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Wireless LAN (WLAN)

A wireless LAN does not use cable to transmit signals, but rather uses radio or
infrared to transmit packets through the air. Radio Frequency (RF) and infrared are
the commonly used types of wireless transmission. Most wireless LANs use spread
spectrum technology. It offers limited bandwidth, usually under 11Mbps, and users
share the bandwidth with other devices in the spectrum; however, users can operate
a spread spectrum device without licensing from the Federal Communications
Commission (FCC)

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Содержание WP-2001B

Страница 1: ...User s Guide IEEE 802 11b WLAN Bridge Access Point Version 2 0...

Страница 2: ...Installation 7 3 1 Installing the SNMP Manager application 8 3 2 Setting the IP Address 12 3 3 Using the SNMP Manager 14 4 Technical Specifications 40 Troubleshooting 41 Glossary 42 Product names men...

Страница 3: ...accordance with the instruction may cause harmful interference to radio communication However there is no grantee that interference will not occur in a particular installation If this equipment dose c...

Страница 4: ...vice complies with Part 15 of FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference that may cause...

Страница 5: ...e maintaining seamless uninterrupted access to the network This document describes the steps required for the initial IP address assign and AP configuration The description includes the implementation...

Страница 6: ...reless network The most obvious differentiation between Infrastructure wireless network and Ad Hoc wireless network is that the notebooks in Infrastructure wireless network can make use of the resourc...

Страница 7: ...There are two methods of assigning network addresses to computer on a TCP IP network Static IP addressing Dynamic IP addressing DHCP In networks with static IP addressing the network administrator ma...

Страница 8: ...the given documentation CD and then double click the MY Computer icon on your desktop In my computer window double click the CD Drive icon Choose WLAN Access Point folder and double click Setup exe t...

Страница 9: ...9 Step 2 Software License Agreement click Yes to accept Step 3 Click Next to install to this folder...

Страница 10: ...the type of setup you prefer then click Next Step 5 Setup will add program icons to the Program Folder listed below You may type a new folder name or select one from the Existing Folders list Click N...

Страница 11: ...11 Step 6 Starting Set up Step 7 Click Finish to complete Setup...

Страница 12: ...t way to accomplish is to connect the Access Point and the Ethernet station to the same hub You need to check if the station IP address and the Sub net mask are configured properly Also the new IP add...

Страница 13: ...Prompt window and type ping followed by the IP address used in the IP Config The IP address is assigned to the Access Point The Access Point s replies to the ping confirm that the IP address was assi...

Страница 14: ...14 3 3 Using the SNMP Manager On the Start Menu choose Start Programs SNMP Manager...

Страница 15: ...he appropriate password The default password is public Additionally you have to select the User or Administrator Authority in the Authority combo box User Authority allow you only to view and not to s...

Страница 16: ...Access Points available for connection Select one of the available Access Points and press Connect then appears indicating the IP Address of the selected Access Point and prompting you to select Auth...

Страница 17: ...Close Connection AP Terminates the connection with the Access Point You can find and associate with another access point by selecting the Find Access Point after close the connection Download changes...

Страница 18: ...18 Options Defines the polling interval according to which the SNMP Manager polls the Access Point in order to update the statistics and the Associated Stations List...

Страница 19: ...ld displays IP Address that was dynamically assigned to the AP by the network DHCP server and the IP Mask field displays IP Mask utilized by the network DHCP server Additional you have to select the P...

Страница 20: ...20 Filtering If the IP Routing is enabled only the IP protocol packets will pass through the WLAN and any other protocol filtered out...

Страница 21: ...yption for transmissions between the stations and the Access Point WEP is an authentication algorithm which protects authorized Wireless LAN users against eavesdropping For the 64 bit encryption each...

Страница 22: ...22 There are four 13 Hex digit encryption keys available if you select 128 bit WEP Or you can select Disable...

Страница 23: ...ions and Access Point in the extended WLAN Select the ESSID to be used Channel There are 14 channels available The channels differ from country to country Select the channel to be used Fragmentation t...

Страница 24: ...eld of PPDU which is the appropriate frame format for transmission to PHY Physical layer There are two options Short Preamble and Long Preamble The Short Preamble option improves throughput performanc...

Страница 25: ...25...

Страница 26: ...This mode provides two way access between wireless stations and wired LANs Wireless stations within the range of the Access Point device may communicate with each other via the Access Point Figure 3...

Страница 27: ...is way any station of the Remote LAN can successfully communicate with any station of the central LAN as if all of them belonged to the same physical LAN Wireless Stations cannot communicate directly...

Страница 28: ...onnections a Point to point The Wireless Bridge can communicate with a specific Remote MAC Address The user must define the Remote MAC Address which is the MAC Address of the Wireless Bridge of the Re...

Страница 29: ...abled the Wireless Bridge can communicate with any Wireless Bridge whose MAC Addresses exists in the Authorization Table Figure 3 4 Wireless Bridge Point to Multipoint For each mode you can either vie...

Страница 30: ...you select the Access Point Client option BSS corresponds to the MAC Address of the desired AP Remote MAC address It is enabled only if you select Point to Point It corresponds to the MAC Address of...

Страница 31: ...nder the Authorized MAC Address option you may press the following buttons The Load file button in order to load a file with the MAC addresses that can be associated with the Access Point Authorized M...

Страница 32: ...he reception of an association request packet and the sender Station s successful association with the Wireless Bridge Trap Disassociation This trap message is sent when a disassociation notification...

Страница 33: ...33 Authorization Using this submenu the Administrator can change the passwords which referred to the community field for the User and the Administrator Authority...

Страница 34: ...are two submenus Reset Device you can reset the Access Point This action takes place after a user makes configuration changes in order to initiate the changes Restore Default You can restore the fact...

Страница 35: ...ics is given in the following Unicast Transmitted Packets The number of unicast packets successfully transmitted Broadcast transmitted packets The number of broadcast packets transmitted Multicast tra...

Страница 36: ...following Received Packets Total Bytes The number of bytes in the frames that were received Total Packs Total number of received packets Packet CRC Errors The number of packets with CRC Errors Transmi...

Страница 37: ...37 Traps menu Provides information for trap messages View Record You can see additional information for every Trap Message...

Страница 38: ...menu Associated stations Using this submenu you can view the MAC Addresses of the Associated stations with the Access Point Window menu Under this menu there are the following submenus Cascade All ope...

Страница 39: ...39 Help menu Provides on line help about the application...

Страница 40: ...72 GHz Europe 2 457 2 462 GHz Spain 2 457 2 472 GHz France Modulation 1 Mbps DBPSK 2 Mbps DQPSK 5 5 Mbps CCK 11 Mbps CCK Ethernet Interface 10 100Base T RJ 45 Power AC 100 240V 50 60 Hz to 5VDC 1A con...

Страница 41: ...with a default IP address 192 168 0 1 If this address does not belong to the SubNetwork of the configuring terminal then you would execute IPConfig exe from attached CD to modify it The MAC address c...

Страница 42: ...ic IP Addressing and requires a dedicated DHCP server on the network Direct Sequence Spread Spectrum This is the method the wireless cards use to transmit data over the frequency spectrum The other me...

Страница 43: ...particular is being made available worldwide This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe Local Area Netw...

Страница 44: ...as a management information block Static IP Addressing A method of assigning IP addresses to clients on the network In networks with Static IP address the network administrator manually assigns an IP...

Страница 45: ...uency RF and infrared are the commonly used types of wireless transmission Most wireless LANs use spread spectrum technology It offers limited bandwidth usually under 11Mbps and users share the bandwi...

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