Lancom L-54g Wireless Manual
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Lancom L-54g Wireless Manual

Lancom L-54g Wireless Manual

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LANCOM L-54g Wireless
LANCOM L-54ag Wireless
LANCOM L-54 dual Wireless
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  • Page 1 . . . c o n n e c t i n g y o u r b u s i n e s s LANCOM L-54g Wireless LANCOM L-54ag Wireless LANCOM L-54 dual Wireless Handbuch Manual...
  • Page 2 LANCOM L-54g Wireless LANCOM L-54ag Wireless LANCOM L-54 dual Wireless...
  • Page 3 The reproduction and distribution of the documentation and software supplied with this product and the use of its contents is subject to written authorization from LANCOM Systems. We reserve the right to make any alterations that arise as the result of technical development.
  • Page 4 LANCOM L-54g Wireless, complying to the 802.11g standard in the 2,4 GHz band, which is downward-compatible to 802.11b devices. This opens a vast range of possibilities where to use the LANCOM L-54g Wireless: at the bureau, in open spaces or to interconnect LANs.
  • Page 5 CD supplied) describes all of the parameters in LCOS, the operating system used by LANCOM products. This guide is an aid to users during the configu- ration of devices by means of WEBconfig or the telnet console.
  • Page 6 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Preface Should you find any errors, or if you would like to suggest improvements, please do not hesitate to send an e-mail directly to: info@lancom.eu Our online services www.lancom.eu...

  • Page 7: Table Of Contents

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Contents Contents 1 Introduction 1.1 What is a wireless LAN? 1.1.1 Modes of operation of wireless LANs and access points 1.2 What can your LANCOM do? 2 Installation 2.1 Package contents...
  • Page 8 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Contents 4 Security settings 4.1 Security in the wireless LAN 4.1.1 Encrypted data transfer (802.11i/WPA or WEP) 4.1.2 802.1x / EAP 4.1.3 LANCOM Enhanced Passphrase Security 4.1.4 Access control by MAC address 4.1.5 IPSec over WLAN...
  • Page 9 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Contents 7 Options and accessories 7.1 Optional AirLancer Extender antennas 7.1.1 Antenna diversity 7.1.2 Polarization diversity 7.1.3 Installing the AirLancer Extender antennas 7.2 LANCOM Public Spot Option 8 Troubleshooting 8.1 No DSL connection is established...

  • Page 10: Introduction

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 1: Introduction 1 Introduction What is a wireless LAN? The following sections describe the functionality of wireless networks  in general. You can see from the table 'What your LANCOM can do' further below which functions your device supports.

  • Page 11: Modes Of Operation Of Wireless Lans And Access Points

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 1: Introduction 1.1.1 Modes of operation of wireless LANs and access points Wireless LAN technology and access points in wireless LANs are used in the following modes of operation:...
  • Page 12 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 1: Introduction LANCOM LANCOM LANCOM L-54g L-54ag L-54 dual Wireless Wireless Wireless ✔ ✔ ✔ WAN RIP ✔ ✔ ✔ Spanning Tree protocol ✔ ✔ ✔ Layer 2 QoS tagging WLAN ✔...
  • Page 13 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 1: Introduction LANCOM LANCOM LANCOM L-54g L-54ag L-54 dual Wireless Wireless Wireless ✔ ✔ ✔ WLAN QoS (IEEE 802.11e, WME) LAN Connection ✔ ✔ Fast Ethernet LAN port (10/100Base-TX) ✔...

  • Page 14: Installation

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation 2 Installation This chapter will assist you to quickly install hardware and software. First, check the package contents and system requirements. The device can be installed and configured quickly and easily if all prerequisites are fulfilled.

  • Page 15: Operating Access Points In Managed Mode

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation The LANtools also require a Windows operating system. A web  browser under any operating system provides access to WEBconfig. 2.2.2 Operating access points in managed mode LANCOM Wireless Routers and LANCOM Access Points can be operated either as self-sufficient Access Points with their own configuration ("Access Point...
  • Page 16 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation ³ Power · WLAN Link (1+2) Meanings of the LEDs In the following sections we will use different terms to describe the behaviour of the LEDs: Blinking means, that the LED is switched on or off at regular intervals in the respective indicated colour.
  • Page 17 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation Red/green Blinking alter- Device insecure: Configuration password not set nately Orange/green In the housing At least one WLAN module is in managed mode and cover; blinking has not found a WLAN Controller yet.
  • Page 18 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation Provides information about the WLAN connections via the internal WLAN module. The following can be displayed for WLAN link: No WLAN network defined or WLAN module deacti- vated.

  • Page 19: The Connectors

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation green regularly blinking connection establishing DSL over LAN green on with short inter- DSL over LAN active (e.g. PPPoE via LAN access) ruptions orange network device connected; transfer rate 100 Mbps (The...
  • Page 20 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation ing with PoE in the info box ’Power-over-Ethernet – elegant power supply through the LAN wiring’ →Page 20. By activated DSLoL option, the LAN connector can also be used for con- necting the LANCOM Access Point to a broadband modem.
  • Page 21  ard! For damages caused by inadmissible devices no warranty may be claimed. For the LANCOM L-54 dual Wireless, two LAN sockets can be used for redundant  power supply. The device itself selects the power source to be used. If a power outage causes a switch between power sources, the device reboots so that the power feed is reactivated, if appropriate.

  • Page 22: Connecting The Lancom Access Point

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation Reset-or-boot (standard setting): Press the button briefly to restart the device. Pressing the button for 5 seconds or longer restarts the device and resets the configuration to its factory settings. All LEDs on the device light up continuously.
  • Page 23 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation For information about the installation of PoE see the info box ’Power- over-Ethernet – elegant power supply through the LAN wiring’ →Page 20. DSLoL – If you want to use your access point in DSLoL mode, you can either connect the device directly to the DSL modem (exclusive mode) or to a hub resp.

  • Page 24: Software Installation

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation Use only the supplied power supply unit! The use of the wrong power  supply unit can be of danger to the device or persons.

  • Page 25: Which Software Should I Install

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 2: Installation 2.4.2 Which software should I install? LANconfig is the Windows configuration program for all LANCOM models. WEBconfig can be used alternatively or in addition via a web browser.

  • Page 26: Basic Configuration

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration 3 Basic configuration The basic configuration is conducted with a convenient Setup Wizard that provides step-by-step guidance through the configuration and that requests any necessary information.

  • Page 27: Tcp/Ip Settings

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration Protecting the configuration Wireless LAN details Security settings 3.1.1 TCP/IP settings TCP/IP configuration can be performed in two different ways: Either fully auto- matically or manually. No user input is required if TCP/IP configuration is per- formed automatically.

  • Page 28: Configuration Protection

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration do this you simultaneously specify the address range that the DHCP server will subsequently use for the other devices in the network (provided the DHCP server is activated).

  • Page 29: Settings For The Wireless Lan

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration In the managed mode the LANCOM Wireless Routers and LANCOM  Access Points automatically receive the same root password as the WLAN-Controller, assuming that no root password has been set in the device itself.

  • Page 30: Instructions For Lanconfig

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration sible. In the 5 GHz band the automatic setting, where the LANCOM Access Point uses TPC and DFS to select the best channel is normally sufficient.

  • Page 31: Instructions For Webconfig

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration You also define whether the device can be configured from the local net- work only, or if remote configuration via WAN (i.e.. from a remote net- work) is to be permitted.
  • Page 32 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration LAN already, and whether these two server processes share the assignment in the LAN of IP addresses to symbolic names. WEBconfig accesses the LANCOM either via its IP address, the device name (if configured), or by means of any name if the device has not yet been configured.
  • Page 33 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration If the configuration computer does not retrieve its IP address from the LANCOM DHCP server, it determines the current IP address of the computer...
  • Page 34 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration be reached under name "LANCOM-<MAC address>", e.g. “LANCOM- 00a057xxxxxx”. http://LANCOM-00a05700094A The MAC address on a sticker on the base of the device.  If there is no DNS server in the LAN, or if it is not coupled to the DHCP server, the device cannot be reached via the name.

  • Page 35: Tcp/Ip Settings For Pc Workstations

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 3: Basic configuration 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.
  • Page 36 Manual IP address assignment If IP addresses in a network are statically assigned, then the IP address of the LANCOM is to be set as the standard gateway and DNS server in the TCP/IP configuration of each PC in the LAN.

  • Page 37: Security Settings

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings 4 Security settings Your LANCOM features numerous security functions. This chapter provides you with all of the information you need to optimally protect your device.

  • Page 38: 802.1X / Eap

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings The passphrases for 802.11i or WPA do not have to be changed quite so regularly as new keys are generated for each connection anyway. This is not the only reason that the encryption with 802.11i/AES or WPA/TKIP is...

  • Page 39: Access Control By Mac Address

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings third-party products is assured as LEPS only involves configuration in the access point. An additional security aspect: LEPS can also be used to secure single point- to-point (P2P) connections with an individual passphrase.

  • Page 40: Tips For The Proper Treatment Of Keys And Passphrases

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings Tips for the proper treatment of keys and passphra- By observing a few vital rules on the treatment of keys you can significantly increase the security of encryption techniques.

  • Page 41: Lanconfig Wizard

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings 4.3.1 LANconfig Wizard Mark your LANCOM in the selection window. From the command line, select Extras Setup Wizard. In the selection menu, select the Setup Wizard, Check security settings and confirm the selection with Next.

  • Page 42: Webconfig Wizard

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings 4.3.2 WEBconfig Wizard With WEBconfig you have the option to launch the Check security settings Wizard to check and change any settings. The following values are edited:...
  • Page 43 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings With the access control list (ACL) you can permit or prevent individual cli- ents accessing your wireless LAN. The decision is based on the MAC address that is permanently programmed into wireless network adapters.
  • Page 44 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings Have you activated the firewall? The stateful inspection firewall of LANCOM devices ensures that you local network cannot be attacked from the outside. Activate the firewall in LANconfig under 'Firewall/QoS' on the 'General' tab.
  • Page 45 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings Have you excluded certain stations from accessing the device? A special filter list can be used to limit access to the device's internal func- tions via TCP/IP.
  • Page 46 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 4: Security settings power because the device has been relocated will cause the entire confi- guration to be deleted (for further information see the reference manual). Have you ensured that the reset button is safe from accidental configuration resets? Some devices simply cannot be installed under lock and key.

  • Page 47: Advanced Wireless Lan Configuration

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration 5 Advanced wireless LAN configuration Highly convenient installation wizards are available to help you with the con- figuration of LANCOM Access Points for your wireless LAN.
  • Page 48 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration WLAN module operation The WLAN modules can be operated in various operating modes: As a base station (Access Point mode), the device makes the link between WLAN clients and the cabled LAN.

  • Page 49: Point-To-Point Connections

    Point-to-point connections. 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 —...
  • Page 50 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration How do the antennas have to be positioned to ensure problem-free con- nections? What performance characteristics do the antennas need to ensure suffi-...
  • Page 51 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration 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.
  • Page 52 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration The areas where the waves amplify or cancel themselves out are known as Fresnel zones. Protecting the components employed from the consequences of ...
  • Page 53 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration To ensure that the Fresnel zone 1 remains unobstructed, the height of the antennas must exceed that of the highest obstruction by this radius. The full...

  • Page 54: Antenna Alignment For P2P Operations

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Free-space loss Amplification with Amplification with antenna gain antenna gain ANTENNA ANTENNA Loss through cable, Loss through cable, plugs and lightning plugs and lightning...
  • Page 55 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration The display of signal quality on the LEDs must be activated for the wireless LAN interface (LANconfig: Wireless LAN General Physical WLAN settings Operation).

  • Page 56: Measuring Wireless Bridges

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Are both antennas approximately aligned? The basic P2P connection has to be working before fine-tuning can be performed with the aid of LANmonitor.

  • Page 57: Configuration Of P2P Connections

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration In the 5 -GHz band, the automatic search for vacant WLAN channels can lead to several simultaneous test transmissions from multiple access points, with the result that they do not find each other.
  • Page 58 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Click on the button Physical WLAN settings to open the corresponding WLAN interface and select the tab for 'Point-to-Point'. Activate the suitable point-to-point operation mode here and set the channel selection scheme to either 'Master' or 'Slave'.
  • Page 59 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Please observe that only the MAC addresses of the WLAN cards at the  other end of the connections are to be entered here! Not the access point's own MAC address, and not the MAC addresses from any other interfaces that may be present in the access points.

  • Page 60: Access Points In Relay Mode

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration 5.2.6 Access points in relay mode Access points equipped with two wireless modules can be used to establish wireless bridges across multiple stations. Each wireless module is configured as a 'Master' and then 'Slave' in turn.
  • Page 61 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration When set as P2P Master, the passphrase entered here will be used to check the Slave's authorization to access. When set as P2P Slave, the access point transfers this information to register with the remote site.

  • Page 62: Client Mode

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Configuration with The access list for the matching of MAC addresses to the passphrases (LEPS) WEBconfig or Telnet can be found under WEBconfig or Telnet under the following paths:...

  • Page 63: Client Settings

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration PRINTER WLAN device in client mode ACCESS POINT WLAN device in client mode SERVER ACCESS POINT ACCESS POINT WLAN device in AP mode...

  • Page 64: Set The Ssid Of The Available Networks

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration In 'Scan bands', define whether the client station scans just the 2.4 GHz, just the 5 GHz, or all of the available bands to locate an access point.

  • Page 65: Encryption Settings

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration Under WEBconfig or Telnet the network settings for the logical WLAN interfaces can be found under the following paths: Configuration tool Menu/Table...
  • Page 66 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 5: Advanced wireless LAN configuration For TTLS and PEAP - the EAP/TLS root certificate only; the key is ente- red as a combination username:password. For TLS in addition; the EAP/TLS device certificate including the private key.

  • Page 67: Setting Up Internet Access

    ROUTER GATEWAY The LANCOM provides a central point of Internet access for all of the compu- ters in the LAN. The connection to the Internet provider can be established via the WAN connection which is connected to an ADSL or cable modem. For models not equipped with a WAN connector, a LAN interface is configured as a DSLoL connector and is connected to a compatible ADSL modem.

  • Page 68: The Internet Connection Wizard

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 6: Setting up Internet access In case of flatrate billing you can also set up line polling to monitor the function of the remote site. Apart from that you can opt to keep flatrate connections permanently active ("keep-alive").

  • Page 69: Instructions For Webconfig

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 6: Setting up Internet access 6.1.2 Instructions for WEBconfig Select the 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.

  • Page 70: Options And Accessories

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 7: Options and accessories 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.

  • Page 71: Polarization Diversity

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 7: Options and accessories interaction with the reflected radio waves can cause a drop in signal strength, or even cause it to be cancelled out completely. Transmission quality can be improved with so-called "diversity"...

  • Page 72: Lancom Public Spot Option

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 7: Options and accessories To install an optional AirLancer antenna, switch the device off by unplugging the power cable. Now carefully unplug the two diversity antennas from the back by unscrewing them.
  • Page 73 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 7: Options and accessories Authentication and billing for individual users is implemented with user- friendly Web pages, enabling client PCs with a WiFi-certified wireless card (el.g. AirLancer) and standard Internet browser to go directly online.

  • Page 74: Troubleshooting

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 8: Troubleshooting 8 Troubleshooting In this chapter, you will find suggestions and assistance for a few common dif- ficulties. No DSL connection is established After start-up the router automatically attempts to connect to the DSL pro- vider.

  • Page 75: Unwanted Connections Under Windows Xp

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 8: Troubleshooting Increasing the TCP/IP window size under Windows If the actual transfer rate of a DSL connection is significantly below the fastest rate listed by the provider, there are only a few possible causes (apart from the above-mentioned external factors) which may involve one's own equipment.

  • Page 76: Appendix

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 9: Appendix 9 Appendix Performance data and specifications LANCOM L-54g LANCOM L-54g LANCOM L-54 dual Wireless Wireless Wireless Frequency band 2400 - 2483,5 MHz 2400 - 2483,5 MHz...

  • Page 77: Contact Assignment

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 9: Appendix Contact assignment 9.2.1 Ethernet interface 10/100Base-TX, DSL interface 8-pin RJ45 socket, corresponding to ISO 8877, EN 60603-7 Connector PoE/G PoE/G PoE/-48 V PoE/-48 V 9.2.2...

  • Page 78: Declaration Of Conformity

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Chapter 9: Appendix Declaration 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 directive.

  • Page 79: Index

    LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Index Index Numerics 10/100Base-TX DNS server 100Mbp network Download 802.11i DSL connection 802.11i/ problems establishing the connection 802.1x 802.3af- standard DSLoL Dynamic Frequency Selection Dynamic frequency selection Access point mode...
  • Page 80 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Index Filter Remote configuration IP address Reset switch IP masquerading Reset the toll protection IP router Routing table IP-Router IPSec over WLAN Security Protecting the configuration LAN connection...
  • Page 81 LANCOM L-54g Wireless - LANCOM L-54ag Wireless - LANCOM L-54 dual Wireless Index Turbo Mode Wireless LANs Operating modes WLAN Bands scanned WEBconfig Client mode HTTPS System requirements...

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