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LANCOM L

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54g Wireless - LANCOM L

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54ag Wireless - LANCOM L

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54 dual Wireless

Chapter 3: Basic configuration

34

EN

Setup Wizards

The setup Wizards allow quick and easy configuration of the most common
device settings. Select the Wizard and enter the appropriate data on 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 assign the correct addresses to all of the devices
in the LAN. Also, all of these computers must know the IP addresses of two
central stations in the LAN:

Standard gateway – receives all packets which are not addressed to com-
puters in the local network

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Содержание L-54g Wireless

Страница 1: ... LANCOM L 54g Wireless LANCOM L 54ag Wireless LANCOM L 54 dual Wireless LANCOM L 54g Wireless LANCOM L 54ag Wireless LANCOM L 54 dual Wireless 쮿 Handbuch 쮿 Manual c o n n e c t i n g y o u r b u s i n e s s 110702_LC L54 L54dual MANUAL_cov1 1 110702_LC L54 L54dual MANUAL_cov1 1 03 09 2009 12 33 22 03 09 2009 12 33 22 ...

Страница 2: ...LANCOM L 54g Wireless LANCOM L 54ag Wireless LANCOM L 54 dual Wireless ...

Страница 3: ...ed trademarks 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 trademarks of their owners Subject to change without notice No liability for technical errors or omissions Products from LANCOM Systems include software developed by the OpenSSL Project for use in the ...

Страница 4: ... or IEEE 802 11b g and offers simultaneous operations in the 2 4 GHz and or the 5 GHz frequency bands There is no limit to the range of applica tions that the LANCOM L 54 dual Wireless can be used for be it within infrastructure networks or as a WLAN bridge for network coupling Model restriction The sections of the documentation that refer only to a range of models are marked either in the corresp...

Страница 5: ... detail on topics that apply to a variety of models These include for example The system design of the operating system LCOS Configuration Management Diagnosis Security Routing and WAN functions Firewall Quality of Service QoS Virtual Local Networks VLAN Wireless networks WLAN Backup solutions Further server services DHCP DNS charge management The Menu Reference Guide also available at www lancom ...

Страница 6: ... will help you with many answers to frequently asked questions FAQs Furthermore the knowledgebase offers you a large reserve of information The latest drivers firmware utilities and documentation are constantly available for download In addition LANCOM Support is available For telephone numbers and contact addresses for LANCOM Support please refer to the enclosed leaflet or the LANCOM Systems Web ...

Страница 7: ...ting access points in managed mode 14 2 3 Status displays interfaces and hardware installation 14 2 3 1 Status displays 14 2 3 2 The connectors 18 2 3 3 Connecting the LANCOM Access Point 21 2 4 Software installation 23 2 4 1 Starting Software Setup 23 2 4 2 Which software should I install 24 3 Basic configuration 25 3 1 Details you will need 25 3 1 1 TCP IP settings 26 3 1 2 Configuration protect...

Страница 8: ...wireless LAN configuration 46 5 1 WLAN configuration with the wizards in LANconfig 46 5 2 Point to point connections 48 5 2 1 Geometric dimensioning of outdoor wireless network links 48 5 2 2 Antenna alignment for P2P operations 53 5 2 3 Measuring wireless bridges 55 5 2 4 Activating the point to point operation mode 55 5 2 5 Configuration of P2P connections 56 5 2 6 Access points in relay mode 59...

Страница 9: ...g the AirLancer Extender antennas 70 7 2 LANCOM Public Spot Option 71 8 Troubleshooting 73 8 1 No DSL connection is established 73 8 2 DSL data transfer is slow 73 8 3 Unwanted connections under Windows XP 74 9 Appendix 75 9 1 Performance data and specifications 75 9 2 Contact assignment 76 9 2 1 Ethernet interface 10 100Base TX DSL interface 76 9 2 2 Configuration interface Outband 76 9 3 Declara...

Страница 10: ...system or 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 past with wireless networks Apart from that wireless LANs can also be used for connections over longer distances Expensive leased lines and the associated construction measures can be saved...

Страница 11: ...via an access point client mode Extending an existing Ethernet network with a wireless LAN bridge mode Relay function for connecting networks via multiple access points WDS Wireless Distribution Systems Central administration using a LANCOM WLAN Controller 1 2 What can your LANCOM do The following table shows the properties and functions of your device LANCOM L 54g Wireless LANCOM L 54ag Wireless ...

Страница 12: ...interface Access point mode Client mode Managed mode for central configuration of WLAN modules by a WLAN Controller Relay function to link two P2P connections Turbo Mode Double the bandwidth at 2 4 GHz and 5 GHz Super AG incl hardware compression and bursting Multi SSID Roaming function 802 11i WPA with hardware AES encryption WEP encryption up to 128 Bit key length WEP152 IEEE 802 1x EAP MAC addr...

Страница 13: ...Service Configuration and firmware Configuration with LANconfig or with web browser additionally terminal mode for Telnet or other terminal programs SNMP interface 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 software extensions LANCOM Public Spot ...

Страница 14: ...wing accessories If anything 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 the following minimum requirements Operating system with TCP IP support suchas Windows Linux BSD Unix Apple Mac OS OS 2 Access to the LAN via the TCP IP protocol Wireless...

Страница 15: ...N Controller managed mode For operation in managed mode the Access Points require firmware of version 7 22 or higher and a current loader version 1 86 or higher 2 3 Status displays interfaces and hardware installation 2 3 1 Status displays Front side The LANCOM L 54ag Wireless and LANCOM L 54g Wireless have status dis plays on the front panel LANCOM L 54 dual Wireless LANCOM L 54g Wireless LANCOM ...

Страница 16: ...ng means that the LED lights up very briefly in the respective col our and stay then clearly longer approximately 10x longer switched off Inverse flashing means the opposite The LED lights permanently in the respective colour and is only briefly interrupted Flickering means that the LED is switched on and off in irregular inter vals Power This LED provides information on the device s operating sta...

Страница 17: ...ther operating mode Orange red In the housing cover blinking alternately with the online LED At least one WLAN module is in managed mode and has found a WLAN Controller However the WLAN Controller cannot assign a configuration because the firmware and or the device s loader version is not com patible with the WLAN Controller The power LED is blinking and no connection can be made If the power LED ...

Страница 18: ...and WLAN mod ule activated The WLAN module is transmitting bea cons Green Inverse flashing Number of flashes number of connected WLAN sta tions and P2P wireless connections followed by a pause default Alternatively the frequency of the flashed can indicate the received signal strength of a P2P link or the received signal strength from an access point to which this device is connected in client mod...

Страница 19: ... power adapter Aux connector for first WLAN module Second 10 100base Tx for the connection to the LAN 10Mbp or 100Mbp connections are supported The used transfer speed will auto matically be identified autosensing The LAN connector of the LANCOM Access Point supports the Power over Ethernet standard PoE You find further information about operat green regularly blinking connection establishing DSL ...

Страница 20: ...ttings which are called by pressing the button for different lengths of time Some devices simply cannot be installed under lock and key There is consequently a risk that the configuration will be deleted by someone pressing the reset button too long With the suitable setting the behavior of the reset button can be controlled accordingly Reset button This option controls the behavior of the reset b...

Страница 21: ...es must be available by the cabling PoE feeds the power over those four wires which are normally not used for data transfer The PoE supply works only in such network segments in which exclusively PoE capable devices are operating The protection of network devices without PoE support is guaranteed by an intelligent mechanism that tests the network segment for devices without PoE support before star...

Страница 22: ...lowing steps Antennas screw the supplied antennas onto the back side of the device Antennas are only to be attached or changed when the device is switched off Mounting or demounting antennas while the device switched on may cause the destruction of the WLAN module LANCOM L 54 dual Wireless If the reverse SMA antennas are attached to the device directly the quality of data transfer may be compromis...

Страница 23: ...e found under LAN interface exclusive or in parallel for DSLoL Page 22 Connect up the power supply Use the supplied power supply unit to provide the device with power via connector Use the supplied power sup ply unit to provide the device with power via connector LAN interface Can be used exclusively or in parallel for DSLoL There are basically two possibilities for using the access point for DSLo...

Страница 24: ...ord has been given 2 4 Software installation The following section describes the installation of the Windows compatible system software LANtools as supplied You may skip this section if you use your LANCOM Access Point exclu sively with computers running operating systems other than Win dows 2 4 1 Starting Software Setup Place the product CD into your drive The setup program will start automati ca...

Страница 25: ... you can use a Windows computer to monitor all of your LANCOMs WLANmonitor enables the observation and surveillance of wireless LAN networks Clients connected to the access points are shown and even non authenticated access points and clients can be displayed as well rogue AP detection and rogue client detection With Documentation you copy the documentation files onto your PC Select the appropriat...

Страница 26: ...can now take place quickly 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 unconfigured and in their factory settings the WLAN modules are switched off and set to the Managed operating mode The WLAN modules search the LAN for a LANCOM WLAN Controll...

Страница 27: ... in the fol lowing situations Only a single PC is going to be attached to the Access Point Setting up a new network Fully automatic TCP IP configuration will not be offered if you are integrating the Access Point into an existing TCP IP LAN In this case please continue with the section Required information for manual TCP IP configuration The result of fully automatic TCP IP configuration is as fol...

Страница 28: ...rom 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 network device is assuming the role of gateway in the Server mode of operation DNS server Enter the IP address of a DNS server to resolve domain names if you have selected Off as the DHCP mode of operation or if another network ...

Страница 29: ... selection By using the network name ANY the mobile wireless device registers with the nearest available wireless LAN The wireless LAN can be closed in order to prevent this procedure In this case it will not accept any devices attempting to register with the network name ANY Selecting a radio channel The access point operates in a specific radio channel The radio channel is selected from a list o...

Страница 30: ...ss on your behalf assuming that the appropriate networking environment exists If the Setup Wizard does not start automatically you can manually search for new devices at all interfaces if the Access Point is connec ted via the serial configuration interface or in the network File Find devices If you cannot access an unconfigured Access Point the problem may be the LAN netmask In case there are les...

Страница 31: ...workstations for information on the settings that are required for computers in the LAN 3 3 Instructions for WEBconfig Device settings can be configured from any Web browser WEBconfig configu ration software is an integral component of the LANCOM A Web browser is all that is required to access WEBconfig WEBconfig offers similar Setup Wizards to LANconfig and hence provides the perfect conditions f...

Страница 32: ...ss Point is centrally managed from a LANCOM WLAN Controller the DHCP mode is swit ched from auto mode to client mode upon provision of the WLAN configuration Network without a DHCP server Not for centrally managed LANCOM Wireless Routers or LANCOM Access Points In a network without a DHCP server unconfigured LANCOM devices enable their own DHCP server service when switched on and assign IP address...

Страница 33: ... in the console 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 DHCP server for the assignment of IP addresses is active in the LAN an unconfigured LANCOM device disables its own DHCP server switches to DHCP client mode and retrieves an IP address from t...

Страница 34: ... LANCOM Use 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 terminal program to the device Login When prompted for user name and password when accessing the device enter your personal data in the appropriate fields Observe the use of upper and lower c...

Страница 35: ...e data on 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 assign the correct addresses to all of the devices in the LAN Also all of these computers must know the IP addresses of two central stations in the LAN Standard gateway receives all packets which ...

Страница 36: ...Cs have to 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 have to be set up to automatically retrieve their own IP address and those of the standard gateway and DNS server via DHCP The DHCP server is to be programmed such that the IP address of the...

Страница 37: ...ase Security 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 communication with IEEE 802 11 is supplemented with the the encryption standards 802 11i WPA and WEP The aim of the encryption methods is to provide wireless LAN with levels of security equ...

Страница 38: ...ccess data can be managed centrally on a RADIUS server integrated RADIUS EAP server in the Access Point or external RADIUS EAP server and accessed by the access point when required The dynamically generated and cryptographically secure key material for 802 11i WPA1 2 replaces the manual key management The IEEE 802 1x technology has already been fully integrated since Windows XP Client software exi...

Страница 39: ...e changed 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 Access Control and it is unique worldwide The MAC address is programmed into the hardware Wireless LAN devices from LANCOM Systems display their MAC number on the housing Access to an infrast...

Страница 40: ...on of a leak 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 allows access to more than just critical information e g WPA key Internet password Far more critical is that set tings for security functions e g the firewall can be altered Unauthorized access i...

Страница 41: ...orrect password 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 network the closed network function and encryption by 802 11i WPA or WEP For devices with an optional second WLAN inter face you can set the parameters for both wireless networks separately Fo...

Страница 42: ... that were 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 encryption and access control lists With the help of 802 11i WPA or WEP you can encrypt the data in your wireless network with different encryption methods such as AES TKIP or WEP LANCOM Systems re...

Страница 43: ...anagement 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 do not require remote configuration please ensure to switch it off If you need to make use of remote configuration ensure that you do not fail to password protect the configuration see the s...

Страница 44: ...ions on this 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 Internet is the IP number of the router module of the device The IP address can be fixed or dynami cally assigned by the provider The computers in the LAN then use the rou ter as a gateway an...

Страница 45: ... byway of 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 via wireless LAN have you set up the functions offered by IEEE 802 1x If you move especially sensitive data via wireless LAN you can provide even stronger security by using the IEEE 802 1x t...

Страница 46: ...rence manual Have you ensured that the reset button is safe from accidental configuration resets Some devices simply cannot be installed under lock and key There is con sequently a risk that the configuration will be deleted by mistake if a co worker presses the reset button too long The behavior of the reset button can be set so that a press is either ignored or it causes a re start depen ding on...

Страница 47: ...ints 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 Access Point in the selection window in LANconfig From the command line select Extras Setup Wizard In the selection menu select the Setup Wizard Configure WLAN inter face and confirm the selection wit...

Страница 48: ...for example 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 section Client Mode For devices with two WLAN modules the operating mode can be set separately for each module so that for example one WLAN module works in managed mode and another operates as a...

Страница 49: ...s 5 2 Point to point connections LANCOM Access Points can serve not only as central stations in a wireless net work they can also operate in point to point mode to bridge longer dis tances For example they can provide a secure connection between two networks that are several kilometers apart without direct cabling or expen sive leased lines This chapter introduces the basic principles involved in ...

Страница 50: ...ulate the output power of the access points as well as the achievable distances and data rates The program 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 antenna gain settings that have to be entered into the access point Please note that when using 5 ...

Страница 51: ... Positioning the antennas Antennas do not broadcast their signals linearly but within an angle that depends on the model in question The spherical expansion of the signal waves produces amplification or interference of the effective power output at certain distances along the connection between the transmitter and receiver ...

Страница 52: ...etween transmitter and receiver d are known R 0 5 λ d The wavelength in the 2 4 GHz band is approx 0 125 m in the 5 GHz band approx 0 05 m Example With a separating distance of 4 km between the two antennae the radius of Fresnel zone 1 in the 2 4 GHz band is 11 m in the 5 GHz band 7 m Protecting the components employed from the consequences of lightning strikes and other electrostatic influences i...

Страница 53: ...ht above the level of the highest obstruction of approx 13 m in the 5 GHz band 9 m Antenna power The power of the antennas must be high enough to ensure acceptable data transfer rates On the other hand the country specific legal regulations regar ding maximum transmission power should not be exceeded The calculation of effective power considers everything from the radio module in the transmitting ...

Страница 54: ...ult You can 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 P2P connection can be displayed on the device s LEDs or in the LANmonitor in order to help find the best possible alignment for the antennas WLAN Router ANTENNA ADMINISTRATION ACCESS POINT ANTE...

Страница 55: ...cking with 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 station defined as a remote site for a P2P connection LANconfig Wireless LAN General Physical WLAN settings Point to Point In the dialog for setting up point to point connections LANmonitor prompt...

Страница 56: ...his first antenna is then fixed and the second antenna is then adjusted to attain the best signal quality 5 2 3 Measuring wireless bridges After planning and installation the wireless bridge can be analyzed to deter mine the actual data throughput Further information about the available tools and taking measurements can be found in the LANCOM Techpaper The performance of outdoor P2P connections av...

Страница 57: ...d be configured 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 scheme is configured cor rectly if the point to point connections are to be encrypted with 802 11i WPA a master as authentication server and a slave as client 5 2 5 Configuration of P2P conn...

Страница 58: ...o either Master 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 can be entered separately for each physical WLAN interface Close the physical WLAN settings and open the list of Point to point partners For each of the maximum of six P2P connections enter ei...

Страница 59: ...er addresses that may be found are not the WLAN MAC address but the LAN MAC address Alternatively you will find the MAC addresses for the WLAN cards in the devices under WEBconfig Telnet or a terminal program under the following paths Configuration with WEBconfig or Telnet Under WEBconfig or Telnet you can set the settings for the point to point connections under the following paths Configuration ...

Страница 60: ...11i such as the simple configuration and the powerful encryption with AES are thus avai lable for P2P mode as are the improved security of the passphrase from the LANCOM Enhance Passphrase Security LEPS Encryption with 802 11i WPA To activate the 802 11i encryption for a correctly configured P2P connection adjust the settings for the first logical WLAN network in the appropriate WLAN interface i e...

Страница 61: ...r the following paths LEPS for P2P connections A further gain in security can be attained by additionally using LANCOM Enhanced Passphrase Security LEPS which involves the matching of MAC address and passphrase LEPS can be used to secure single point to point P2P connections with an individual passphrase Even if an access point in a P2P installation is stolen and the passphrase and MAC address bec...

Страница 62: ...de To connect individual devices with an Ethernet interface into a wireless LAN LANCOM devices with a WLAN module can be switched to client mode whereupon they act as conventional wireless LAN adapters and not as access points AP The use of client mode therefore allows devices fitted with only an Ethernet interface such as PCs and printers to be integrated into a wire less LAN Configuration tool M...

Страница 63: ...lient mode further settings client behavior can be configured from the Client mode tab under the settings for the physical interfaces The configuration of the client settings can also be carried out with the WLAN Wizards in LANconfig To edit the settings for client mode in LANconfig go to the Client mode tab under the physical WLAN settings for the desired WLAN interface ACCESS POINT LAPTOP W LAN ...

Страница 64: ... 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 General tab under LANconfig in the Wireless LAN configuration area In the Interfaces section select the first WLAN interface from the list of logical WLAN settings Enable the WLAN network and enter the SSID of the network the cli...

Страница 65: ...first WLAN interface from the list of logical WLAN settings Enable encryption and match the encryption method to the settings for the access point In 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 Note that the selected client EAP method must matc...

Страница 66: ...ficate only the key is ente red as a combination username password For TLS in addition the EAP TLS device certificate including the private key Under WEBconfig or Telnet the network settings for the logical WLAN interfaces can be found under the following paths Configuration tool Call WEBconfig Telnet Expert configuration Setup Interfaces WLAN Encryp tion WLAN 1 ...

Страница 67: ...to enter any additional parameters to set up your Internet access All that is required is the authentication data as 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 access data will have been sup plied to you by your Internet provider Other connection...

Страница 68: ...ur device in the selection window From the command line select Extras Setup Wizard In the selection menu select the Setup Wizard Set up Internet connec tion and confirm the selection with Next In the following windows you select your country your Internet provider if possible and you enter your access data Depending on availability the Wizard provides further options for your Internet connection T...

Страница 69: ...e entry Set up Internet connection from the main menu In the following windows you select your country your 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 entries are complete Close the configuration with Finish ...

Страница 70: ...nnas is available from 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 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 accordin...

Страница 71: ... 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 polarization diversity LANCOM Systems supplies various polarization diversity antennas for connection to LANCOM devices With these models two orthogonally polarized signals are received at a transmitter receiver unit and combined to fo...

Страница 72: ...es to the public in locations such as airports railway stations restaurants or cafes via so called HotSpots The LANCOM Public Spot Option is intended for operators of public wireless networks It enables the easy installation and maintenance of public HotSpots by providing LANCOM Access Points and LANCOM Routers with additional functions for authentication and billing for public Internet ser vices ...

Страница 73: ...core component of the LANCOM Public Spot Option OUA implements the authentication of all wireless clients by user name and password It checks the authorization of each user with a RADIUS server Accounting data online time volumes on a per user and per session basis can be passed on to the central RADIUS server All the client PC needs is a wireless card el g AirLancer TCP IP and an Inter net browse...

Страница 74: ...as the correct transfer protocol been selected The transfer protocol is set along with the basic settings The basic setup wiz ard will enter the correct settings for numerous DSL providers automatically Only if your DSL provider is not listed you will have to enter manually the pro tocol being used In any case the protocol that your DSL provider supplies you with should definitely work You can mon...

Страница 75: ...se in download speed The cause of this problem is what is known as the TCP IP receive window size of the Windows operating system that is set to a value too small for asynchronous connec tions Instructions on how to increase the Windows size can be found in the Knowl edge Base of the support section of the LANCOM web site www lancom eu 8 3 Unwanted connections under Windows XP Windows XP computers...

Страница 76: ... after IEEE 802 3af 2x PoE after IEEE 802 3af redundant Antennas 2 sinlgeband dipole antennas supplied 2 dualband dipole antennas supplied 4 dualband dipole antennas supplied Please respect the restrictions given in your country when setting up an antenna system For information about calculating the correct antenna setup please refer to www lancom com Housing 210 mm x 143 mm x 45 mm B x H x T rugg...

Страница 77: ...ment 9 2 1 Ethernet interface 10 100Base TX DSL interface 8 pin RJ45 socket corresponding to ISO 8877 EN 60603 7 9 2 2 Configuration interface Outband 8 pin mini DIN socket Connector Pin IAE 1 T 2 T 3 R 4 PoE G 5 PoE G 6 R 7 PoE 48 V 8 PoE 48 V Connector Pin IAE 1 CTS 2 RTS 3 RxD 4 RI 5 TxD 6 DSR 7 DCD 8 DTR U GND ...

Страница 78: ...M 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 directive The CE declarations of conformity for your device are available in the appro priate product area on the LANCOM Systems web site www lancom eu ...

Страница 79: ... file 44 Configuration password 42 Configuration protection 27 Contact assignment 76 DSL interface 76 LAN interface 76 Outband 76 D Default gateway 34 43 DFS 49 DHCP 35 DHCP server 10 26 35 DNS DNS server 10 35 Download 5 DSL connection problems establishing the connection 73 DSLoL 19 22 Dynamic Frequency Selection 49 Dynamic frequency selection 49 E EAP 11 36 37 Encryption methods 64 F Firewall 1...

Страница 80: ...29 PAT see IP masquerading Point to point 38 48 point to point 10 11 Power adapter 18 Power over Ethernet 20 R RADIUS 11 37 Remote configuration 30 Reset switch 19 Reset the toll protection 16 Routing table 43 S Security Protecting the configuration 36 Security checklist 41 self sufficient 9 14 Serial configuration cable 19 SNMP Configuration protection 42 Software installation 23 SSID 28 30 63 St...

Страница 81: ...L 54ag Wireless LANCOM L 54 dual Wireless Index 80 EN Turbo Mode 11 U UDP 43 W WEBconfig 30 HTTPS 30 System requirements 14 WEP 11 36 39 40 41 Wireless LANs Operating modes 10 WLAN Bands scanned 63 Client mode 62 WPA 11 36 37 40 41 ...

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