Page 28: Ppp Connection
Introduction PPP Connection Connecting two APs with a direct serial link requires a null-modem serial cable. Connecting two APs with modem devices requires straight-through cables between the APs and modems. Using modems requires using a telephone line for as long as the link remains active. If using a modem connection, one AP represents the originating AP and the other represents the answering AP .
Page 29: Frequency Hopping Spread Spectrum
Introduction 1.3.6 Frequency Hopping Spread Spectrum The Spread spectrum technique (also known as broadband) takes a narrowband signal and spreads the data signal over a broad segment of the radio frequency band or spectrum. Spectrum24 uses the Frequency Hopping Spread Spectrum (FHSS) technology for radio communication. FHSS spreads the signal by transmitting a short burst on one frequency, jumping to another frequency for another short burst and so on.
Page 30 Introduction hop sequence to ensure communication. The time synchronization field included in message packets coordinates the hop timing of all units. The user can program the length each hop lasts. Each hop is a frequency at least 6 MHz away from the previous frequency and has a 1 MHz bandwidth. FHSS can survive in an adverse environment and coexist with other devices/ services in the same band.
Page 31: Mu Association Process
Introduction interference exists on a given frequency, it affects the radio network for only a short time on that specific frequency. Although APs can share the same hopping sequence, they usually do not synchronize in time. Rarely do they simultaneously arrive at the same frequency, referred to as contention. Interfering signals can reduce overall throughput at some frequencies.
Page 32 Introduction Where: reqd = required optl = optional NA = No Association Dynamic Rate Control= rate chosen for best transmission. MUs perform preemptive roaming by intermittently scanning for APs and associating with the best available AP . Before roaming and associating with APs, MUs perform full or partial scans to collect AP frequency-hopping statistics like: •...
Page 33 Introduction probe response from the AP , and updates the AP table. An unsuccessful AP packet transmission causes the MU to broadcast another probe on the same channel. The MU classifies an AP as out-of-range in the AP table if it fails to receive a probe response within the time limits.
Page 34: Mobile Ip (Roaming Across Routers)
Introduction 1.3.8 Mobile IP (Roaming Across Routers) The Internet Protocol identifies the MU point of attachment to a network through its IP address. The AP routes packets for the MU according to the location information contained in the IP header. If the MU roams across routers to another subnet, the following situations occur: •...
Page 35 Introduction A care-of-address is the IP address used by the MU visiting a foreign link. This address changes each time the MU moves to another foreign link. It can also be viewed as an exit point of a tunnel between the MUs home agent and the MU itself.
Page 36: Supporting Cam And Psp Stations
Introduction Security has become a concern to mobile users. Enabling the Mobile-Home MD5 key option in the System Configuration menu generates a 16-byte checksum authenticator using an MD5 algorithm. The MU and AP share the checksum, called a key, to authenticate transmitted messages between them. The AP and MU share the key while the MU is visiting a foreign subnet.
Page 37: Data Encryption
An authorized user can know the algorithm, but cannot interpret the encrypted data without the appropriate key. Only the sender and receiver of the transmitted data know the secret key. Symbol uses the Wired Equivalent Privacy (WEP) algorithm, specified in IEEE 802.11 section 8, for encryption and decryption.
Page 38: Http, Html Web Server Support
Introduction share an authentication key to perform a checksum on the original message. By default, IEEE 802.11 devices operate in an open system network where any wireless device can associate with an AP without authorization. A wireless device with a valid shared key is allowed to associate with the AP . Authentication management messages (packets) are unicast, meaning authentication messages transmit from one AP to one MU only, not broadcast or multicast.
Page 39: Management Options
Introduction 1.3.12 Management Options Managing Spectrum24 includes viewing network statistics and setting configuration options. Statistics track network activity of associated MUs and data transfers on the AP interfaces. Configuration involves setting system operating parameters and filters used in bridging. The AP requires one of the following to perform a custom installation or maintain the Spectrum24 network: •...
Page 40: Programmable Snmp Trap Support
HP Open View or Cabletron Spectrum MIB browser. The SNMP agent supports SNMP versions 1 and 2, MIB II, the 802.11 MIB and one Symbol proprietary Symbol MIB (Management Information Base). The SNMP agent supports read-write, read-only or disabled modes. The AP supports traps that return to the SNMP manager when certain events occur.
Page 41 SNMP Via a MIB Gain access to the AP SNMP function via a MIB Browser. Browser Typically a Network Manager uses this feature, Symbol does not recommend AP access using this interface method. Refer to the MIB Browser documentation for usage.
Page 42 Introduction Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 43: Chapter 2 Configuring The Ap
To access the AP from the workstation: 1. From the DOS prompt Telnet to the AP using its IP address: Telnet xxx.xxx.xxx.xxx 2. At the prompt enter the password: Symbol The password is case-sensitive. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 44: Using A Direct Serial Connection
Configuring the AP 3. Press the ESC key. The AP displays the Main Menu: Symbol Access Point MAIN MENU Show System Summary AP Installation Show Interface Statistics Special Functions Show Forwarding Counts Set System Configuration Show Mobile Units Set RF Configuration...
Page 45 Configuring the AP The factory-configured AP accepts a direct serial connection to the UI. Configure the AP for the following: • serial port. Enable • Set Port Use to • modem connection. Disable Configure these settings in the Set Serial Port Configuration screen within the See Configuring for Dial-Up to the UI on page 36.
Page 46: Using A Dial-Up Connection
Configuring the AP 2.1.3 Using a Dial-Up Connection The AP supports a dial-up connection to the UI. This requires accessing the UI from Telnet or a direct serial connection and changing the serial port configuration. Configure the AP for the following: •...
Page 47 Configuring the AP To enable help file access change the Help URL parameter: 1. Select the Special Functions screen. 2. Select the by pressing the e Alter Filename(s)/HELP URL/TFTP Server/DHCP key. 3. Press ENTER. 4. Use the DOWN ARROW key to select the option.
Page 48 Configuring the AP This installation process is for Windows NT 4.0. 1. From the desktop windows Task Bar select Start. 2. From the pulldown menu select Programs. 3. From this menu select Microsoft Internet Server. 4. From this menu select Internet Service Manger. 5.
Page 49 To access the help file from a local workstation the Help file needs to be loaded on the hard disk. To install the Help file run the InstallShield program. 1. From the floppy disk or Symbol Web site, http://www.symbol.com/ , click on the file UAPHTMLHelp_Install.exe Icon. 2. The...
Page 50 2. From the Start pulldown menu click Programs 3. From the Programs pulldown menu click Symbol Technologies or the directory name chosen during the install process. 4. Click UAP HTML Help to launch the help file program. To exit the Help file: 1.
Page 51 Configuring the AP 3. Type the AP IP address in the Address field of a Web browser such as Internet Explorer 4.0 and higher or Netscape. http://xxx.xxx.xxx.xxx The Main Page for the Spectrum24 Access Point Configuration Management System displays: The Web pages look different than the Telnet, Direct Serial or Dial-Up Connections.
Page 52 Configuring the AP 5. Enter the AP name. Symbol Access Point 6. Enter the password: Symbol The AP name and password are case-sensitive. To manually terminate the session, exit the browser. To view configuration, function, option changes on the Web page(s) turn off the caching function for the browser used.
Page 53: Navigating The Ui
Enter Admin Mode Set Event Logging Configuration The top line displays the System Name for the AP (default is Symbol Access Point) and the name of the configuration screen. The UI uses the following keystrokes to navigate through the menus and screens depending on the terminal emulation.
Page 54 Configuring the AP The following conventions also apply when navigating through screens and menus: • To select menu items, press the key corresponding to the bold letter for the item (case-sensitive hot key). Press ENTER to select the item. • Press TAB to scroll through menu items.
Page 55: Entering Admin Mode
Entering Admin mode requires the administration password. 1. Select Enter Admin Mode from the Main Menu. The AP prompts for the administration password: Enter System Password: 2. Enter the default password: Symbol The password is case sensitive. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 56: Changing The Access To The Ui
Configuring the AP – If the password is correct, the AP displays the Main Menu with the Enter Admin Mode menu item changed to Exit Admin Mode. – If the password is incorrect, the AP continues to display the Main Menu with the Enter Admin Mode menu item.
Page 57: Configuring For Dial-Up To The Ui
Configuring the AP 2.2.3 Configuring for Dial-Up to the UI A dial-up connection to gain access to the UI requires a straight-through cable between the modem and the AP . The remote PC requires a modem and a communication program (e.g. Microsoft Windows Terminal program). See Appendix B: Supported Modems for modems supported by the AP .
Page 58: Navigating The Ui Via A Web Browser
Configuring the AP Configuring the Dial-Up System Assuming the PPP , serial port and answer mode are enabled on the AP: 1. Attach the straight-through serial cable from the AP to the modem. 2. Verify modem connects to the telephone line and has power. Refer to modem documentation.
Page 59: Access Point Installation
Ethernet. To install an AP: 1. Enter Admin Mode. 2. Select AP Installation from the Main Menu to display: Symbol Access Point Access Point Installation Unit Name Symbol Access Point .Additional Gateways IP Address 157.235.96.52...
Page 60 Configuring the AP Subnet Mask The first two or three sets of numbers in the four sets of numbers making up the IP address of any device on a network represents the subnet mask values. The first two sets of numbers specify the network domain, the next set specifies the subset of hosts within a larger network and the final set specifies an individual computer.
Page 61: Configuring System Parameters
.Telnet Logins Disabled .System Password Symbol Ethernet Interface On PPP Interface .Agent Ad Interval RF Interface .S24 Mobile IP Disabled .Mobile-Home MD5 key Symbol Default Interface Ethernet .AP Auto Configure Disabled .Web Server Enabled OK-[CR] Save-[F1] Save ALL APs-[F2] Cancel-[ESC] Hopping Set (1-3) Save, then reset AP to take effect.
Page 62 Configuring the AP 2. Configure the AP system settings as required: Hopping Set The IEEE 802.11 standard requires three hop sets identified by the numerals 1 - 3. The U.S. for example, has 3 hop sets with 26 hopping patterns available for each hop set.
Page 63 The default value is Enabled. System Password For administrative access, select any alphanumeric, case-sensitive entry up to 13 characters for a password. The default System Password is Symbol. Agent Ad Interval Specifies the interval in seconds between the mobility agent advertisement transmission.
Page 64 Configuring the AP Mobile-Home Secret key used for Mobile-Home registration and MD5 key authentication. AP Auto If enabled, this feature allows APs to automatically Configure resolve hop sequence conflicts. Web Server Enables the use of a Web based browser to access the UI instead of the HyperTerminal or Telnet applications.
Page 65 Configuring the AP 3. To enable or disable interfaces on the AP , modify the following parameters: Ethernet Enables or disables wired Ethernet. The default value Interface is On. PPP Interface Enables or disables serial PPP . The default value is Off.
Page 66: Configuring Radio Parameters
&RQILJXULQJ 5DGLR 3DUDPHWHUV The AP auto configures most radio parameters, including the hop sequence. Only advanced users, Symbol trained users or Symbol representatives should configure radio parameters for the AP . Options in the RF Configuration screen fine-tune the radio and WLAP functions.
Page 67 Configuring the AP 2. Configure the settings as required: DTIM Interval DTIM packet frequency as a multiple of beacon packets. The DTIM Interval indicates how many beacons equal one cycle. Do not modify. BC/MC Q Max Determines the memory allocated for the queue used in the AP to temporarily hold broadcast/ multicast messages.
Page 68 Configuring the AP Multicast Mask (v) Supports broadcast download protocols for Point-of- Sale terminals that load a new operating image over the network instead of using a local nonvolatile drive. The multicast mask is the RF voice packets with the top 32 bits of the MAC address and allows for a series of MAC addresses to receive multicast messages.
Page 69 Configuring the AP Rate Control(Mb/s) Defines the data transmission rate: 1 reqd, 2 optl - allows the AP to automatically select the best transmit rate allowed by the conditions. All management and broadcast traffic is transmitted at 1 Mbps. This mode allows a mixtureof 1 Mbps and 2 Mbps radios in the same network.
Page 70 Configuring the AP 3. Verify the values set reflect the network environment. Change them as needed. 4. To register settings select to write changes to NVM. Selecting Save displays a confirmation prompt. Save 5. To save the RF Configuration information to all APs with the same Net_ID, select This option saves the configuration Save ALL APs-[F2].
Page 71: Wireless Operation Parameters
Symbol recommends the WLAPs with the lowest WLAP IDs be placed on the wired network. If an AP is bridging between wired LANs, Symbol recommends one LAN contain the lower WLAP IDs. Symbol does not recommend low WLAP IDs between wired networks, this can cause root association confusion between the APs.
Page 72 Configuring the AP WLAP Mode Specifies the APs wireless-AP operation status. Enabled, the AP sets up automatically for wireless operation. Disabled, the AP requires user setup for wireless operation. Default setting. Link Required, at power up the Root AP requires an Ethernet connection, the WLAP requires association with the Root AP .
Page 73 Configuring the AP WLAP Hello Time Sets the time lapse, in seconds, between Config BPDU packets sent to the Root AP by a designated WLAP . The default is 20 seconds. If the Root AP fails to hear from the designated WLAP within the WLAP Max Age time, it removes the designated WLAP from its interface table.
Page 74 Configuring the AP WEP Algorithm Specifies an Encryption algorithm of the AP . Open System Only: Encryption is not enabled. Shared Key Only: Encryption is enabled using a shared key between the AP and its associated MUs. Non-Encryption enabled MUs or MUs with a different key/key order cannot communicate with this option selected.
Page 75: Configuring Ppp
PPP Direct A direct null modem serial cable connection between two APs. From the UI: 1. Select Set Serial Port Configuration from the Main Menu to display: Symbol Access Point Serial Port Configuration Port Use Answer Wait Time Connect Mode...
Page 76: Establishing Connection
Configuring the AP 2.6.2 Establishing Connection To establish the PPP port connection on both APs: 1. Select Set System Configuration from the Main Menu. 2. Set the PPP Interface to 3. Use the SPACE BAR or LEFT/RIGHT-arrow keys to change and press ENTER to confirm.
Page 77: Answering Ap
Configuring the AP 7. Configure the other settings as required: Answer Wait Time Time in seconds waiting for a remote connection before dropping attempt. The default is from a -second range. Modem Speaker Sends a command to the modem to turn on or off the modem speaker.
Page 78: Initiating Modem Connection
SNMP . The AP sends specific traps for some conditions. Ensure the SNMP trap manager recognizes how to manage these traps. Refer to the Symbol MIB on the Wireless LAN Installation and Utilities disk for specific entries. The AP supports SNMP V1, MIB-II and the SYMBOL.MIB.
Page 79: Configuring The Ap
Configuring the AP 1. Select Set SNMP Configuration from the Main Menu to AP display: Symbol Access Point SNMP Configuration .SNMP Agent Mode Read/Write .Read-Only Community public .Read-Write Community Symbol .Trap IP Address 0.0.0.0 .All Traps Disabled Generic Traps: .Cold Boot Disabled .Authentication failure...
Page 80 Configuring the AP 2. Configure the settings as required: SNMP Agent defines the SNMP agent mode: Mode Disabled disables SNMP functions. Readonly allows get and trap operations. Read/Write (default) allows get, set and trap operations. Read-Only User-defined password string up to 31 characters Community identifying users with read-only privileges.
Page 81 Configuring the AP WLAP if enabled, this trap generates the following enterprise- Connection specific traps: Change • Root WLAP Up Indicates that the Root WLAP connection is setup and ready to forward data. • Root WLAP Lost If the current WLAP fails to receive a Beacon packet from its Root WLAP within one second, it considers the Root WLAP lost.
Page 82: Configuring The Acl
Configuring the AP 5. To save the SNMP Configuration information to all APs with the same Net_ID, select This option saves the configuration Save ALL APs-[F2]. changes for the current AP , and sends two WNMP messages to all other APs on the Known APs table to update their configuration and reset after the configuration has been modified.
Page 83 Configuring the AP 4. Press ENTER to accept the value; use the DOWN-ARROW key to select OK. 5. Press ENTER. The UI displays: Symbol Access Point Ranges of Allowed Mobile Units Min Address Max Address 00:A0:F8:F0:01:01 00:A0:F8:F0:02:FF 00:A0:F8:29:10:02 00:A0:F8:29:11:00 Delete-[F1]...
Page 84: Adding Allowed Mus
Configuring the AP 2.8.2 Adding Allowed MUs The Access Control List screen provides a facility to add MUs to the ACL. 1. Select the Set Access Control List option from the Main Menu to display: Address Type? range individual 2. Use the UP/DOWN-ARROW keys to toggle between range .
Page 85: Enable/Disable The Acl
Configuring the AP 2.8.4 Enable/Disable the ACL To switch between enable or disable locate the ACL in the System Configuration screen. 1. Select Set System Configuration from the Main Menu. 2. Press TAB to select Access Control 3. Press SPACE BAR to Enable 4.
Page 86: Configuring Address Filtering
The Disallowed Addresses provides security by preventing unauthorized access by known devices. Use it for preferred association of MUs to APs. • Select Set Address Filtering from the Main Menu to display: Symbol Access Point Disallowed Addresses 00:A0:F8:F0:00:0A 00:A0:F8:F0:48:01 00:A0:F8:F0:00:01...
Page 87: Adding Disallowed Mus
Configuring the AP 2.9.1 Adding Disallowed MUs The Disallowed Addresses screen provides a facility to add MUs to the list: 1. Select Add -[F2]. The AP prompts for a MAC address. 00:00:00:00:00:00 2. Enter the MAC address. Users can enter MAC addresses without colons. 2.9.2 Removing Disallowed MUs The Disallowed Addresses screen provides a facility to individually remove...
Page 88: Controlling Type Filters
Configuring the AP 2.10.3 Controlling Type Filters Set the type filters to forward or discard the types listed. To control the type filtering mode: 1. Select Set System Configuration from the Main Menu. 2. Select Type Filtering. 3. Press the SPACE BAR to toggle between the Forward, Discard type filtering and press to confirm the choice.
Page 89 Configuring the AP 1. Select Set Event Logging Configuration from the Main Menu to display: Symbol Access Point Event Logging Configuration .Any Event Logging Enabled .Security Violations Enabled .MU State Changes Enabled .WNMP Events Disabled .Serial Port Events Enabled .AP-AP Msgs Enabled .Telnet Logins...
Page 90: Manually Updating Ap Firmware
TCP for DOS or OnNet™ for Windows. The wireless TFTP upgrade method requires a connection between the AP and a TFTP server. The TFTP server can be running on a Symbol Spectrum24 device. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 91 PC hard disk. 2. Telnet to the AP using its IP address. 3. At the prompt enter the password: Symbol The password is case-sensitive. Set the System Password in the Set System Configuration screen. The AP displays the Main Menu.
Page 92 To view the file transfer log, switch to the TFTP application. The AP resets when the file transfer and flash programming completes. 13. Telnet to the AP using its IP address. 14. At the prompt enter the password: Symbol The password is case-sensitive. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 93: Updating Using Xmodem
Configuring the AP The AP displays the Main Menu. 15. Verify that the version number is correct on the System Summary screen. 16. Press CTRL+D to end Telnet session. 17. Repeat process for other APs in the network. 2.13.2 Updating using Xmodem The Xmodem upgrade method requires a direct connection between the AP and PC using a Null modem serial cable and using software like HyperTerminal for Windows 95 or Terminal mode for Windows 3.11.
Page 94 6. Select OK. 7. Press ENTER to display the Main Menu. 8. Select Enter Admin Mode and enter the password: Symbol The password is case-sensitive. 9. Enter the Special Functions screen. 10. Under the function heading Use XMODEM to Update Access Point’s,...
Page 95 Configuring the AP 12. At the confirmation prompt, press Y to display: Downloading firmware using XMODEM. Send firmware with XMODEM now ... Where UAP_FW.BIN or UAP_HTML.BIN are the firmware files. When using Xmodem, verify the file is correct before a send. An incorrect file can render the AP inoperable.
Page 96: Auto Upgrade All Aps Via Messaging
FTP PC/TCP for DOS or OnNet™ for Windows. The wireless TFTP upgrade method requires a connection between the AP and a TFTP server. The TFTP server can be running on a Symbol Spectrum24 device. Updating the firmware requires a TFTP server running in the background.
Page 97 Configuring the AP Change this only if the user or system/network administrator requires a new filename. The defaults are UAP_FW.BIN and UAP_HTML.BIN. uap_fw.bin or uap_html.bin Ensure the file name is UAP_FW.BIN or UAP_HTML.BIN unless the user changed the filename. Verify the path for the file name is accurate. (See step one) 7.
Page 98: Performing Pings
Configuring the AP 13. Telnet to the AP using its IP address. 14. At the prompt enter the password: Symbol The password is case-sensitive. The AP displays the Main Menu. 15. Verify that the version number is correct on the System Summary screen.
Page 99 Configuring the AP 1. Select the Show Mobile Units screen from the Main Menu to display: Symbol Access Point MAIN MENU Show System Summary AP Installation Show Interface Statistics Special Functions Show Forwarding Counts Set System Configuration Show Mobile Units...
Page 100 Configuring the AP 2. Select Regular from the Show Mobile Units screen to display: Symbol Access Point Mobile Units 00:A0:F8:29:C9:E2: C:R2:E 00:A0:F8:10:4B:AB: P:R2:V 00:a0:F8:10:4A:13: P:R1: 00:A0:F8:10:3C:85: C:R2: Symbol Access Point Mobile Units 00:A0:F8:29:C9:E2: C:R2:E 00:A0:F8:10:4B:AB: P:R2:V 00:a0:F8:10:4A:13: P:R1: 00:A0:F8:10:3C:85: C:R2:...
Page 101 Configuring the AP Press TAB to highlight the MAC address of the station to ping and select by pressing [F1] to display the Packet Ping Setup screen: Ping-[F1] Packet Ping Setup Station Address 00:A0:F8:10:4A:13 Number of Pings Packet Length Packet Data [Start-CR] [Cancel-ESC] Enter the MAC address of the station to ping...
Page 102: Mobile Ip Using Md5 Authentication
Configuring the AP 4. Select [Start-CR] to begin ping. The AP dynamically displays ping packets transmitted and received: Pinging Station... Station Address 00:A0:F8:10:4A:13 Pings Transmitted Pings Received Press any key to stop To abort the process, press any key. 2.16 Mobile IP Using MD5 Authentication Users can achieve true authentication by using the MD5 algorithm with a shared key configured into the AP and its MU.
Page 103: Saving The Configuration
• Press F1 in the configuration screens that display the option. Save 1. Select Special Functions from the Main Menu to display: Symbol Access Point Special Functions Menu Clear All Statistics Use TFTP to update Access Point’s: Clear MU Table...
Page 104: Resetting The Ap
Configuring the AP 2.18 Resetting the AP Resetting an AP clears statistics and restores the last saved configuration information. If users make unsaved changes, the AP clears those changes and restores the factory defaults on reset. • Select Special Functions from the Main Menu. •...
Page 105: Chapter 3 Monitoring Statistics
The Show System Summary screen displays information about the APs configuration. To view information about the AP configuration: 1. Select Show System Summary from the Main Menu to display: Symbol Access Point System Summary Unit Name Symbol Access Point MAC Address (BSS) 00:A0:F8:73:51:F2...
Page 106 Monitoring Statistics Information includes: Unit Name Identifies the AP name. Mac Address (BSS) Identifies the unique 48-bit, hard-coded Media Access Control address. IP Address Identifies the network-assigned Internet Protocol address. Net_ID (ESS) Identifies the unique 32-character, alphanumeric, case- sensitive network identifier. Hopping Set An industry standard requires three hop sets identified by the numerals 1 - 3.
Page 107 Monitoring Statistics Rate control defines the data transmission rate: 1 reqd, 2 optl - allows the AP to automatically select the best transmit rate allowed by the conditions. All management and broadcast traffic transmits at 1 Mbps. This mode allows a mixture of 1 Mbps and 2 Mbps radios in the same network.
Page 108: Interface Statistics
Monitoring Statistics Current MUs Specifies the current number of MUs associated with this AP . Total Assoc Specifies the total MU associations handled by this AP . System Up Time Specifies how long the system has been operational. System Up Time resets to zero after reaching a maximum 120 hours.
Page 109 Monitoring Statistics The AP interface indicates packets sent to the AP protocol stack (e.g. configuration requests, SNMP , Telnet). • Select Interface Statistics from the Main Menu to display: Symbol Access Point Interface Statistics -------------------- Interface Counts ----------------------- Packets Packets...
Page 110: Forwarding Counts
(Ethernet, PPP , radio, AP). Forwarding Counts also displays the broadcast packets (Bcast) transmitted from the AP . • Select Forwarding Counts from the Main Menu to display: Symbol Access Point Forwarding Counts - From - ------------ To -----------------...
Page 111 AP where to expect packets from for newly associated MUs. The AP Regular screen shows only the MUs associated locally on the same subnet. • Select Show Mobile Units from the Main Menu to display: Symbol Access Point MAIN MENU Show System Summary AP Installation...
Page 112 AP current Radio transmit rate for the messages sent to this MU: 1 for 1 Mbps, 2 for 2 Mbps. Encryption is enabled for this MU. Indicates a Symbol Voice enabled device. • To bring up the WNMP Packet Ping Function screen, press TAB to highlight the MU and select .
Page 113: Radio Interface
Monitoring Statistics • To bring up more detailed information on an MU, press TAB to highlight the MU and select to display: Information Symbol Access Point Information for MU: 00:A0:F8:29:C9:E2 Interface Packets Sent State Associated Packets Rcvd Power Mode Bytes Sent...
Page 114 Monitoring Statistics Station ID the IEEE 802.11 specification requires that each AP assign a station ID to all associated MUs, regardless of the MU power mode (PSP or CAM) Begin Current Assoc the time the current association begins in hours, minutes and seconds Supported Rates data transmission rates the station supports...
Page 115: Mobile Ip
The following tables display the mapping of MUs to mobility agents. Mobile IP (Roaming Across Routers) on page 23. • Select Home Agent from the Mobile Units prompt to display: Symbol Access Point Home Agent Table Mobile Unit Foreign Agent...
Page 116: Known Aps
The Save All APs function from the Special Functions Menu updates configures all APs firmware, HTML code shown in the Known APs menu. • Select Known APs from the Main Menu to display: Symbol Access Point Known Access Points Net_ID: MAC Address...
Page 117 Monitoring Statistics The AP displays for each known AP: MAC Address the unique 48-bit, hard-coded Media Access Control address, known as the devices station identifier IP Address the network-assigned Internet Protocol address An x after the IP address indicates the AP on this line is not using the 802.11 protocol.
Page 118: Ethernet Statistics
Ethernet Statistics The AP keeps Ethernet performance statistics including packet transmission and data retries until reset. The display also includes information used only by the Symbol Support Center. • Select Ethernet Statistics from the Main Menu to display: Symbol Access Point...
Page 119 Monitoring Statistics 1 + Collisions packets affected by more than one collision Maximum Collisions packets affected by the maximum number of collision Late Collisions collisions occurring after the first 64 bytes Defers the times the AP had to defer transmit requests on the Ethernet because of a busy medium –...
Page 120: Radio Statistics
The AP keeps radio performance statistics including packet and communication information. To view RF statistics: • Select Show RF Statistics from the Main Menu to display: Symbol Access Point RF Statistics Data Pkts Sent Data Pkts Rcvd Encrypted Pkts Sent...
Page 121 Monitoring Statistics Radio performance statistics include: Data Packets Sent total data packets transmitted Encrypted Pkts Sent total encrypted packets transmitted Data Bytes Sent total data packets transmitted in bytes BC/MC Packets Sent broadcast/multicast user data packets successfully transmitted BC/MC Bytes Sent broadcast/multicast user data bytes successfully transmitted Sys Packets Sent...
Page 122 Monitoring Statistics Succ Reass Packets packets successfully reassembled Unsucc Reass Packets packets unsuccessfully reassembled Fragments Rcvd packet fragments received Rcv Duplicate Pkts Duplicate packets received by the AP . This indicates the AP sent an ACK, but the MU did not receive it and transmitted the packet again.
Page 123 Monitoring Statistics • To display the WLAP RF Statistics screen select WLAP-[F3] Symbol Access Point WLAP RF Statistics Current # WLAP Itf Root Interface Current # INTLR Itf Root Priority 8000 hex Current State Functional Root MAC Addr 00:A0:F8:73:51:F2 Priority...
Page 124 Monitoring Statistics Where: Current # WLAP Itf refers to the current Wireless AP interfaces in use in a 1-4 range Current # INTLR Itf refers to the current International Roaming Access Bridge interfaces in use in a 1-10 range Current State on initialization, the AP can be in any of the following states of wireless operation: •...
Page 125 Monitoring Statistics Itf ID identifies the wireless interface the AP uses to communicate with another device WLAP Itf MAC Addr states the MAC address of the associated WLAP Itf State identifies the state of the interface from: • DIS - the interface is disabled •...
Page 126 • To display the International Roaming Access Bridge Interface Table select INTLR-[F3] This screen is for future applications in development. For more information, contact a Symbol Representative. Symbol Access Point ------- International Roaming Access Bridge Interface Table ------- INTLR Itf...
Page 127 Monitoring Statistics Itf ID identifies the wireless interface the AP uses to communicate with another device INTLR Itf MAC Addr states the MAC address of the associated International Roaming Access Bridge Itf State identifies the state of the interface from: •...
Page 128: Miscellaneous Statistics
The AP keeps statistics on WNMP and SNMP packets, filtering violations and serial port use. The Miscellaneous Statistics screen shows grouped statistics. • Select Show Misc Statistics from the Main Menu to display: Symbol Access Point Misc System Statistics WNMP Serial Port...
Page 129 Monitoring Statistics WNMP statistics are: Echoes echo requests received by the AP Pings ping requests received by the AP Passthrough echoes for MUs associated with the AP Echoes SNMP statistics are: Requests configuration requests received from the SNMP manager Traps AP messages sent to the SNMP manager Filter statistics are: ACL Violations...
Page 130: Analyzing Frequency Use
Monitoring Statistics 3.9.1 Analyzing Frequency Use The AP keeps statistics for individual frequencies (channels). These identify channels that have difficulty transmitting or receiving due to retries. To view statistics for individual frequencies: 1. Select Show Misc Statistics from the Main Menu. 2.
Page 131: Analyzing Retries
Monitoring Statistics 3.9.2 Analyzing Retries The AP keeps statistics of packets with multiple retries. Use these statistics to identify severe occurrences of retries. Retries occur when the transmitting station fails to receive an acknowledgment for a transmitted packet. This lack of acknowledgment can result from: •...
Page 132: Event History
The log is a 128-entry circular buffer. After the 128th entry, the earliest event entry deletes. • Select Show Event History from the Main Menu to display: Symbol Access Point Event History pg 1 Warning: Event logging is frozen while this screen is displayed.
Page 133: Clearing Statistics
Monitoring Statistics Symbol Access Point Event History pg 2 Warning: Event logging is frozen while this screen is displayed. 16:38:08 Received AP Info from 00:A0:F8:77:90:84 16:38:07 Received AP Info from 00:A0:F8:FA:CA:DE 16:38:06 Received AP Info from 00:A0:F8:16:4D:56 16:38:02 Received AP Info from 00:A0:F8:F0:63:58...
Page 134 Monitoring Statistics Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 135: Chapter 4 Hardware Installation
Check package contents for: • • power adapter • antenna If an item is missing or not functioning properly contact Symbol Support Center. Verify the AP model indicated on the bottom of the unit and packaging. Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 136: Requirements
The AP supports a 10Base-T unshielded twisted pair (UTP) standard. Users can order a null-modem cable, part number 61383-00-0, for direct serial connections by contacting a Symbol sales representative. Test and use the radio network with an MU. 4.3.1 Network Connection Locate connectors for Ethernet, antennas and power on the back of the AP .
Page 137: 10Base-T Utp
Hardware Installation The site survey determines the APs to install and their location. 4.3.2 10Base-T UTP Use a 10Base-T connection for multiple APs or an AP attached to a wired UTP Ethernet hub. Normal 10Base-T limitations apply. 1. Plug the data cable RJ-45 connector into the AP RJ-45 connector. 2.
Page 138: Attaching The Antenna(S)
Hardware Installation Attaching the Antenna(s) Antenna coverage resembles lighting in that an area lit from far away might not be bright enough. An area lit sharply minimizes coverage and creates dark areas where no light exists. Even antenna placement in an area (like an even placement of light bulbs) provides even, efficient coverage.
Page 139: Antenna Extension Cables
ML 2499-DVA1-00 mountable F-plane antenna ML 2499-PSA1-00 Symbol continues to add antenna options for Spectrum24 devices. Contact a Symbol sales representative for available antenna options. If installing two antennas, enable the Antenna Selection in the User Interface. See 2.3 Access Point Installation on page 37.
Page 140: Mounting The Ap
Users can obtain a universal wall-mounting bracket (ML-2499-APB1-00) and an AP-3020 adapter bracket (12-20436-01) from Symbol for attaching the AP and antennas to the wall or ceiling. Contact a Symbol sales representative to order. Choose one of the options based on environment...
Page 141: Led Indicators
Hardware Installation /(' ,QGLFDWRUV The top panel LED indicators provide a status display indicating transmission, error condition, and other activity. The indicators are: Status One flash per second indicates normal operation. A steady on or off, or irregular flashing indicates a fault condition. Serial Flashing indicates serial port activity.
Page 142: Wlap Mode Led Display
Hardware Installation 4.8.1 WLAP mode LED display. When in the WLAP mode this chart signifies the APs LED indicator status. For the IEEE 802.11 protocol and APs using firmware version 4.00-20 or above only. 1. After power up, system initialization begins: State Status Blinks...
Page 143 Hardware Installation 4. When the WLAP is in functional state, but one or more WLAP connections are not in Forward state: State Status blinks regularly Serial blinks if activity occurs Wired LAN Attached on if Ethernet cable attached Wired LAN Activity blinks if activity occurs Wireless LAN Attached blinks slowly...
Page 144: Troubleshooting
Wired LAN Activity blinks slowly Wireless LAN Attached Wireless LAN Activity Troubleshooting Check the following symptoms and their possible causes before contacting the Symbol Support Center. 4.9.1 Ensure wired network is operating. Verify AP operation: 1. AP does not power up: –...
Page 145 Hardware Installation Wireless LAN Attached Exit the AP manufacturing environment. Wired LAN Activity LAN adapter present. Wired LAN Attached Valid manufacturing configuration exists. Serial Valid runtime code exists. Status Blinks Bootup and runtime codes continuously downloaded to AP flash memory successful. Runtime code controls the AP .
Page 146: Setting Up Mus
Hardware Installation 6. Slow or erratic performance: – Check MU and RF communications range. – Check antenna, connectors and cabling. – Verify the AP is using the primary antenna connection for single antenna use. – Verify that antenna diversity setting for AP is appropriate. If using one antenna, the setting is , if using two antennas, the Primary Only...
Page 147: Appendix A Specifications
Appendix A Specifications A.1 Physical Characteristics Dimensions 1.25” H x 5.5” L x 7.75” W (3.18 cm H x 14.97 cm L x 19.69 cm W) Weight (w/power 1 lbs. (0.454 kg) supply) Operating -4º F to 131º F (-20º C to 55º C) Temperature Storage -40º...
Page 148: Radio Characteristics
A.2 Radio Characteristics Frequency Range country dependant; within 2400 MHz to 2500 MHz Frequency Hops 79 Standard Hopping 35 in France 27 in Spain 23 in Japan 20 in Belgium (outdoor) 29 in Mexico Hop Rate configurable Hop Sequences 78 (per IEEE 802.11 standard) Radio Data Rate 1 and 2 Mbps per channel Radio Power 100mW and 500mW versions...
Page 149: Network Characteristics
14,400 frames per second filtering and forwarding Rate Ethernet 10Base-T (RJ-45) Connection Serial PC/AT serial port - DB9 Female, RS-232 using a DTE termination, 19200 bps SNMP Version 1, MIB-II and Symbol MIB Spectrum24 Access Point AP-3020 Product Reference Guide A - 3...
Page 150 A - 4 Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 151: Appendix B Supported Modems
The AP uses Hayes commands and is capable of working with various modems of 19200 baud or faster. Symbol does not support modems the company has not qualified. The following modems qualify to work with the AP: •...
Page 152 B - 2 Spectrum24 Access Point AP-3020 Product Reference Guide...
Page 153: Appendix C Customer Support
Customer Support Symbol Technologies provides its customers with prompt and accurate customer support. Use the Symbol Support Center as the primary contact for any technical problem, question or support issue involving Symbol products. If the Symbol Customer Support specialists cannot solve a problem, access to all technical disciplines within Symbol becomes available for further assistance and support.
Page 154 • Symbol Technologies Technical Support 12 Oaklands Park Berkshire, RG41 2FD, United Kingdom Tel: 011-44-118-945-7000 or 1-516-738-2400 ext. 6213 Additional Information Obtain additional information by contacting Symbol at: • 1-800-722-6234, inside North America • +1-516-738-5200, in/outside North America • http://www.symbol.com/...
Page 155: Appendix D Regulatory Compliance
To comply with U.S. and international regulatory requirements, the following information has been included. The document applies to the complete line of Symbol products. Some of the labels shown, and statements applicable to other devices might not apply to all products.
Page 156 Radio Frequency Interference Requirements - Canada This Class A digital apparatus meets the requirements of the Canadian Interference-Causing Equipment Regulations. CE Marking & European Union Compliance Products intended for sale within the European Union are marked with the CEMark which indicates compliance to applicable Directives and European Normes (EN), as follows.
Page 157: United States
Symbol’s RF products are designed to be compliant with the rules and regulations in the locations into which they are sold and will be labeled as required. The majority of Symbol’s RF devices are type approved and do not require the user to obtain license or authorization before using the equipment.
Page 158 Canada If this product contains an internal modem it is compliant with CS-03 of Industry Canada and there will be a Canadian certification number (CANADA: ) on a label on the outside of the product. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements.
Page 159 Phone - 905 629 7226 Laser Devices Symbol products using lasers comply with US 21CFR1040.10, Subchapter J and IEC825/EN 60 825 (or IEC825-1/EN 60 825-1, depending on the date of manufacture). The laser classification is marked one of the labels on the product.
Page 160 D - 6 Spectrum24 Access Point AP-3020 Product Reference Guide...

Symbol Spectrum24 AP-3020 Reference Manual

Chapter 1 Introduction

Chapter 2 Configuring the AP

Chapter 3 Monitoring Statistics

Chapter 4 Hardware Installation

Appendix A Specifications

Appendix B Supported Modems

Appendix C Customer Support

Appendix D Regulatory Compliance

Quick Links

Access Point AP-3020

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Symbol Spectrum24 AP-3020

Summary of Contents for Symbol Spectrum24 AP-3020

Table of Contents