Lancom Systems 1711, 821, 1621 manual Configuration protection, Settings for the DSL connection

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EN

LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN

Chapter 3: Basic configuration

Enable DHCP server?

Disable the DHCP server function in the LANCOM if you would like to have a different DHCP server assign the IP addresses in your LAN.

3.1.2Configuration protection

The password for configuration access to the LANCOM protects the configu- ration against unauthorized access. The configuration of the router contains a considerable amount of sensitive information such as your Internet access information. We therefore strongly recommend protecting it with a password.

The setup wizard for the basic configuration automatically disables remote configuration access via ISDN, thus protecting your configuration against tampering. ISDN remote configuration access can be enabled at any time using the security wizard (see “Have you permitted remote configuration?” on page 69).

3.1.3Settings for the DSL connection

For the WAN connection it may be necessary to enter the transfer protocol being used. The wizard will e.g. automatically enter the correct settings for major DSL providers. You only need to enter the protocol used by your access provider if the wizard does not list your provider.

3.1.4Settings for the ISDN connection

Set up the basic configuration of your ISDN connection if required. You will need the following data:

One or more ISDN MSNs on which the router will accept calls. MSNs are ISDN subscriber numbers that are assigned to you by your telephone pro- vider. They are normally entered without an area code. These numbers are only relevant for the router functions (LAN to LAN coupling, RAS), not for remote configuration and LANCOM VPN Option.

A dialing prefix for access to the public telephone network. This is nor- mally required only when using an ISDN PBX. '0' is the usual prefix. It is used for all outgoing calls.

Finally, you should know whether your telephone provider transmits an ISDN connect-charge pulse. This signal can be used LANCOM for con- nect-charge budgets and the accounting function.

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Contents Lancom 821 ADSL/ISDN Lancom 1621 ADSL/ISDN Lancom 1711 VPN Lancom Systems GmbH, Wuerselen Germany. All rights reserved Preface Security settingsThank you for placing your trust in this Lancom product Model variants Preface Contents Linking two networks Providing dial-up accessInstallation of the MS Windows fax service Sending a fax Sending faxes with LancapiTroubleshooting Security checklistAppendix How does Adsl work? Access to a complete local network LANIntroduction AddressesAll services via a single cable-thanks to the splitter Ideal for Internet surfersADSL-over-ISDN or ADSL-over-POTS? CodeWhich use does VPN offer? Conventional network infrastructure Networking via the Internet Firewall Quality-of-Service / Traffic management Denial-of-Service ProtectionWhat does a router do? At least one for WAN connections Bridgehead to the WANAreas of deployment for routers LAN to LAN coupling via VPN or IsdnWhat can your Lancom do? Remote access to the company network via VPN or IsdnConventional via Isdn WAN connection Configuration Package contents InstallationSystem preconditions Status displays Introducing LancomFront side Meanings of the LEDs Top panelLED remains lit green Flashing Power LED but no connection? Online LED indicates the overall status of all WAN portsData traffic via the Adsl link Connection status of the Adsl linkConnection status of the WAN connection Data traffic via the DSL connectionStatus of the four LAN ports in the integrated switch Separate status display for both Isdn B channelsBack of the unit Hardware installation Adsl connector cable transparent plugs Using the included power adapterSoftware installation Starting Lancom setupWhich software should you install? 1 TCP/IP settings Basic configurationWhich information is necessary? Information required for manual TCP/IP configuration New LAN-fully automatic configuration possibleConfigure manually nevertheless? IP address and netmask for the LancomSettings for the Isdn connection Configuration protectionSettings for the DSL connection Enable Dhcp server?LANconfig Instructions for LANconfigStart up LANconfig by clicking Start Programs Lancom Connect charge protectionComplete the configuration with Finish Instructions for WEBconfig Network without Dhcp serverNetwork with Dhcp server Starting the wizards in WEBconfigOr with a name as discribed above Basic configuration Entering the password in the web browser IP address assignment via a separate Dhcp server TCP/IP settings to workstation PCsIP address assignment via the Lancom default Manual IP address assignmentBasic configuration Does the setup wizard know your Internet provider? Setting up Internet accessAdditional information for unknown Internet providers Additional connection options User name and passwordProtocol PPPoE, Pptp or Plain Ethernet IPoE Dynamic channel bundling Isdn onlyLANconfig Quick access to the setup wizards Tools Setup WizardComplete the configuration with Apply Linking two networks Always configure both sidesSecurity aspects What information is necessary? General informationIsdn Settings for the TCP/IP router DNS access to the remote LAN Settings for the IPX routerExtranet VPN Settings for NetBIOS routing Perform the configuration on both routers, one at a time Ping quick testing for TCP/IP connections Providing dial-up access Which information is required?Coupling Entry Settings for TCP/IP Isdn calling line identity CLISettings for IPX WANDial-up via VPN Settings for the dial-in computerDial-up via Isdn Instructions for LANconfig Instructions for WEBconfig Sending faxes with Lancapi Installation of the Lancom Capi fax modem Lancom CDInstallation of the MS Windows fax service Select the option Printers and Faxes from the control panelSending a fax Send a fax with the MS Windows fax serviceSend a fax with any given office application Sending faxes with Lancapi Security settings wizard Security settingsWizard for LANconfig Wizard for WEBconfig Firewall wizardConfiguration under WEBconfig Security checklistRules Have you activated the Firewall? Have you assigned a password for the configuration?Have you permitted remote configuration? Do you make use of a ’Deny All’ Firewall strategy?Is your saved Lancom configuration stored in a safe place? Have you closed critical ports with filters?No WAN connection is established TroubleshootingProblems with the cabling? DSL data transfer is slowIncreasing the TCP/IP window size under Windows Cable testingUnwanted connections under Windows XP LAN statisticsTroubleshooting Performance data and specifications AppendixATM Adsl interface Contact assignmentPin RJ45 socket ISDN-S0interface Ethernet WAN interface Lancom 1711 VPNPin RJ45 socket, corresponding to ISO 8877, EN Ethernet interfaces 10/100Base-T Configuration interface OutbandCE declaration of conformity Pin mini-DIN socketIndex NumericsInstallation Connection FirmSafe IPX conventions Flat rate IPX router SettingsHardware installation 1TR6 Caller ID Connector cable Configuration port ChannelSecurity aspects Server Setup Specify MSN Power adapter 21, 27NetBIOS LAN to LAN coupling 17, 18, 19, 34Voltage switch WAN data VPN client WAN status Switch Settings Stateful Inspection TelephoneOnline Power System preconditions Connector cable WAN connection
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1621, 1711, 821 specifications

Lancom Systems is a notable player in the networking solutions market, and its range of routers, specifically the 821, 1621, and 1711 models, showcases the company's commitment to delivering robust, high-quality products for various enterprise needs. Each model brings distinct features, making them suitable for different environments and operational demands.

The Lancom 821 is particularly designed for small to medium-sized enterprises (SMEs) requiring reliable internet connectivity and secure networking. This router supports various VPN technologies, ensuring secure data transmission across the organization. Equipped with advanced firewall capabilities, the 821 can handle multiple connections while protecting against potential cyber threats. Its support for IPv6 enhances compatibility with future networks, making it a long-term investment. The device’s manageable architecture allows for remote access and troubleshooting, reducing the need for on-site IT interventions.

On the other hand, the Lancom 1621 is tailored for larger organizations or those with more extensive networking demands. This model offers enhanced throughput and is capable of managing large volumes of traffic without compromising performance. It features a variety of WAN connection options, including DSL, LTE, and fiber, allowing businesses to choose the best solution for their requirements. The 1621 also incorporates sophisticated Quality of Service (QoS) settings, which prioritize critical applications to ensure optimal performance during peak times. Built-in redundancy features enhance reliability, making it an excellent choice for mission-critical applications.

The Lancom 1711 takes networking capabilities a step further, targeting enterprises with even more complex needs. It boasts advanced routing and switching features, making it suitable for enterprise-grade deployments. The 1711 supports enterprise WLAN management, allowing seamless integration with wireless access points. Its robust performance over WAN connections enables the deployment of various real-time applications, such as voice over IP (VoIP) and video conferencing, without latency issues. Security is a top priority, with features including an IPSec VPN and integrated threat detection to safeguard organizational data.

In summary, the Lancom 821, 1621, and 1711 routers serve as versatile tools for businesses, each designed with distinct capabilities to meet specific networking needs. Their strengths lie in their security features, support for various connection types, and reliable performance under heavy loads. With these devices, organizations can ensure that their network infrastructure not only meets current demands but is also poised for future growth.
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