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LANCOM OAP

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54 Wireless and LANCOM OAP

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310agn Wireless

Chapter 7: Options and accessories

84

EN

7 Options and accessories

Your LANCOM device has numerous extensibilities and the possibility to use a
broad choice of LANCOM accessories. You find in this chapter information
about the available accessories and how to use them with your base station.

The range of the base station can be increased by optional antennas of
the AirLancer series and can be adapted to special conditions of environs.

With the LANCOM Public Spot Option option it is possible to extend the
LANCOM for additional billing and accounting functions in order to
upgrade it to a Wireless Public Spot.

7.1

Optional AirLancer Extender antennas

AirLancer Extender antennas are capable of extending the operating range of
the devices, or of adapting access point coverage to local conditions. An over-
view of the supported antennas is available from the LANCOM Web site under

You will also find further information on calculating the best configu-
ration for AirLancer Extender antennas and third-party antennas that
you wish to connect to the LANCOM under

www.lancom.eu

.



When assembling separately purchased mobile radio antennas please
note that the maximum allowed transmission power of the wireless
LAN according to EIRP in the country in question may not be excee-
ded. The system operator is responsible for adhering to the threshold
values.



For internal lightning protection, the surge adapter AirLancer
Extender SA-5L is

always necessary

—the AirLancer Extender SA-5L

is mounted between the Access Point and the antenna, as close to the
antenna as is possible.



Antennas are only to be attached or changed when the device is swit-
ched off. Mounting or demounting antennas while the device swit-
ched on may cause the destruction of the WLAN module!

7.1.1

Antenna diversity

Only LANCOM OAP-
54 Wireless

The transmission of radio signals can suffer from significant signal losses
because of reflection and scatter, among other reasons. In some areas, the

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Содержание OAP-310agn

Страница 1: ...Internet www lancom eu LANCOM OAP 54 Wireless LANCOM OAP 310agn Wireless LANCOM OAP 54 Wireless LANCOM OAP 310agn Wireless Handbuch Manual c o n n e c t i n g y o u r b u s i n e s s 110754_LC OAP 45...

Страница 2: ...LANCOM OAP 54 Wireless LANCOM OAP 310agn Wireless...

Страница 3: ...rademarks of Microsoft Corp The LANCOM Systems logo LCOS and the name LANCOM are registered trademarks of LANCOM Systems GmbH All other names or descriptions used may be trademarks or registered trade...

Страница 4: ...odules and hence can work in both frequency ranges simultaneously The LANCOM OAP 310agn Wireless additionally supports the standard IEEE 802 11n and offers a maximum WLAN performance with up to 300 Mp...

Страница 5: ...ions Components of the documentation The documentation of your device consists of the following parts Installation Guide User manual Reference manual Menu Reference Guide You are now reading the user...

Страница 6: ...do not hesitate to send an e mail directly to info lancom de Our online services www lancom eu are available to you around the clock if you have any questions on the content in this manual or if you...

Страница 7: ...1 Configuring the LANCOM devices 23 2 2 2 Operating access points in managed mode 24 2 3 Status displays and interfaces 24 2 3 1 LEDs of LANCOM OAP 54 Wireless and LANCOM OAP 310agn Wireless 24 2 4 Th...

Страница 8: ...with the wizards in LANconfig 57 5 2 Special wireless LAN parameters for 802 11n 59 5 2 1 Compatibility 59 5 2 2 Performance settings for the wireless LAN module 59 5 2 3 Performance settings for wire...

Страница 9: ...AirLancer Extender antennas 84 7 1 1 Antenna diversity 84 7 1 2 Polarization diversity 85 7 1 3 MIMO 85 7 1 4 Installing the AirLancer Extender antennas 85 7 2 LANCOM Public Spot Option 87 7 3 LANCOM...

Страница 10: ...access to the Internet There are obvious advantages to wireless LANs Notebooks and PCs can be installed where they are needed problems with missing connections or structural changes are a thing of the...

Страница 11: ...administration using a LANCOM WLAN Controller 1 2 Wireless LANs in accordance with 802 11n The new wireless LAN standard IEEE 802 11n ratified as WLAN Enhance ments for Higher Throughput in september...

Страница 12: ...Greater range Data throughput generally decreases when the distance between receiver and transmitter increases The overall improved data throughput allows wireless LANs based on 802 11n to achieve gr...

Страница 13: ...02 11a g 802 11n uses the OFDM scheme Orthogonal Frequency Divi sion Multiplex as its method of modulation This modulates the data signal not on just one carrier signal but in parallel over several Th...

Страница 14: ...ease in data throughput and improved wireless coverage For example the Access Point splits the data into two groups which are then sent simultaneously via separate antennas to the WLAN client Data thr...

Страница 15: ...data throughput As mentioned above it is virtually impossible to transmit different signals on the same chan nel simultaneously as the receiver cannot distinguish between them MIMO uses the reflectio...

Страница 16: ...ependence from power sockets at the WLAN client or when using PoE as the electricity supply for the Access Point Even if the aim of four spatial streams has not yet been achieved the use of two separa...

Страница 17: ...ation channels as there are data streams for transmission 40 MHz channels As the above explanation of OFDM modulation states data throughput rises with an increasing number of carrier signals because...

Страница 18: ...than double the amount of carrier signals can be obtained 108 in total The maximum data throughput when using improved OFDM modu lation and two parallel data streams thus rises to 270 Mbps Short guard...

Страница 19: ...is lost to the management events that occur when the transmission medium is actually accessed Thus the transmitter must negotiate access authorization with the other receivers before transmitting eac...

Страница 20: ...principle also applies to aggregated frames in 802 11n Two different methods are used for frame aggregation These are not explai ned in detail here but they differ in the way aggregated frames are ack...

Страница 21: ...HCP and DNS server for LAN and WAN N N mapping for routing networks with the same IP address ranges over VPN Policy based routing Backup solutions and load balancing with VRRP PPPoE Server WAN RIP Spa...

Страница 22: ...EP encryption up to 128 Bit key length WEP152 IEEE 802 1x EAP MAC address filter ACL Individual passphrases per MAC address LEPS Closed network function Integrated RADIUS server VLAN Intra Cell Blocki...

Страница 23: ...and TFTP server function SSH connection Setup wizards FirmSafe with firmware versions for absolutely secure software upgrades Monitoring and management of the WLAN with Rogue AP Detection Optional sof...

Страница 24: ...is missing please contact your retailer or the address stated on the delivery slip of the unit 2 2 System requirements 2 2 1 Configuring the LANCOM devices Computers that connect to a LANCOM must meet...

Страница 25: ...h is controlled from a central WLAN Controller managed mode 2 3 Status displays and interfaces Meanings of the LEDs In the following sections we will use different terms to describe the behaviour of t...

Страница 26: ...about the wireless LAN access of the second internal wire less network adapter of the base station Meaning as desribed for WLAN1 WLAN Link LANCOM OAP 310agn Wireless only Provides information about t...

Страница 27: ...ansmitting beacons Yellow At least one WLAN network is defined and WLAN module activated The WLAN module is transmitting beacons Yellow Inverse flashing Number of flashes number of connected WLAN stat...

Страница 28: ...three methods available for unlocking Reset connect charge protection Increase the limit that has been reached Completely deactivate the lock that has been triggered set limit to 0 If a time or conne...

Страница 29: ...on to the LAN Both 10 Mbit or 100 Mbit connections are supported The available transfer rate is detected auto matically autosensing The LAN connection features an automatic MDI MDIX detector enabling...

Страница 30: ...ng of up to 50m in length For the same reason the maximum length of cable to the next Ethernet switch may not exceed 50m even if the PoE feed takes place over a shorter length of cable e g when using...

Страница 31: ...gs are lost If possible be sure to backup the current device confi guration before resetting After resetting the LANCOM Access Point returns to managed mode in which case the configuration cannot be d...

Страница 32: ...o U bolts around the pole and use the supplied nuts and washers to fix the mounting plate The package includes two mounting clamps for poles of different diameters Pole mounting Mounting is completed...

Страница 33: ...r changed when the device is switched off Mounting or demounting antennas while the device switched on may cause the destruction of the WLAN module Antennas for LANCOM OAP 54 Wireless screw the two su...

Страница 34: ...nected via a normal Ethernet cable to an available network connection socket in your local network e g an available socket on a hub or switch and the PoE Injector connected with the electricity suppl...

Страница 35: ...ws compatible system software LANtools as supplied You may skip this section if you use your LANCOM OAP Wireless exclu sively with computers running operating systems other than Win dows 2 6 1 Startin...

Страница 36: ...a Windows computer to monitor all of your LANCOM routers and LANCOM access points WLANmonitor enables the observation and surveillance of wireless LAN networks Clients connected to the access points...

Страница 37: ...and in ease At the end of this chapter we show you the necessary settings for the work place computers in the LAN so that they can access the device without pro blem For LANCOM Access Points that are...

Страница 38: ...fol lowing situations Only a single PC is going to be attached to the LANCOM OAP Wireless Setting up a new network Fully automatic TCP IP configuration will not be offered if you are integrating the...

Страница 39: ...Wireless a free IP address from your LAN s address range and enter the network mask Gateway address Enter the gateway s IP address if you have selected Off as the DHCP mode of operation or if another...

Страница 40: ...ed wireless LAN by specifying the net work name Two methods serve to facilitate the specification of network name Mobile wireless devices can search scan the vicinity for wireless LANs and offer the w...

Страница 41: ...new LANCOM devices in the TCP IP net work If the search detects an unconfigured device the Setup Wizard launches to help you with its basic settings or indeed to handle the entire process on your beha...

Страница 42: ...k name SSID and a radio channel If preferred activate the closed network function Accept your entries with Next Charge protection is a function which can place a limit on the costs from WAN connection...

Страница 43: ...t mode In the second operating mode the device can retrieve an IP address for itself from a DHCP server in the LAN If a LANCOM Wireless Router or LANCOM Access Point is centrally managed from a LANCOM...

Страница 44: ...nsole under Linux In this case the LANCOM can be accessed with address x x x 254 the x s stand for the first three blocks in the IP address of the configuration computer Network with DHCP server If a...

Страница 45: ...se suitable tools to find out the IP address assigned to the LANCOM by DHCP and access the device directly using this IP address Use the serial configuration interface to connect a computer running a...

Страница 46: ...the fol lowing screens The settings are not stored in the device until inputs are confirmed on the last screen of the Wizard 3 4 TCP IP settings for PC workstations It is extremely important to assig...

Страница 47: ...be set up to automatically retrieve their own IP address and those of the standard gateway and DNS server via DHCP IP address allocation by a separate DHCP server For this reason the workstation PCs...

Страница 48: ...ty LEPS Access control by MAC address Optional IPSec over WLAN VPN 4 1 1 Encrypted data transfer 802 11i WPA or WEP Encryption takes on a special role in the transfer of data in wireless LANs Wireless...

Страница 49: ...be managed centrally on a RADIUS server integrated RADIUS EAP server in the LANCOM OAP Wireless or external RADIUS EAP server and accessed by the access point when required The dynamically generated...

Страница 50: ...on a regular basis every few days for example 4 1 4 Access control by MAC address Every network device has a unique identification number This identification number is known as the MAC address Media...

Страница 51: ...eak renew the key LEPS avoids the global distribution of passphrases Activate LEPS to enable the use of individual passphrases 4 3 Security settings Wizard Access to the configuration of a device allo...

Страница 52: ...sword entries and the duration of the lock For devices with a WLAN interface you have the option of specifying the security parameters of the wireless network This includes the name of the wireless ne...

Страница 53: ...e set with the Security Wizard are sufficient Detailed information about the security settings mentioned here are to be found in the reference manual Have you secured your wireless network with encryp...

Страница 54: ...configuration area on the Security tab It is absolutely imperative to assign a password to the con figuration if you want to enable remote configuration Have you permitted remote configuration If you...

Страница 55: ...is are to be found in the refe rence manual Have you activated IP masquerading IP masquerading refers to the concealment of local computers while they access the Internet All that is revealed to the I...

Страница 56: ...example an unauthorized person may load your stored configuration file into another device and they can access the Internet at your expense Concerning the exchange of your particularly sensitive data...

Страница 57: ...reless and LANCOM OAP 310agn Wireless Chapter 4 Security settings 56 EN power because the device has been relocated will cause the entire confi guration to be deleted for further information see the r...

Страница 58: ...for your wireless LAN The settings include the general shared parameters and also the individual settings for one or more logical wireless LAN networks WLAN radio cells or SSIDs Mark your LANCOM Acces...

Страница 59: ...e to link a cabled network device to an Access Point over a wireless connection In this operating mode parallel point to point connections are not possible For further information please refer to sect...

Страница 60: ...ackwardly compatible to the previous IEEE 802 11a b g wireless LAN standards even though not all 802 11n functions are sup ported in this mode Compatibility can be allowed or restricted by selecting t...

Страница 61: ...r allel data streams to be implemented to transmit double the amount of data Improving wireless coverage Cyclic shift diversity CSD can be used to transmit a radio signal in different phases This redu...

Страница 62: ...e in question are used Modulation Coding Scheme MCS A specific MCS number denotes a unique combination from the modula tion of the individual carriers BPSK QPSK 16QAM 64QAM coding rate i e proportion...

Страница 63: ...0 4 s short guard interval This increases the effective time available for data transmission and thus the data through put However the wireless LAN system becomes more liable to disruption that can b...

Страница 64: ...under Wireless LAN General Logical WLAN Settings Transmission You can find these parameters in WEBconfig or telnet under LCOS Menu Tree Setup Interfaces WLAN Transmission 5 3 Point to point connection...

Страница 65: ...les involved in designing point to point links and provides tips on aligning the antennas 5 3 1 Geometric dimensioning of outdoor wireless network links The following basic questions must be answered...

Страница 66: ...can be downloaded from our Web site at www lancom eu After selecting your components access points antennas lightning protec tion and cable the calculator works out the data rates ranges and the anten...

Страница 67: ...bject not only screens off a portion of the Fresnel zone but the resulting reflections also lead to a signifi cant reduction in signal reception The radius R of Fresnel zone 1 is calculated with the f...

Страница 68: ...s almost 1m Example With a distance of 8 km between the antennae the result in the 2 4 GHz band is a mast height above the level of the highest obstruction of approx 13 m in the 5 GHz band 9 m Antenna...

Страница 69: ...an find further information on the geometrical design of wireless paths and the alignment of antennas with the help of LANCOM soft ware in the LCOSreference manual The current signal quality over a P2...

Страница 70: ...h the mouse on Point to point activates the option Adjusting Point to Point WLAN Antennas The Point to point entry is only visible in the LANmonitor if the monitored device has at least one base stati...

Страница 71: ...antenna is then fixed and the second antenna is then adjusted to attain the best signal quality 5 3 3 Measuring wireless bridges After planning and installation the wireless bridge can be analyzed to...

Страница 72: ...gured as Slave In the 2 4 GHz band too this setting simplifies the establishment of point to point connections if the automatic channel search is activated It is imperative that the channel selection...

Страница 73: ...aster or Slave If the peers of the P2P connections are to be identified via their station names then enter a unique name for this WLAN station For models with multiple WLAN modules the station name ca...

Страница 74: ...that is marked as the WLAN MAC or MAC ID The other addresses that may be found are not the WLAN MAC address but the LAN MAC address Connecting point to point remote stations by station name When confi...

Страница 75: ...name and enter the name of the corresponding station LANconfig Wireless LAN General Point to point partners WEBconfig Setup Interfaces WLAN interpoint peers 5 3 6 Access points in relay mode Access p...

Страница 76: ...P2P connection adjust the settings for the first logical WLAN network in the appropriate WLAN interface i e WLAN 1 if you are using the first WLAN module for the P2P connection WLAN 2 if you are usin...

Страница 77: ...nections with an individual passphrase Even if an access point in a P2P installation is stolen and the passphrase and MAC address become known all other WLAN con nections secured by LEPS remain secure...

Страница 78: ...can register with a WLAN device in AP mode which is not the case for a WLAN device in client mode 5 4 1 Client settings For LANCOM Access Points and LANCOM Wireless Routers in client mode further set...

Страница 79: ...ccess point 5 4 2 Set the SSID of the available networks In the WLAN clients the SSIDs of the networks to which the client stations are to connect must be entered To enter the SSIDs change to the Gene...

Страница 80: ...WLAN client operating mode the LANCOM Access Points and LANCOM Wireless Routers can authenticate themselves to another access point using EAP 802 1X For this select the desired client EAP method here...

Страница 81: ...supplied to you by your Internet provider Internet provider unknown If the list in the Setup Wizard does not contain your provider you will be asked step by step for all of the necessary data This ac...

Страница 82: ...r Internet provider if possible and you enter your access data Depending on availability the Wizard provides further options for your Internet connection The Wizard will inform you as soon as the entr...

Страница 83: ...d by the protected device itself All access attepts that were not requested from within the local network are invalid The Firewall Wizard assists you to generate new rules for the firewall quickly and...

Страница 84: ...fine whe ther further rules are to be considered when the rule acts on a data packet The wizard will inform you as soon as the entries are complete Close the configuration with Finish 6 2 2 Configurat...

Страница 85: ...the LANCOM Web site under www lancom eu You will also find further information on calculating the best configu ration for AirLancer Extender antennas and third party antennas that you wish to connect...

Страница 86: ...ceive unit with the best signal 7 1 2 Polarization diversity Other diversity techniques process the two signals and combine them into a single signal The most common methods are space diversity and po...

Страница 87: ...ctivated with a terminator supplied LANCOM OAP 54 Wireless To install optional AirLancer antennas switch the device off by unplugging the LAN cable that supplies the power Carefully unscrew the two di...

Страница 88: ...ess a wireless network such as a company net work or the Internet Wireless LAN technology is ideal for offering wireless Internet services to the public in locations such as airports railway stations...

Страница 89: ...ting This is remedied by the LANCOM Systems Open User Authentication OUA the core component of the LANCOM Public Spot Option OUA implements the authentication of all wireless clients by user name and...

Страница 90: ...rs who have physical access to the transmitting medium e g to the LAN cables 802 11i encryption for point to point WLAN connections 802 11i encryption for connecting mobile WLAN clients This function...

Страница 91: ...ow that it is physically con nected Is the correct transmission protocol selected The transmission protocol is defined with the basic settings The Basic Settings Wizard actually sets the correct proto...

Страница 92: ...ownload speeds The cause of this is the RCP IP receive windows size as defined in the Windows operating system The default value is too small for asynchronous connections Instructions for increasing t...

Страница 93: ...g up an antenna system For information about calculating the correct antenna setup please refer to www lancom eu Adapter cables Reverse N to N adapter cables supplied to connect all AirLancer Extender...

Страница 94: ...of conformity LANCOM Systems herewith declares that the devices of the type described in this documentation are in agreement with the basic requirements and other relevant regulations of the 1995 5 EC...

Страница 95: ...ation of conformity 93 Default gateway 45 54 DFS 65 DHCP 21 46 DHCP server 20 37 46 DNS 21 DNS server 20 46 Documentation 23 Download 5 DSL transmission too slow 90 Dynamic Frequency Selection 65 Dyna...

Страница 96: ...t 29 Q QoS 22 Quality of Service 22 R RADIUS 21 48 Relay function 20 Remote configuration 41 Reset connect charge protection 27 Routing table 54 S Security Protecting the configuration 47 Security che...

Страница 97: ...ireless and LANCOM OAP 310agn Wireless Index 96 EN V VPN 20 W WEBconfig 41 HTTPS 41 System requirements 24 WEP 21 47 50 51 52 Wireless LANs Operating modes 10 WLAN Bands scanned 78 Client mode 77 WPA...

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