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Theory of Operation 25
Changing one AP does not affect the configuration of other APs on the network. Make configuration changes to APs individually. Each AP requires an individual IP address.
Programmable SNMP Trap Support
The SNMP protocol defines the method for obtaining information about networks operating characteristics and changing router and gateway parameters. The SNMP protocol consists of three elements:
■Management stations
■Management information
■Management protocol (MIB)
Nodes can perform as hosts, routers, bridges or other devices that can communicate status information. An SNMP Agent is a node that runs the SNMP management process to systematically monitor and manage the network. The management station performs network management by running application management software.
An SNMP trap is an alert to all configured management stations of some significant event that occurred on the network. The management station queries all stations for details of each specific event, including what, when and where the event took place and the current status of the node or network. The format or structure is defined in the SNMP protocol. The MIB defines what and who monitors the variables.
Using SNMP
The AP includes SNMP agent versions accessible through an SNMP manager application (HP Open View or Cabletron Spectrum MIB browser). The SNMP agent supports SNMP versions 1 and 2, MIB II, 802.11 MIB and one proprietary 3Com Management Information Base (MIB). 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. The Wireless LAN Installation and Utilities disk packaged with wireless clients contains the MIB.
Increased MIB Support
The MIB defines what the management station needs to understand and which objects the station manages. The MIB has ten categories defined with approximately 175 variables.
Contents
Version
AirConnect 11 Mbps Wireless LAN Access Point User Guide
Bayfront Plaza Santa
3Com Corporation
Clara, California
95052-8145
Contents
Installing Access Point Hardware
Monitoring Wireless Clients
Access Point Installation Configuring the AP
Access Point Specifications Technical Support
Page
Introduction
Overview of Digital Wireless Networking
AirConnect Network
Topologies
Overview of Digital Wireless Networking
AirConnect Network Topologies
Wireless clients
AirConnect Access
Point
To the Ethernet LAN
AirConnect Access Point
Wireless clients and APs
PowerBASE-T
Radio Basics
Results in the original digital data
Radio Basics
802.1d Spanning Tree Support
Wireless LAN Service Area
Site Surveys
Filtering and Access Control
Network Control Protocol NCP as described
PPP Connection
Data Rate Requirement
Overview of Digital Wireless Networking
Theory of Operation
Simple Network Management Protocol Snmp
Programmable Snmp Trap Support
Using Snmp
Management protocol MIB
Increased MIB Support
Method Description
Using the User Interface
Precautions
Installing Access Point Hardware
Package Contents
Requirements
Standard power supply 115/230VAC, 50/60Hz, 24V/14
Power Options
Remote power distribution system, Part Number AP-PS-11
US line cord Part Number
Below
Mounting the AP
Wall Mount To mount an AP on a wall
Ceiling Mount To mount an AP on a ceiling
Mounting the AP
PowerBASE-T
Using
PowerBASE-T can be used to power the AP
Off Blinking Power No power Power on During boot sequence
LED Indicators
Condition, and other activity
3Com Support Center
Troubleshooting
Verify AP Operation
Electrical Management System EMS operating outlet
Network connection verification
Verify Network Wiring Topology
Page
System Properties
Monitoring Statistics
Interface Statistics
Forwarding Counts
Radio Frequency
Ethernet Statistics
Statistics
Statistics window, select Main Menu→Misc Statistics
Miscellaneous
Press Esc or Previous F4 to exit
Type Name Definition
Known APs
Clearing Statistics
Select Clear All Statistics
Gaining access to the User Interface UI
Gaining Access to the User Interface UI Using a Web Browser
Help File Access
Setup Network Web Server Help File Access
Select Virtual Directory
Accessing the Web Browser UI
Select Close/Exit
Select System Configuration
Select Save F1 to save the configuration
Select Special Functions Select Reset AP
Type the case sensitive AP name
Under Configuration, select Security Select System Password
Select Easy Setup--Easy Setup Click Add/Delete Gateways
Select Easy Setup--Easy Setup
Parameter Description
Adding or Deleting a Range of Allowed Wireless Clients
Adding Allowed Wireless Clients
Adding or Deleting Disallowed Wireless Clients
Considerations
For the Short RF Preamble setting, click Disabled
Enabling or Disabling Encryption
Select Configuration--Security
Interface Description Default Condition
Enable or disable interfaces on the AP
Frequency No. of Channels Country
Enter the Multicast Mask data and voice values
Snmp Trap Description Default Value
Select Enabled or Disable All for All Snmp Traps
Configuring the Originating Modem
Filtering to Forward Packets
Configuring the Answering Modem
Filtering to Discard Packets
Click Delete Filter
Removing Filtered Packet Types Networking Protocols
Disabling Type Filtering
Under Configuration, select Firmware
Special Function Description
Active. Clear the wireless client association table for
Wireless Clients
Monitoring Wireless Clients
Select Regular at the Wireless Clients prompt
Indicates a 3Com voice-enabled device
Latest version. Refer to Manually Updating AP Firmware on
Ascii Interface
Versions
Configure the AP for the following
Enable serial port
Arrow/Function Key Control Character
Prompt Description
To exit from submenus, press Esc
Press Tab to select System Password
Select Telnet Logins
To enable and configure the serial port connection on the AP
Configuring The Serial Port
Configuring the Dial-Up System
Setting Description
Hanging Up
Select Modem Hangup
Window
Installation
Configuring the AP
That can associate with this AP. The default is Disabled
Wsaid
Establishing a Connection
PPP Direct
PPP with Modems
Originating AP
Set the Connect Mode to Answer
Answering AP
From the answering APs UI
For automatic dial-out, reset the AP
Press up/down arrows to toggle between range and individual
Range of Wireless Clients
Enable/Disable the ACL
Removing Allowed Wireless Clients
Removing All Allowed Wireless Clients
Adding Disallowed Wireless Clients
Load ACL from Wireless Client List
Removing Disallowed Wireless Clients
Address Filtering
Setting Logging
Clearing Wireless
Clients from the AP
Options
AP Firmware
Manually Updating
Previous version of AP firmware
Select Alter Filenames/HELP URL/TFTP and press Enter
Remainder of this procedure uses Windows 98 as an example
Type the firmware file name in the Download Filename field
Select Transfer from the emulation program menu bar
Open the Special Functions window
Select Send File
Select Alter Filenames/HELP URL/TFTP Server and press Enter
Download is complete when the UI displays
Authentication
Using MD5
Performing Pings
Extended Roaming
Encryption
Wireless client and the access point
Hex-digit sequence
Restoring Configurations
Press the Tab key to highlight .Short RF Preamble Enabled
Select Restore Factory Configuration
Physical Characteristics
Access Point Specifications
Radio Characteristics Frequency No. of Channels Country
Output Characteristics
Network Characteristics
Technical Support
Services
Online Technical
World Wide Web Site
North America
Latin America
To obtain an RMA number, call or fax
Page
Ascii
Index
Snmp agent
3Com AirConnect Access Point
3Com Corporation Limited Warranty
Obtaining Warranty
Radio Frequency Interference Requirements Canada
Regulatory Compliance Information
3Com End User Software License Agreement
Important Read Before Using This Product