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1-2

C

HAPTER

1: I

NTRODUCTION

P

RODUCT

F

EATURES

Access Point 8760

—Creates an enterprise-class wireless LAN supporting up to

256 simultaneous users. The access point supports two radios and external
antennas including WDS bridging ability on both radios.

S

ECURITY

3Com offers one of the most robust suite of standards-based security on the
market today.

To protect sensitive data broadcast over the wireless LAN, 3Com supports WPA
and WPA2 security standards. 3Com strengthens this basic security mechanism
with additional security features, including:

MAC address access control lists

IEEE 802.1x per-port user authentication with RADIUS server support

IEEE 802.1x supplicant support

SSH v2

HTTP/HTTPS

SNMP v3

Legacy WEP 40/64 bit, 128 bit and 152 bit

Wireless Protected Access (WPA) and WPA2

Extensible Authentication Protocol (EAP) support: EAP-MD5, EAP-TLS,
EAP-TTLS, and PEAP

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Содержание 3CRWE876075 / WL-546

Страница 1: ...www 3Com com Part Number 10015153 Rev AA User Guide 3Com Wireless 8760 Dual radio 11a b g PoE Access Point 3CRWE876075 WL 546 Published June 2006...

Страница 2: ...opy will be provided to you UNITED STATES GOVERNMENT LEGEND If you are a United States government agency then this documentation and the software described herein are provided to you subject to the fo...

Страница 3: ...Point Installation Requirements 2 1 Power Requirements 2 2 Safety Information 2 2 Deciding Where to Place Equipment and Performing A Site Survey 2 3 Before You Begin 2 4 Connecting the Standard Anten...

Страница 4: ...tings 4 5 RADIUS 4 8 Authentication 4 9 Filter Control 4 14 VLAN 4 16 SNMP 4 18 Configuring SNMP and Trap Message Parameters 4 18 Configuring SNMPv3 Users 4 21 Administration 4 22 Changing the Passwor...

Страница 5: ...ommands 5 3 Keywords and Arguments 5 3 Minimum Abbreviation 5 3 Command Completion 5 3 Getting Help on Commands 5 3 Showing Commands 5 4 Partial Keyword Lookup 5 4 Negating the Effect of Commands 5 5...

Страница 6: ...6...

Страница 7: ...CSMA CA Carrier Sense Multiple Access with Collision Avoidance EAP Extensible Authentication Protocol which provides a generalized framework for several different authentication methods ESS Extended...

Страница 8: ...of hosts that are on physically different segments but that communicate as though they were on the same segment WEP Wired Equivalent Privacy is based on the use of security keys and the popular RC4 e...

Страница 9: ...e wireless network that provides users with seamless connectivity to the Internet company intranet and the wired corporate network from anywhere they happen to be conference room cafeteria or office 3...

Страница 10: ...he market today To protect sensitive data broadcast over the wireless LAN 3Com supports WPA and WPA2 security standards 3Com strengthens this basic security mechanism with additional security features...

Страница 11: ...le wireless services to clients in a network Each VAP can be configured to provide access to different network resources and can support different levels of security For example in a university networ...

Страница 12: ...hard to reach locations WIRELESS NETWORK STANDARDS Understanding the characteristics of the 802 11g and 802 11a standards can help you make the best choice for your wireless implementation plans 802...

Страница 13: ...multimedia over a wireless network that can benefit from a fivefold increase in data throughput Transferring large files like computer aided design files preprint publishing documents or graphics fil...

Страница 14: ...1 6 CHAPTER 1 INTRODUCTION...

Страница 15: ...nchors for drywall mounting If you do not have IEEE 802 3af power over Ethernet LAN equipment use the 3Com Integrated Power over Ethernet power supply that comes with the access point If your LAN equi...

Страница 16: ...nnecting the access point from power make sure the power outlet is accessible See Using the Power Supply on page 2 8 and Using a Power Over Ethernet LAN Port on page 2 8 SAFETY INFORMATION This equipm...

Страница 17: ...re with radio signals If you are connecting the access point to a wired network the location must provide an Ethernet connection You will need to run an Ethernet cable from the power supply to the acc...

Страница 18: ...lecting the final location and be sure to allow for routing the antenna cable as required For optimal performance ensure the access point operates in temperature ranges between 0 C to 50 C 14 F to 122...

Страница 19: ...detachable antennas 2 Screw an antenna into each of the sockets in the access point housing 3 Hand tighten the antennas at the very base of the RSMA connectors 4 Position the antennas so they turn out...

Страница 20: ...d check the Ethernet cables and LEDs before installing the unit in a hard to reach location The access point complies with the IEEE 802 3af power over Ethernet standard It receives power over a standa...

Страница 21: ...y your own Ethernet cable for connecting power be sure that it is standard category 5 straight through 8 wire cable that has not been altered in any way Use of nonstandard cable could damage the acces...

Страница 22: ...ble to the port labeled To Access Point on the power supply 3 Connect the power cord to the power supply and plug the cord into a power outlet 4 To link the access point to your Ethernet network plug...

Страница 23: ...actory default configuration is restored to the access point LED Color Indicates Power Green The access point is powered up and operating normally Off The access point is not receiving power or there...

Страница 24: ...the power cable if using an external power supply and Ethernet cable through the large opening on the back of the mounting bracket The figures below show a cable being routed through the large openin...

Страница 25: ...l Ceiling or Electrical Box Mounting Figure 4 Routing a Cable Figure 5 Mounting Bracket 4 Connect the Ethernet cable to the port on the back of the access point Routing a cable Installing the mounting...

Страница 26: ...tennas supplied with the Access Point are suitable for a broad variety of environments If you require a different type of antenna for the Access Point several options are available by model number fro...

Страница 27: ...or routing the antenna cable from the antenna to the access point 2 If they are installed remove both standard detachable antennas 3 Connect one end of the optional antenna cable to the antenna and se...

Страница 28: ...This tool can act in four different capacities As a TFTP Server necessary for firmware upgrades and backup and restore functions Use this option if you do not have a TFTP server set up As a SysLog Ser...

Страница 29: ...WITH A DHCP SERVER If your network has a DHCP server an IP address is automatically assigned to the AP It takes between one and two minutes for the Access Point to determine if there is a DHCP server...

Страница 30: ...utilities 3Com Wireless Infrastructure Device Manager an administration tool that helps you select 3Com wireless LAN devices and launch their configurations in your Web browser LAUNCH THE 3COM WIRELE...

Страница 31: ...3 3 Figure 8 Wireless Interface Device Manager Click on the Properties button to see the following screen Figure 9 Wireless Interface Device Manager Properties...

Страница 32: ...cess point uses Auto IP to assign an IP address of the form 169 254 2 1 Use the 3Com Wireless Infrastructure Device Manager to locate 3Com Wireless LAN devices and launch their configurations When ins...

Страница 33: ...in and password password then click LOGIN For information on configuring a user name and password see page 4 22 Figure 10 Login Page NOTE If you changed the default IP address via the command line int...

Страница 34: ...plays the Main Menu Figure 11 Home Page Launching the Setup Wizard To perform initial configuration click Setup Wizard on the home page select the VAP you wish to configure then click on the Next butt...

Страница 35: ...io Channel You must enable radio communications for 802 11a and 802 11b g and set the operating radio channel NOTE Available channel settings are limited by local regulations which determine the chann...

Страница 36: ...0 GHz when Auto Channel Select is not enabled Auto Channel Select Select Enable for automatic radio channel detection Default Enabled 802 11b g Turbo Mode If you select Enable the access point will op...

Страница 37: ...r host name to IP address resolution Figure 15 Setup Wizard Step 3 DHCP Client With DHCP Client enabled the IP address subnet mask and default gateway can be dynamically assigned to the access point b...

Страница 38: ...bled Shared Key Setup If you select Shared Key authentication enable WEP then configure the shared key by selecting 64 bit or 128 bit key type and entering a hexadecimal or ASCII string of the appropr...

Страница 39: ...3 11 Using the Setup Wizard 5 Click Finish 6 Click the OK button to complete the wizard Figure 17 Setup Wizard Completed...

Страница 40: ...3 12 CHAPTER 3 INITIAL CONFIGURATION...

Страница 41: ...ccess point installation the default WLAN Service Area ESSID is 3Com and no security is set Unless it detects a DHCP server on the network the access point uses Auto IP to assign an IP address of the...

Страница 42: ...s Table 2 Advanced Setup Menu Description Page System Configures basic administrative and client access 4 4 Identification Specifies the host name 4 4 TCP IP Settings Configures the IP address subnet...

Страница 43: ...ings for the basic system and the wireless interface 4 59 Station Status Shows the wireless clients currently associated with the access point 4 60 Event Logs Shows log messages stored in memory 4 61...

Страница 44: ...default setting However modifying this parameter can help you to more easily distinguish different devices in your network Figure 19 System Identification System Name An alias for the access point en...

Страница 45: ...structure Device Manager to discover or set the initial IP address of the unit WIDMAN will allow you to launch a web browser on the Access Point s web management interface by selecting the Access Poin...

Страница 46: ...net If you have management stations DNS RADIUS or other network servers located on another subnet type the IP address of the default gateway router in the text field provided Otherwise leave the addre...

Страница 47: ...AP when it cannot not reach a critical network element such as the RADIUS server VPN Terminator Mail Server etc Disable Enable Disables or enables a link check to a host device on the wired network T...

Страница 48: ...p should the primary server fail or become inaccessible In addition the configured RADIUS server can also act as a RADIUS Accounting server and receive user session accounting information from the acc...

Страница 49: ...ion with the primary server is re established the secondary server reverts to a backup role VLAN ID Format A VLAN ID a number between 1 and 4094 can be assigned to each client after successful authent...

Страница 50: ...val The access point can also operate in a 802 1X supplicant mode This enables the access point itself to be authenticated with a RADIUS server using a configured MD5 user name and password This preve...

Страница 51: ...rized to access the network This provides a basic level of authentication for wireless clients attempting to gain access to the network A database of authorized MAC addresses can be stored locally on...

Страница 52: ...s optionally supported or as required to enhance the security of the wireless network Default Disable Disable The access point does not support 802 1X authentication for any wireless client After succ...

Страница 53: ...and password This prevents rogue access points from gaining access to the network Local MAC Authentication Configures the local MAC authentication database The MAC database provides a mechanism to ta...

Страница 54: ...wireless communications between clients associated to Virtual AP VAP interfaces on the access point Default Prevent Inter and Intra VAP client Communication Disable All clients can communicate with ea...

Страница 55: ...filter table Default Disabled MAC Address Specifies a MAC address to filter in the form xx xx xx xx xx xx Permission Adds or deletes a MAC address from the filtering table Ethernet Type Filter Contro...

Страница 56: ...it is associated The access point only allows traffic tagged with assigned VLAN IDs or default VLAN IDs to access clients associated on each VAP interface When VLAN support is enabled on the access po...

Страница 57: ...ts or a string see radius server vlan format on page 5 69 Figure 25 Filter Control VLAN ID VLAN Enables or disables VLAN tagging support on the access point Management VLAN ID The VLAN ID that traffic...

Страница 58: ...at supports SNMP versions 1 2c and 3 clients This agent continuously monitors the status of the access point as well as the traffic passing to and from wireless clients A network management station ca...

Страница 59: ...d only access Authorized management stations are only able to retrieve MIB objects Maximum length 23 characters case sensitive Default public Community Name Read Write Defines the SNMP community acces...

Страница 60: ...g items are available sysSystemUp The access point is up and running sysSystemDown The access point is about to shutdown and reboot sysRadiusServerChanged The access point has changed from the primary...

Страница 61: ...e on the access point sntpServerFail The access point has failed to set the time from the configured SNTP server CONFIGURING SNMPV3 USERS The access point allows up to 10 SNMP v3 users to be configure...

Страница 62: ...ssword as soon as possible If the user name and password are not configured then anyone having access to the access point may be able to compromise access point and network security Once a new Adminis...

Страница 63: ...re replacement for Telnet The SSH protocol uses generated public keys to encrypt all data transfers passing between the access point and SSH enabled management station clients and ensures that data tr...

Страница 64: ...cal file on the management workstation or from an TFTP server New software may be provided periodically from your distributor After upgrading new software you must reboot the access point to implement...

Страница 65: ...he access point is connected to the network and has been configured with a compatible IP address and subnet mask If you need to download from an FTP or TFTP server take the following additional steps...

Страница 66: ...e following fields click Start Upgrade to proceed New firmware file Specifies the name of the code file on the server The firmware file must be named 3com img bin IP Address IP address or host name of...

Страница 67: ...wireless bridge network The Spanning Tree Protocol STP can be used to detect and disable network loops and to provide backup links between bridges This allows a wireless bridge to interact with other...

Страница 68: ...4 28 CHAPTER 4 SYSTEM CONFIGURATION Figure 32 WDS and Spanning Tree Settings...

Страница 69: ...oot bridge must be configured Up to five other Child links are available to other bridges Repeater Operates as a wireless repeater extending the range for remote wireless clients and connecting them t...

Страница 70: ...col STP uses a distributed algorithm to select a bridging device STP compliant switch bridge or router that serves as the root of the spanning tree network It selects a root port on each bridging devi...

Страница 71: ...isables STP on the wireless bridge or repeater Default Disabled Bridge Priority Used in selecting the root device root port and designated port The device with the highest priority becomes the STP roo...

Страница 72: ...ine the best path between devices Therefore lower values should be assigned to ports attached to faster media and higher values assigned to ports with slower media Path cost takes precedence over port...

Страница 73: ...le tool for isolating access point and network problems System Log Setup Enables the logging of error messages Default Disable Logging Level Sets the minimum severity level for event logging Default I...

Страница 74: ...chronization requests to specific time servers You can configure up to two time server IP addresses The access point will attempt to poll each server in the configured sequence SNTP Server Configures...

Страница 75: ...IEEE 802 11a and 802 11g interfaces include configuration options for radio signal characteristics and wireless security features The configuration options are nearly identical and are therefore both...

Страница 76: ...network service provided by each VAP Remember that only clients with the same SSID can associate with a VAP Configuring Radio Settings To configure VAP radio settings select the Radio Settings page Fi...

Страница 77: ...Default 1 Closed System When enabled the VAP interface does not include its SSID in beacon messages Nor does it respond to probe requests from clients that do not include a fixed SSID Default Disable...

Страница 78: ...ess point to radio channels and transmit power levels permitted for wireless networks in the specified country Description Adds a comment or description to the wireless interface Range 1 80 characters...

Страница 79: ...used by the access point to which it is linked Default Channel 60 for normal mode and channel 42 for Turbo mode Antenna ID Selects the antenna to be used by the access point either the included divers...

Страница 80: ...o devices in the service area Options 100 50 25 12 minimum Default 100 Maximum Transmit Data Rate The maximum data rate at which the access point transmits unicast packets on the wireless interface Th...

Страница 81: ...nsmission due to smaller frame size If there is significant interference present or collisions due to high network utilization try setting the fragment size to send smaller fragments This will speed u...

Страница 82: ...nable the radio service for any of the VAP interfaces and then set an SSID to identify the wireless network service provided by each VAP Remember that only clients with the same SSID can associate wit...

Страница 83: ...municate with the access point up to 54 Mbps Turbo Mode The normal 802 11g wireless operation mode provides connections up to 54 Mbps Turbo Mode is an enhanced proprietary mode Atheros 802 11g Turbo t...

Страница 84: ...The lower the data rate the longer the transmission distance Default 54 Mbps Preamble Length Sets the length of the signal preamble that is used at the start of a data transmission Default Long Short...

Страница 85: ...s a protocol that access points can use to communicate the configured traffic priority levels to QoS enabled wireless clients Table 4 WMM Access Categories WMM Operation WMM uses traffic priority base...

Страница 86: ...m of a minimum wait time Arbitration Inter Frame Space or AIFS determined from the AIFSN and a random backoff time calculated from a value selected from zero to the CW The CW value varies within a con...

Страница 87: ...point Devices that do not support this feature will not be allowed to associate with the access point WMM Acknowledge Policy By default all wireless data transmissions require the sender to wait for...

Страница 88: ...t be greater or equal to the CWMin value AIFS Arbitration Inter Frame Space The minimum amount of wait time before the next data transmission attempt Specify the AIFS value in the range 0 15 microseco...

Страница 89: ...ual access point VAP interface MAC address filtering and RADIUS server settings are global and apply to all VAP interfaces The security mechanisms that may be employed depend on the level of security...

Страница 90: ...k card driver native support provided in Windows XP Provides the strongest security in WPA2 only mode Provides robust security in mixed mode for WPA and WPA2 clients Offers fast roaming for time sensi...

Страница 91: ...or Disabled Yes Dynamic WEP and 802 1x WPA Authentication WPA Encryption Enable WPA Configuration Supported Cipher Suite WEP 802 1x Required Set 802 1x key refresh and reauthentication rates Local or...

Страница 92: ...uthentication and data encryption Also be sure that the WEP shared keys are the same for each client in the wireless network 802 1x WPA WPA2 Mixed Mode Authentication WPA WPA2 mixed Encryption Enable...

Страница 93: ...that accepts network access attempts from any client or with clients using pre configured static shared keys Default Open System Open System If you don t set up any other security mechanism on the ac...

Страница 94: ...as the multicast encryption cipher You should select WEP only when both WPA and WEP clients are supported Figure 41 WPA Key Management WPA Key Management Specifies the type of WPA encryption to use WP...

Страница 95: ...update the client keys Default Key 1 Figure 42 WEP Keys Client Types Specifies the type of client to encrypt WEP and WPA clients Both WEP and TKIP encryption are supported WPA clients only All clients...

Страница 96: ...hentication Protocol EAP WPA employs 802 1X as its basic framework for user authentication and dynamic key management The 802 1X client and RADIUS server should use an appropriate EAP type such as EAP...

Страница 97: ...ignal WPA compatible clients can likewise respond to indicate their WPA support This enables the access point to determine which clients are using WPA security and which are using legacy WEP The acces...

Страница 98: ...Association that the access point names and holds in a cache Preauthentication Each time a client roams to another access point it has to be fully re authenticated This authentication process is time...

Страница 99: ...c system configuration settings System Up Time Length of time the management agent has been up MAC Address The physical layer address for the Ethernet port System Name Name assigned to this system Sys...

Страница 100: ...nterface Radio Channel The radio channel through which the access point communicates with wireless clients Radio Encryption The key size used for data encryption Radio Auth Type Shows the type of auth...

Страница 101: ...d to the appropriate access point Forwarding Allowed Shows if the station has passed 802 1X authentication and is now allowed to forward traffic to the access point Key Type Displays one of the follow...

Страница 102: ...et to Open Authentication but a client sent an authentication request frame with a Shared key Access point was set to Shared Key Authentication but a client sent an authentication frame for Open Syste...

Страница 103: ...ION To access the access point through the console port perform these steps 1 At the console prompt enter the user name and password The default user name is admin and the default password is password...

Страница 104: ...ide your office or to the Internet you need to apply for a registered IP address However if you are attached to an isolated network then you can use any IP address that matches the network segment to...

Страница 105: ...xample to set a password for the administrator enter Enterprise AP config username smith Minimum Abbreviation The CLI will accept a minimum number of characters that uniquely identify a command For ex...

Страница 106: ...nagement Show management AP information authentication Show Authentication parameters bootfile Show bootfile name bridge Show bridge config System snapshot for tech support dhcp relay Show DHCP Relay...

Страница 107: ...sses Exec commands generally display information on system status or clear statistical counters Configuration commands on the other hand modify interface parameters or enable certain functions These c...

Страница 108: ...bal Configuration mode enter the command configure in Exec mode The system prompt will change to Enterprise AP config which gives you access privilege to all Global Configuration commands To enter Int...

Страница 109: ...one word Delete key or backspace key Erases a mistake when entering a command Command Group Description Page General Basic commands for entering configuration mode restarting the system or quitting t...

Страница 110: ...he Ethernet interface 5 97 Wireless Interface Configures radio interface settings 5 103 Wireless Security Configures radio interface security and encryption settings 5 125 Rogue AP Detection Configure...

Страница 111: ...d returns to the previous configuration mode Default Setting None Command Mode Global Configuration Interface Configuration Example This example shows how to return to the Configuration mode from the...

Страница 112: ...ntax ping host_name ip_address host_name Alias of the host ip_address IP address of the host Default Setting None Command Mode Exec Command Usage Use the ping command to see if another site on the net...

Страница 113: ...system or restores the factory default settings Syntax reset board configuration board Reboots the system configuration Resets the configuration settings to the factory defaults and then reboots the s...

Страница 114: ...commands in the history buffer Example In this example the show history command lists the contents of the command history buffer show line This command displays the console port s configuration settin...

Страница 115: ...18 ip telnet server enable Enables the Telnet server IC E 5 18 APmgmtIP Specifies an IP address or range of addresses allowed access to the management interface GC 5 23 APmgmtUI Enables or disables SN...

Страница 116: ...EE Liechtenstein LI Singapore SG Australia AU Finland FI Lithuania LT Slovak Republic SK Austria AT France FR Macao MO Spain ES Azerbaijan AZ Georgia GE Macedonia MK Sweden SE Bahrain BH Germany DE Ma...

Страница 117: ...mple prompt This command customizes the CLI prompt Use the no form to restore the default prompt Syntax prompt string no prompt string Any alphanumeric string to use for the CLI prompt Maximum length...

Страница 118: ...stem name Syntax system name name no system name name The name of this host Maximum length 32 characters Default Setting Enterprise AP Command Mode Global Configuration Example username This command c...

Страница 119: ...rd Syntax password password no password password Password for management access Length 3 16 characters case sensitive Default Setting null Command Mode Global Configuration Example ip ssh server enabl...

Страница 120: ...his command sets the Secure Shell server port Use the no form to disable the server Syntax ip ssh server port port number port number The UDP port used by the SSH server Range 1 65535 Default Setting...

Страница 121: ...The TCP port to be used by the browser interface Range 1024 65535 Default Setting 80 Command Mode Global Configuration Example Related Commands ip http server 5 19 ip http server This command allows...

Страница 122: ...Range 80 1024 65535 Default Setting 443 Command Mode Global Configuration Command Usage You cannot configure the HTTP and HTTPS servers to use the same port To avoid using common reserved TCP port nu...

Страница 123: ...e can be enabled independently If you enable HTTPS you must indicate this in the URL https device port_number When you start HTTPS the connection is established in this way The client authenticates th...

Страница 124: ...to an access point login web page as soon as Internet access is attempted The client is then authenticated by entering a user name and password on the web page This process allows controlled access fo...

Страница 125: ...the access point from an invalid address the unit will reject the connection enter an event message in the system log and send a trap message to the trap manager IP address can be configured for SNMP...

Страница 126: ...fies Telnet management access Web Specifies web based management access enable disable Enables or disables the selected management access method Default Setting All enabled Command Mode Global Configu...

Страница 127: ...he IP addresses of management stations allowed to access the access point as well as the interface protocols which are open to management access Command Mode Exec Example Enterprise AP show apmanageme...

Страница 128: ...stem Contact System Country Code US UNITED STATES MAC Address 00 30 F1 F0 9A 9C IP Address 192 254 2 1 Subnet Mask 255 255 255 0 Default Gateway 0 0 0 0 VLAN State DISABLED Management VLAN ID AP 1 IAP...

Страница 129: ...show version Version Information Version v4 3 2 2 Date Dec 20 2005 18 38 12 Enterprise AP Enterprise AP show config Authentication Information MAC Authentication Server DISABLED MAC Auth Session Timeo...

Страница 130: ...255 255 255 0 Default Gateway 192 254 0 1 Primary DNS 210 200 211 225 Secondary DNS 210 200 211 193 Speed duplex 100Base TX Full Duplex Admin status Up Operational status Up Wireless Interface 802 11a...

Страница 131: ...ogue AP Detection Disabled Rogue AP Scan Interval 720 minutes Rogue AP Scan Duration 350 milliseconds Console Line Information databits 8 parity none speed 9600 stop bits 1 Logging Information Syslog...

Страница 132: ...4 0 0 0 0 Community State Disabled dot11InterfaceAGFail Enabled dot11InterfaceBFail Enabled dot11StationAssociation Enabled dot11StationAuthentication Enabled dot11StationReAssociation Enabled dot11St...

Страница 133: ...02 11g Channel Stations System Information Serial Number System Up time 0 days 0 hours 16 minutes 51 seconds System Name Enterprise Wireless AP System Location System Contact Contact System Country Co...

Страница 134: ...ardware Version Information Hardware version R01 Enterprise AP Command Function Mode Page logging on Controls logging of error messages GC 5 33 logging host Adds a syslog server host IP address that w...

Страница 135: ...the type of error messages that are stored in memory Example logging host This command specifies syslog servers host that will receive logging messages Use the no form to remove syslog server host Sy...

Страница 136: ...no logging console Default Setting Disabled Command Mode Global Configuration Example logging level This command sets the minimum severity level for event logging Syntax logging level Emergency Alert...

Страница 137: ...t in syslog messages See RFC 3164 This type has no effect on the kind of messages reported by the access point However it may be used by the syslog server to sort messages or to store messages in the...

Страница 138: ...gging Command Mode Exec Example Enterprise AP config logging facility 19 Enterprise AP config Enterprise AP config logging clear Enterprise AP config Enterprise AP show logging Logging Information Sys...

Страница 139: ...task Set SSH server port to 22 Mar 09 11 55 52 Information SSH task Enable SSH server Mar 09 11 55 52 Information Enable Telnet Mar 09 11 55 40 Information 802 11a 11a Radio Interface Disabled Mar 09...

Страница 140: ...ge When SNTP client mode is enabled using the sntp server enable command the sntp server ip command specifies the time servers from which the access point polls for time updates The access point will...

Страница 141: ...t bootup i e 00 14 00 January 1 1970 Example Related Commands sntp server ip 5 38 show sntp 5 41 sntp server date time This command sets the system clock Default Setting 00 14 00 January 1 1970 Comman...

Страница 142: ...clock back one hour during the specified period Example This sets daylight savings time to be used from July 1st to September 1st sntp server timezone This command sets the time zone for the access p...

Страница 143: ...cate the number of hours and minutes your time zone is east before or west after of UTC Example show sntp This command displays the current time and configuration settings for the SNTP client Command...

Страница 144: ...This command enables the access point s DHCP relay agent Use the no form to disable the agent Syntax no dhcp relay enable Default Setting Disabled Command Mode Global Configuration Command Usage For t...

Страница 145: ...erver ip_address IP address of the server Default Setting Primary and secondary 0 0 0 0 Command Mode Global Configuration Example show dhcp relay This command displays the current DHCP relay configura...

Страница 146: ...P notifications GC 5 48 snmp server engine id Sets the engine ID for SNMP v3 GC 5 50 snmp server user Sets the name of the SNMP v3 user GC 5 51 snmp server targets Configures SNMP v3 notification targ...

Страница 147: ...d management stations are able to both retrieve and modify MIB objects Default Setting public Read only access Authorized management stations are only able to retrieve MIB objects private Read write a...

Страница 148: ...he no form to remove the location string Syntax snmp server location text no snmp server location text String that describes the system location Maximum length 255 characters Default Setting None Comm...

Страница 149: ...failure notifications and link up down notifications The snmp server host command specifies the host device that will receive SNMP notifications Example Related Commands snmp server host 5 47 snmp se...

Страница 150: ...nd to enable SNMP notifications Example Related Commands snmp server enable server 5 47 snmp server trap This command enables the access point to send specific SNMP traps i e notifications Use the no...

Страница 151: ...on has roamed from another access point identified by its IP address iappStationRoamedTo A client station has roamed to another access point identified by its IP address localMacAddrAuthFail A client...

Страница 152: ...Syntax snmp server engine id engine id no snmp server engine id engine id Enter engine id in hexadecimal 5 32 characters Default Setting Enabled Command Mode Global Configuration Command Usage This co...

Страница 153: ...three pre defined groups Other groups cannot be defined The available groups are RO A read only group using no authentication and no data encryption Users in this group use no security either authenti...

Страница 154: ...e database An AuthPriv user must be assigned to the RWPriv group with the AuthPriv security level To configure a user for the RWAuth group you must include the auth proto and auth passphrase keywords...

Страница 155: ...ified in the target must first be configured using the snmp server user command Example snmp server filter This command configures SNMP v3 notification filters Use the no form to delete an SNMP v3 fil...

Страница 156: ...card For example a mask value of 0xFFBF provides a bit mask 1111 1111 1011 1111 If applied to the subtree 1 3 6 1 2 1 2 2 1 1 23 the zero corresponds to the 10th subtree ID When there are more subtre...

Страница 157: ...pre defined groups Syntax show snmp groups Command Mode Exec Enterprise AP config snmp server filter assignments mytraps trapfilter Enterprise AP config exit Enterprise AP show snmp target Host ID myt...

Страница 158: ...v3 user group assignments Syntax show snmp group assignments Command Mode Exec Enterprise AP show snmp groups GroupName RO SecurityModel USM SecurityLevel NoAuthNoPriv GroupName RWAuth SecurityModel U...

Страница 159: ...ys the SNMP v3 notification filter settings Syntax show snmp filter filter id filter id A user defined name that identifies an SNMP v3 notification filter Maximum length 32 characters Command Mode Exe...

Страница 160: ...filter assignments Syntax show snmp filter assignments Command Mode Exec Example Enterprise AP show snmp filter Filter trapfilter Type include Subtree iso 3 6 1 2 1 2 2 1 Type exclude Subtree iso 3 6...

Страница 161: ...ity State Disabled dot11InterfaceAGFail Enabled dot11InterfaceBFail Enabled dot11StationAssociation Enabled dot11StationAuthentication Enabled dot11StationReAssociation Enabled dot11StationRequestFail...

Страница 162: ...ould not be a period and the maximum length for file names is 32 characters Valid characters A Z a z 0 9 _ If the file contains an error it cannot be set as the default file Example Command Function M...

Страница 163: ...ord that allows you to copy to from a flash memory file config Keyword that allows you to upload the configuration file from flash memory Default Setting None Command Mode Exec Command Usage The syste...

Страница 164: ...ame syscfg TFTP Server IP 192 254 2 19 Enterprise AP Enterprise AP copy tftp file 1 Application image 2 Config file 3 Boot block image Select the type of download 1 2 3 1 2 TFTP Source file name syscf...

Страница 165: ...hown below Example The following example shows how to display all file information Enterprise AP delete test cfg Are you sure you wish to delete this file y n Enterprise AP Column Heading Description...

Страница 166: ...Table 19 RADIUS Client Enterprise AP show bootfile Bootfile Information Bootfile ec img bin Enterprise AP Command Function Mode Page radius server address Specifies the RADIUS server GC 5 65 radius se...

Страница 167: ...ration Example radius server port This command sets the RADIUS server network port Syntax radius server secondary port port_number secondary Secondary server port_number RADIUS server UDP port used fo...

Страница 168: ...bal Configuration Example radius server retransmit This command sets the number of retries Syntax radius server secondary retransmit number_of_retries secondary Secondary server number_of_retries Numb...

Страница 169: ...ets the RADIUS Accounting server network port Syntax radius server secondary port accounting port_number secondary Secondary server If secondary is not specified then the access point assumes you are...

Страница 170: ...updates after every interim period until the user logs off and a stop message is sent Example radius server radius mac format This command sets the format for specifying MAC addresses on the RADIUS s...

Страница 171: ...ormat hex ascii hex Enter VLAN IDs as a hexadecimal number ascii Enter VLAN IDs as an ASCII string Default Setting Hex Command Mode Global Configuration Example show radius This command displays the c...

Страница 172: ...se AP show radius Radius Server Information IP 0 0 0 0 Port 1812 Key Retransmit 3 Timeout 5 Radius MAC format no delimiter Radius VLAN format HEX Radius Secondary Server Information IP 0 0 0 0 Port 18...

Страница 173: ...11 association each client is allowed to access the network When 802 1X is supported the access point supports 802 1X authentication only for clients initiating the 802 1X authentication process i e t...

Страница 174: ...he access point rotates broadcast keys Range 0 1440 minutes Default Setting 0 Disabled Command Mode Global Configuration Command Usage The access point uses Enterprise APOL Extensible Authentication P...

Страница 175: ...mmand Usage Session keys are unique to each client and are used to authenticate a client connection and correlate traffic passing between a specific client and the access point Example 802 1x session...

Страница 176: ...enabled Example 802 1x supplicant user This command sets the user name and password used for authentication of the access point when operating as a 802 1X supplicant Use the no form to clear the supp...

Страница 177: ...and Mode Exec Example Enterprise AP config 802 1x supplicant user AP8760 dot1xpass Enterprise AP config Enterprise AP show authentication Authentication Information MAC Authentication Server DISABLED...

Страница 178: ...ddresses entered as denied in the address filtering table are denied denied Only MAC addresses entered as allowed in the address filtering table are allowed Default allowed Command Mode Global Configu...

Страница 179: ...B 89 allowed Entry is allowed access denied Entry is denied access Default None Command Mode Global Configuration Command Mode The access point supports up to 1024 MAC addresses An entry in the addres...

Страница 180: ...ress filtering to be performed with local or remote options Use the no form to disable MAC address authentication Syntax mac authentication server local remote local Authenticate the MAC address of wi...

Страница 181: ...used to filter communications between wireless clients control access to the management interface from wireless clients and filter traffic using specific Ethernet protocol types Table 22 Filtering Co...

Страница 182: ...ith a specific VAP interface cannot establish wireless communications with each other Clients can communicate with clients associated to other VAP interfaces Default Disabled Command Mode Global Confi...

Страница 183: ...iltering of MAC addresses from the Ethernet port Syntax no filter uplink enable Default Disabled Command Mode Global Configuration Example filter uplink This command adds or deletes MAC addresses from...

Страница 184: ...e this feature Syntax no filter ethernet type enable Default Disabled Command Mode Global Configuration Command Usage This command is used in conjunction with the filter ethernet type protocol command...

Страница 185: ...ARP Novell IPX old Novell IPX new EAPOL Telxon TXP Aironet DDP Enet Config Test IP IPv6 NetBEUI PPPoE_Discovery PPPoE_PPP_Session Default None Command Mode Global Configuration Command Usage Use the...

Страница 186: ...56 78 9a Enabled Protocol Filters No protocol filters are enabled Enterprise AP Command Function Mode Page bridge role Selects the bridge operation mode for a radio interface IC W 5 85 bridge link par...

Страница 187: ...e bridge role is set to repeater the Parent link to the root bridge must be configured see bridge link parent on page 5 86 When the access point is operating in this mode traffic is not forwarded to t...

Страница 188: ...of the parent bridge that is linked to the root bridge or the root bridge itself Example bridge link child This command configures the MAC addresses of child bridge nodes Syntax bridge link child inde...

Страница 189: ...ds The time to age out an address entry Range 10 10000 seconds Default Setting 300 seconds Command Mode Global Configuration Command Usage If the MAC address of an entry in the address table is not se...

Страница 190: ...5 COMMAND LINE INTERFACE show bridge aging time This command displays the current WDS forwarding table aging time setting Command Mode Exec Example Enterprise AP show bridge aging time Aging time 300...

Страница 191: ...00 00 00 0 5 4095 300 300 Static 01 80 c2 00 00 03 0 5 4095 300 300 Static 00 30 f1 f0 9b 20 1 0 1 300 300 Static 00 30 f1 f0 9b 21 1 0 1 300 300 Static 00 30 f1 f0 9b 22 1 0 1 300 300 Static 00 30 f...

Страница 192: ...ifies a wireless interface a The 802 11a radio interface g The 802 11g radio interface index The index number of a bridge link Range 1 6 Command Mode Exec Example Enterprise AP show bridge link wirele...

Страница 193: ...Enabled state Forwarding priority 0 path cost 19 message age Timer Inactive message age 4346 designated root priority 32768 MAC 00 30 F1 F0 9A 9C designated cost 0 designated bridge priority 32768 MAC...

Страница 194: ...is command to configure the spanning tree bridge forward time globally for the wireless bridge Use the no form to restore the default Syntax bridge stp forwarding delay seconds no bridge stp forwardin...

Страница 195: ...ate otherwise temporary data loops might result Example bridge stp hello time Use this command to configure the spanning tree bridge hello time globally for the wireless bridge Use the no form to rest...

Страница 196: ...n wait without receiving a configuration message before attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that...

Страница 197: ...bridge link path cost index cost index Specifies the bridge link number on the wireless bridge Range 1 6 required on wireless interface only cost The path cost for the port Range 1 65535 Default Setti...

Страница 198: ...the use of a port in the Spanning Tree Protocol If the path cost for all ports on a wireless bridge are the same the port with the highest priority that is lowest value will be configured as an activ...

Страница 199: ...bridge Maximum Age 20 Seconds bridge Forward Delay 15 Seconds time since top change 89185 Seconds topology change count 0 Enterprise AP Command Function Mode Page interface ethernet Enters Ethernet in...

Страница 200: ...ver server address dns secondary server server address primary server Primary server used for name resolution secondary server Secondary server used for name resolution server address IP address of do...

Страница 201: ...efault To manually configure a new IP address you must first disable the DHCP client with the no ip dhcp command You must assign an IP address to this device to gain management access over the network...

Страница 202: ...g the ip address command or direct the device to obtain an address from a DHCP server using this command When you use this command the access point will begin broadcasting DHCP client requests The cur...

Страница 203: ...Mbps full duplex operation Default Setting Auto negotiation is enabled by default Command Mode Interface Configuration Ethernet Command Usage If autonegotiation is disabled the speed and duplex mode...

Страница 204: ...port show interface ethernet This command displays the status for the Ethernet interface Syntax show interface ethernet Default Setting Ethernet interface Command Mode Exec Example Enterprise AP if e...

Страница 205: ...the 802 11g radio IC W b g 5 109 preamble Sets the length of the 802 11g signal preamble IC W b g 5 110 antenna control Selects the antenna control method to use for the radio IC W 5 111 antenna id Se...

Страница 206: ...the maximum number of clients that can be associated with the access point at the same time IC W VAP 5 119 assoc timeout interval Configures the idle time interval when no frames are sent after which...

Страница 207: ...s speed allowed for wireless clients Options for 802 11a 6 9 12 18 24 36 48 54 Mbps Options for 802 11b g 1 2 5 5 6 9 11 12 18 24 36 48 54 Mbps Default Setting 54 Mbps Command Mode Interface Configura...

Страница 208: ...tions up to 54 Mbps Turbo Mode is an enhanced mode not regulated in IEEE 802 11a that provides a higher data rate of up to 108 Mbps Enabling Turbo Mode allows the access point to provide connections u...

Страница 209: ...con packets on the wireless interface Syntax multicast data rate speed speed Maximum transmit speed allowed for multicast data Options for 802 11a 6 12 24 Mbps Options for 802 11b g 1 2 5 5 11 Mbps De...

Страница 210: ...nterface Configuration Wireless Command Usage The available channel settings are limited by local regulations which determine the number of channels that are available When multiple access points are...

Страница 211: ...ible Power selection is not just a trade off between coverage area and maximum supported clients You also have to ensure that high strength signals do not interfere with the operation of other radio d...

Страница 212: ...ets the length of the signal preamble that is used at the start of a 802 11b g data transmission Syntax preamble long short or long long Sets the preamble to long 192 microseconds short or long Sets t...

Страница 213: ...nt LEDs The access point does not support an external antenna connection on its left antenna Therefore this method is not valid for the access point right The radio only uses the antenna on the right...

Страница 214: ...Usage The optional external antennas if any that are certified for use with the access point are listed by typing antenna control id Selecting the correct antenna ID ensures that the access point s ra...

Страница 215: ...configures the rate at which beacon signals are transmitted from the access point Syntax beacon interval interval interval The rate for transmitting beacon signals Range 20 1000 milliseconds Default...

Страница 216: ...This parameter is necessary to wake up stations that are using Power Save mode The DTIM is the interval between two synchronous frames with broadcast multicast information The default value of 2 indi...

Страница 217: ...uccessful transmission due to smaller frame size If there is significant interference present or collisions due to high network utilization try setting the fragment size to send smaller fragments This...

Страница 218: ...RTS frame the station sends a CTS frame to notify the sending station that it can start sending data Access points contending for the wireless medium may not be aware of each other The RTS CTS mechani...

Страница 219: ...dynamic turbo Maximum throughput ranges between 40 to 60 Mbps for connections to Atheros compatible clients Example description This command adds a description to a the wireless interface Use the no...

Страница 220: ...ce Configuration Wireless VAP Command Usage Clients that want to connect to the wireless network via an access point must set their SSIDs to the same as that of the access point Example closed system...

Страница 221: ...the same time Syntax max association count count Maximum number of associated stations Range 0 64 Default Setting 64 Command Mode Interface Configuration Wireless VAP Example assoc timeout interval T...

Страница 222: ...nutes before re authentication Range 5 60 Default Setting 60 Command Mode Interface Configuration Wireless VAP Example shutdown This command disables the wireless interface Use the no form to restart...

Страница 223: ...4 5 6 or 7 Example show interface wireless This command displays the status for the wireless interface Syntax show interface wireless a g vap id a 802 11a radio interface g 802 11g radio interface va...

Страница 224: ...0 03 7f fe 03 02 802 11 Parameters Radio Mode b g mixed mode Protection Method CTS only Transmit Power FULL 16 dBm Max Station Data Rate 54Mbps Multicast Data Rate 5 5Mbps Fragmentation Threshold 2346...

Страница 225: ...Key Refresh Rate 30 min 802 1x Session Timeout Value 0 min Antenna Antenna Control method Diversity Antenna ID 0x0000 Default Antenna Antenna Location Indoor Quality of Service WMM Mode SUPPORTED WMM...

Страница 226: ...Admission Control No TXOP Limit 0 000 ms AC1 Background logCwMin 4 logCwMax 10 AIFSN 7 Admission Control No TXOP Limit 0 000 ms AC2 Video logCwMin 3 logCwMax 4 AIFSN 1 Admission Control No TXOP Limit...

Страница 227: ...s may mistakenly associate to a rogue AP and be prevented from accessing network resources Rogue APs may also cause radio interference and degrade the wireless LAN performance Enterprise AP show stati...

Страница 228: ...nsive scanning is required to find a rogue AP A rogue AP is either an access point that is not authorized to participate in the wireless network or an access point that does not have the correct secur...

Страница 229: ...cess point to discover rogue APs With authentication enabled and a configure RADIUS server the access point checks the MAC address Basic Service Set Identifier BSSID of each access point that it finds...

Страница 230: ...and new clients may not be able to associate to the access point If clients experience severe disruption reduce the scan duration time A long scan duration time will detect more access points in the...

Страница 231: ...ult Setting Disabled Command Mode Interface Configuration Wireless Command Usage While the access point scans a channel for rogue APs wireless clients will not be able to connect to the access point T...

Страница 232: ...WLAN1AP 9 2452 MHz 42 ESS 0 0 00 90 d1 08 9d a7 WLAN1AP 1 2412 MHz 12 ESS 0 0 00 30 f1 fb 31 f4 WLAN 6 2437 MHz 16 ESS 0 0 Enterprise AP Command Function Mode Page auth Defines the 802 11 authenticati...

Страница 233: ...2 Clients using WPA2 are accepted for authentication wpa2 psk Clients using WPA2 with a Pre shared Key are accepted for authentication wpa wpa2 mixed Clients using WPA or WPA2 are accepted for authent...

Страница 234: ...802 1X client software A RADIUS server must also be configured and be available in the wired network If a WPA WPA2 Pre shared Key mode is selected WPA PSK WPA2 PSK or WPA WPA2 PSK mixed the key must f...

Страница 235: ...ivalent Privacy WEP is implemented in this device to prevent unauthorized access to your wireless network For more secure data transmissions enable encryption with this command and set at least one st...

Страница 236: ...keys use 16 alphanumeric characters or 32 hexadecimal digits Default Setting None Command Mode Interface Configuration Wireless Command Usage To enable Wired Equivalent Privacy WEP use the auth shared...

Страница 237: ...sed for decryption of data from clients When using IEEE 802 1X the access point uses a dynamic key to encrypt unicast and broadcast messages to 802 1X enabled clients However because the access point...

Страница 238: ...If any clients supported by the access point are not WPA enabled the cipher suite algorithm must be set to WEP WEP is the first generation security protocol used to encrypt data crossing the wireless...

Страница 239: ...compliant hardware Example mic_mode This command specifies how to calculate the Message Integrity Check MIC Syntax mic_mode hardware software hardware Uses hardware to calculate the MIC software Uses...

Страница 240: ...t format value The key string For ASCII input specify a string between 8 and 63 characters For HEX input specify exactly 64 digits Command Mode Interface Configuration Wireless VAP Command Usage To su...

Страница 241: ...ter Key PMK that is used to generate other keys for unicast data encryption This key and other client information form a Security Association that the access point names and holds in a cache The lifet...

Страница 242: ...s to be fully authenticated When the client is about to roam to another access point in the network the access point sends pre authentication messages to the new access point that include the client s...

Страница 243: ...Syntax no link integrity ping detect Default Setting Disabled Command Mode Global Configuration Command Usage When link integrity is enabled the IP address of a host device in the wired network must b...

Страница 244: ...s no link integrity ping host host_name Alias of the host ip_address IP address of the host Default Setting None Command Mode Global Configuration Example link integrity ping interval This command con...

Страница 245: ...nfiguration Example link integrity ethernet detect This command enables an integrity check to determine whether or not the access point is connected to the wired Ethernet Syntax no link integrity ethe...

Страница 246: ...app This command enables the protocol signaling required to hand over wireless clients roaming between different 802 11f compliant access points Use the no form to disable 802 11f signaling Syntax no...

Страница 247: ...he user VLAN IDs must be configured on the RADIUS server for each user authorized to access the network If a user does not have a configured VLAN ID the access point assigns the user to its own config...

Страница 248: ...onfigured for a client on the RADIUS server then the frames are tagged with the access point s native VLAN ID Traffic entering the Ethernet port must be tagged with a VLAN ID that matches the access p...

Страница 249: ...Range 1 4094 Default Setting 1 Command Mode Interface Configuration Wireless VAP Command Usage To implement the default VLAN ID setting for VAP interface the access point must enable VLAN support usin...

Страница 250: ...below Table 31 WMM Commands wmm This command sets the WMM operational mode on the access point Use the no form to disable WMM Syntax no wmm supported required supported WMM will be used for any assoc...

Страница 251: ...t and background These categories correspond to traffic priority levels and are mapped to IEEE 802 1D priority tags The direct mapping of the four ACs to 802 1D priorities is specifically intended to...

Страница 252: ...ximum log value of the contention window This is the maximum upper limit of the random backoff wait time before wireless medium access can be attempted The contention window is doubled after each dete...

Страница 253: ...2 LogCwMax 10 10 4 3 AIFS 3 7 2 2 TXOP Limit 0 0 94 47 Admission Control Disabled Disabled Disabled Disabled BSS Parameters WMM Parameters AC0 Best Effort AC1 Background AC2 Video AC3 Voice LogCwMin...

Страница 254: ...5 152 CHAPTER 5 COMMAND LINE INTERFACE...

Страница 255: ...subnet as the wired LAN If necessary reset the access point to the factory defaults Try the solutions in the following table If you need further assistance contact 3Com Technical Support through the...

Страница 256: ...hich mobile users can roam are configured to the same WEP setting SSID and authentication settings Slow or erratic performance Try changing the wireless channel on the access point Check the access po...

Страница 257: ...rvice area to match If you change the IP address and save the change you cannot continue to configure the access point using the old IP address Therefore if you want to continue configuring this acces...

Страница 258: ...6 4 CHAPTER 6 TROUBLESHOOTING...

Страница 259: ...onfiguring 5 45 community string 4 20 5 45 configuration settings saving or restoring 5 61 configuration initial setup 3 1 connecting power 2 2 2 6 country code configuring 5 14 CTS 4 41 5 116 D devic...

Страница 260: ...allation 2 3 log messages 4 34 4 61 5 33 server 4 33 5 33 login CLI 5 1 web 3 5 logon authentication RADIUS client 4 13 5 64 M MAC address recording 2 4 MAC address authentication 4 11 5 76 5 77 maxim...

Страница 261: ...les setting 5 60 station status 4 60 5 125 status displaying device status 4 59 5 26 displaying station status 4 60 5 125 system clock setting 4 34 5 39 system log enabling 4 33 5 33 server 4 33 5 33...

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