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Introduction

9

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ELSA LANCOM Wireless L-II

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EN

Infrastructure 
network

All computers with wireless network cards are able to access a wired net-
work via an access point.  The access point acts as the connection between
the LAN and the WLAN and it also forms the switching center for data traffic
within the WLANs.

A wireless network with a access point is also referred to as an infrastructure
network.

This network type is ideally suited as an addition to existing LANs.  The infra-
structure network is the ideal solution for expansion of a LAN in areas where
wiring is not possible or not economical.

Roaming

Multiple access points can be used if the range of a cell is not sufficient to
link all mobile stations.  This makes it possible to switch from one wireless
cell to another without interrupting the connection to the network.

Infrastructure network

100235 Wireless L-11.book Seite 9 Montag, 30. Oktober 2000 5:43 17

Содержание LANCOM Wireless L-II

Страница 1: ...ELSA LANCOM TM Wireless L II 100235 Wireless L 11 book Seite 1 Montag 30 Oktober 2000 5 43 17...

Страница 2: ...ification authority has confirmed ELSA conformity to the worldwide ISO 9001 standard in certificate number 09 100 5069 issued on June 15 1998 You can find all declarations and approvals for the produc...

Страница 3: ...als basic technical information e g wireless networks general networking technology TCP IP etc workshop with detailed examples of applications reference section for general information including a com...

Страница 4: ...ELSA LANCOM Wireless L II EN 100235 Wireless L 11 book Seite 4 Montag 30 Oktober 2000 5 43 17...

Страница 5: ...2 The bottom of the unit 22 2 5 How to connect the device 23 2 6 Software installation 23 2 7 Quickstart 23 2 7 1 The Wizards 24 2 7 2 Basic settings 25 3 Configuration and management 31 3 1 Radio or...

Страница 6: ...7 4 2 3 Security for your LAN 48 4 3 Call charge management 51 4 4 Automatic address administration with DHCP 52 4 4 1 The DHCP server 52 4 4 2 DHCP on off or auto 53 4 4 3 How are the addresses assig...

Страница 7: ...all EU countries and Switzerland Use of the devices is reg ulated throughout Europe by the 1999 5 EG guideline of the European Parlia ment and Council Directive of 9 March 1999 regarding Radio and Tel...

Страница 8: ...ions and the access point can reach each other and exchange data is known as a radio cell All of the standard functions of a wired network are also available in a wire less network Access to files ser...

Страница 9: ...referred to as an infrastructure network This network type is ideally suited as an addition to existing LANs The infra structure network is the ideal solution for expansion of a LAN in areas where wir...

Страница 10: ...LANCOM Wireless L 11 to a 10 Mbit LAN or to a DSL modem DSL connection With special DSL firmware on CD ROM you can connect your LANCOM to a DSL modem such as the T DSL network offered by Deutsche Tele...

Страница 11: ...If an error occurs during the upload e g a transmission error the functioning previous version is automatically reactivated Wireless and secure with WEP The WEP Wired Equivalent Privacy encryption met...

Страница 12: ...help file for detailed information on the ELSA AirLancer Client Manager Status displays LED indicators on the front of your access point allow you to monitor the Eth ernet connections and the current...

Страница 13: ...d to exclude data from being tranmitted to all or part of the network Data that belongs to specific services e g printing services can also be excluded from transfer NetBIOS proxy ELSA routers offer a...

Страница 14: ...ou to determine the incorrect configuration of the computer or router quickly and allocate the resulting expenses to their appropriate causes Roaming The roaming feature lets you construct bigger wire...

Страница 15: ...ss L 11 ELSA AirLancer wireless network adapter with integrated antenna already in the access point Power adapter LAN connector cable also suitable when connecting to a DSL modem Documentation CD cont...

Страница 16: ...y Start Settings Control panel Network TCP IP Properties IP address Automatically receive IP address Also delete any existing entries for DNS servers and gateways found under the Gateway and DNS Confi...

Страница 17: ...you which IP address was assigned to the computer by the DHCP server and which addresses have been specified for DNS servers and the gateway 2 3 2 Windows NT 4 0 Using Windows NT 4 0 as an example th...

Страница 18: ...er can be given 10 1 1 1 and all can have the subnet mask of 255 255 255 0 To test whether or not a specific IP address such as 10 1 1 1 is free enter ping 10 1 1 1 in a DOS session If you do not rece...

Страница 19: ...ardware If your network card is not detected during system startup launch the hardware wizard by selecting Start Settings Control Panel Add Remove Hardware Select to search for new hardware and then s...

Страница 20: ...TCP IP should be listed in any case Select its entry and click the Properties button This opens a dialog where you can define all of the properties for this network protocol The procedures for settin...

Страница 21: ...ront of the unit LEDs You will find a number of LEDs as display elements on the front panel This LED shows the send and receive status of the card Off no wireless activity Blinking wireless data being...

Страница 22: ...ess point indicates data collisions on the LAN The LED LAN link on the access point indicates data activity in the Ethernet network The Reset button is recessed in the case and can only be reached wit...

Страница 23: ...re installation The ELSA LANconfig configuration software for Windows operating systems enables you to set up your router easily and conveniently for the desired application To use it first install EL...

Страница 24: ...access the LANCOM using WEBconfig The TCP IP protocol is installed on the system with a fixed IP address In this case LANconfig finds LANCOM at the client computer s address which ends in 254 x x x 25...

Страница 25: ...lanation of its values The following provides a detailed description of the basic settings for the ELSA LANCOM Wireless L 11 2 7 2 Basic settings With the basic settings you assign a name to the unit...

Страница 26: ...ndows network for example If you are not sure whether your network already uses IP addresses click on Start Run enter winipcfg on the command line and click OK If the next window shows the value 0 0 0...

Страница 27: ...er on your LAN Disable Automatically configure workstations via DHCP only if you want to use IP addresses on your network or already use another DHCP server The functions of the DHCP server are descri...

Страница 28: ...tart the Telnet connection by clicking Start Run and entering Telnet 10 0 0 254 on the command line Set the IP address on the LAN WLAN cd setup TCP IP set intranet addr 10 0 0 1 set intranet mask 255...

Страница 29: ...work The router itself is addressable using the IP address of 10 0 0 1 After you reboot your system all units on the local network will be assigned IP addresses by the DHCP server in the router It wil...

Страница 30: ...Installation ELSA LANCOM Wireless L II 30 EN 100235 Wireless L 11 book Seite 30 Montag 30 Oktober 2000 5 43 17...

Страница 31: ...or block the access altogether by using the IP access list The configuration of ELSA LANCOM Wireless L 11 requires the use of either ELSA LANconfig for Windows ELSA WEBconfig or Telnet supplied with...

Страница 32: ...onfiguration File option reads the device s current settings and displays the General configuration selection The remainder of the program s operation is pretty much self explanatory or you can use th...

Страница 33: ...files are kept Ideally keep the help files on a server that is always accessible Use the following syntax when specifying the directory On a local computer for example file C Program Files ELSAlan HT...

Страница 34: ...t saved additionally in the device as a second firmware Of the two firmware versions saved in the device only one can ever be active When loading a new firmware version the active firmware version is...

Страница 35: ...A LANconfig for example If the newly installed release contains parameters which are not present in the device s current firmware the router will add the missing values using the default settings ELSA...

Страница 36: ...riteflash command Binary file transfer must be set for TFTP However many systems have the ASCII format preset This example for Windows NT shows you how to achieve this by using the i parameter The dev...

Страница 37: ...o plain text thereby helping you to troubleshoot Installing ELSA LANmonitor Usually ELSA LANmonitor is automatically installed together with the ELSA LANconfig configuration software on the computer f...

Страница 38: ...connection via the wireless network card WLAN connection Insert the accompanying CD in the computer which is connected with the access point via WLAN Initialize ELSA LANconfig and select Processing Fi...

Страница 39: ...39 ELSA LANCOM Wireless L II EN If you would like to delete this setup and install your access point for LAN operation within an Ethernet network proceed likewise 100235 Wireless L 11 book Seite 39 M...

Страница 40: ...Configuration and management ELSA LANCOM Wireless L II 40 EN 100235 Wireless L 11 book Seite 40 Montag 30 Oktober 2000 5 43 17...

Страница 41: ...gure your device Please refer to the electronic documentation for a detailed description of all parameters and menus 4 1 Establishing wireless connections This section explains how to get a wireless n...

Страница 42: ...g channels 1 6 and 13 This means that no more than three access points within reach of a wireless LAN can be operated completely free of interference i e only three access points per room or floor A...

Страница 43: ...nt If you are creating an infrastructure network with more than one access point the roaming function is always available Roaming guarantees the ability of a mobile computer to switch from one wireles...

Страница 44: ...odule LANconfig Management Interfaces WLAN access General Point to point 4 1 5 Wireless Internet gateway via DSL The use of the LANCOM Wireless as a DSL router or DSL gateway is only possible if your...

Страница 45: ...s for the exchange of data are established in the configuration of the device These include the security of your network monitoring of costs and the authorizations for the individual network users Nee...

Страница 46: ...in the ELSA LANconfig for configuring login barring in the Management configuration area on the Security tab or under Setup Config module in the menu Lock configuration after Login errors Lock configu...

Страница 47: ...work On a closed network the network name is not visible on remote stations Logging on using the ANY network name is not possible in this case Therefore all wireless stations on a closed network have...

Страница 48: ...tering Access protection with Password Firewall filter The firewall filters of the ELSA LANCOM devices offer filter functions that can apply to individual computers or the entire network It is possibl...

Страница 49: ...idual objects into filter rules The rule table contains the protocol being filtered the source object the target object and the filter action to be executed The protocol and the source and target obje...

Страница 50: ...veral ways of configuring firewall filters WEBconfig Full configuration Setup IP router module Firewall LANconfig IP router Filter Telnet Setup IP router module Firewall ELSA LANconfig provides a very...

Страница 51: ...asquerading provides a hiding place for every computer while connected with the Internet Only the router module of the unit and its IP address are visible on the Internet The computers in the LAN then...

Страница 52: ...not available locally In a smaller network it is still conceivable that these addresses could be entered manually in all the computers in the network In a larger network with many workstation compute...

Страница 53: ...s to the off state off The DHCP server is permanently disabled auto The server is in automatic mode In this mode after switching it on the device looks for other DHCP server within the local network T...

Страница 54: ...her computer The DHCP server also checks whether the address selected is still available in the local network As soon as the uniqueness of an address has been established the requesting computer is as...

Страница 55: ...ted period of time Once this period of validity has expired the computer can no longer use these addresses In order for the computer to keep from constantly losing its addresses above all its IP addre...

Страница 56: ...eters assigned to it by the DHCP server This can be performed via the Network Neighborhood properties for example Click Start Settings Control Panel Network Select the TCP IP entry for your network ad...

Страница 57: ...ured device to your local network using a network cable Switch the device on It will not find any other DHCP servers in the network and will thus enable its own DHCP functions If you have not done so...

Страница 58: ...ard for the basic settings If you have not previously used any IP addresses in your network select the option Make all settings automatically in this wizard and confirm your selection with Finish in t...

Страница 59: ...e The accounting tool determines online times and data transfer volumes and breaks them down according to the computers that used the connections The accounting data are stored in a list for current c...

Страница 60: ...es how often a user s action led to the establishment of a connection 4 5 1 Configuring accounting Settings for accounting are found under Setup Accounting From there you can enable or disable account...

Страница 61: ...time Total online time for this user to this remote site Connections The number of counted connections for this user to this remote site If a user establishes a connection to another remote site a new...

Страница 62: ...Operating modes and functions ELSA LANCOM Wireless L II 62 EN 100235 Wireless L 11 book Seite 62 Montag 30 Oktober 2000 5 43 17...

Страница 63: ...tween wireless LAN and ethernet LAN by bridge protocols for WAN PPPoE DSL routed proto cols via ISDN DSL TCP IP IPX NetBIOS IP Security Password protection address and protocol filters WEP encryption...

Страница 64: ...mitted in what country Frequency band 2400 2500 MHz Channel no USA FCC EU ETSI France Japan 1 2412 2412 2412 2 2417 2417 2417 3 2422 2422 2422 4 2427 2427 2427 5 2432 2432 2432 6 2437 2437 2437 7 2442...

Страница 65: ...htlinie 73 23 EWG Low Voltage Directive 73 23 EEC EMV Richtlinie 89 336 EWG EMC Directive 89 336 EEC Zur Beurteilung der Konformit t wurden folgende Normen herangezogen The assessment of this product...

Страница 66: ...The warranty period for the ELSA AirLancer wireless adapter is two years This period begins at the day of delivery from the ELSA dealer Warranty services do not result in an extension of the warranty...

Страница 67: ...rdless of the legal basis are excluded This does not apply if e g injury to persons or damage to private property are specifically covered by the product liability law or in cases of intentional act o...

Страница 68: ...Appendix ELSA LANCOM Wireless L II 68 EN 100235 Wireless L 11 book Seite 68 Montag 30 Oktober 2000 5 43 17...

Страница 69: ...4 Connection duration 11 D Data encryption 47 Data volume 13 DHCP 52 53 DHCP mode 53 DHCP server 52 configuration 57 DNS server 13 52 54 DSL 44 E Electronic documentation 15 End address 53 Ethernet 10...

Страница 70: ...54 NetBIOS 13 O Online media 31 Online time 13 Operating modes 41 P Package contents 15 Password 48 Password protection 45 PAT 48 51 Peer to peer network 8 13 Period of validity 52 55 Point to point...

Страница 71: ...ranty conditions 66 WEBconfig 35 36 WEP 47 Windows networks 13 Winipcfg 26 Wireless Internet gateway 44 Wireless LAN 8 Wireless network 7 Wireless network adapter 8 WLAN 8 WWW 51 100235 Wireless L 11...

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