Lancom Systems 1621, 821, 1711 manual Settings for TCP/IP, Isdn calling line identity CLI

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EN

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

Chapter 6: Providing dial- up access

The ISDN calling line identity (CLI)

The ISDN caller ID—also known as CLI (Calling Line Identity)—this is the telephone number of the caller which is transmitted to the participant receiving the call. As a rule, it consists of the country and area codes and an MSN.

The CLI is well-suited for authentication purposes for two reasons: it is very difficult to manip- ulate, and the number is transferred free of charge via the ISDN control channel (D-channel).

6.1.2Settings for TCP/IP

Each active RAS user must be assigned an IP address when using the TCP/IP protocol.

 

LAN of the head office.

 

IP: 10.0.1.0

 

Remote

 

workstation

 

IP:

 

10.0.1.101

 

VPN or ISDN

 

connection

 

ISDN adapter

10.0.1.100

User: 'SAMPLE'

(0123) 123456

(0123) 777888

This IP address can be permanently assigned when setting up a user. However, it is simpler to let the LANCOM automatically assign free IP addresses to users when they dial in. In this case you only need to specify the IP address range that the LANCOM should use for RAS users.

During both manual and automatic IP address assignment, please ensure that only free addresses from the address range of your local network are used. In our example, the IP address '10.0.1.101' will be assigned to the PC when con- necting.

This IP address makes the computer a fully-fledged member of the LAN: with the appropriate rights, it can access all of the other devices in the LAN. The same applies in the other direction as well: computers in the LAN will also be able to access the remote machine.

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Contents Lancom 821 ADSL/ISDN Lancom 1621 ADSL/ISDN Lancom 1711 VPN Lancom Systems GmbH, Wuerselen Germany. All rights reserved Thank you for placing your trust in this Lancom product Security settingsPreface Model variants Preface Contents Providing dial-up access Installation of the MS Windows fax service Sending a faxLinking two networks Sending faxes with LancapiAppendix Security checklistTroubleshooting Access to a complete local network LAN IntroductionHow does Adsl work? 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 What does a router do? Denial-of-Service ProtectionQuality-of-Service / Traffic management Bridgehead to the WAN Areas of deployment for routersAt least one for WAN connections LAN to LAN coupling via VPN or IsdnConventional via Isdn Remote access to the company network via VPN or IsdnWhat can your Lancom do? WAN connection Configuration System preconditions InstallationPackage contents Front side Introducing LancomStatus displays LED remains lit green Top panelMeanings of the LEDs Flashing Power LED but no connection? Online LED indicates the overall status of all WAN portsConnection status of the Adsl link Connection status of the WAN connectionData traffic via the Adsl link 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? Which information is necessary? Basic configuration1 TCP/IP settings New LAN-fully automatic configuration possible Configure manually nevertheless?Information required for manual TCP/IP configuration IP address and netmask for the LancomConfiguration protection Settings for the DSL connectionSettings for the Isdn connection Enable Dhcp server?Instructions for LANconfig Start up LANconfig by clicking Start Programs LancomLANconfig Connect charge protectionComplete the configuration with Finish Instructions for WEBconfig Network without Dhcp serverOr with a name as discribed above Starting the wizards in WEBconfigNetwork with Dhcp server Basic configuration Entering the password in the web browser TCP/IP settings to workstation PCs IP address assignment via the Lancom defaultIP address assignment via a separate Dhcp server Manual IP address assignmentBasic configuration Additional information for unknown Internet providers Setting up Internet accessDoes the setup wizard know your Internet provider? User name and password Protocol PPPoE, Pptp or Plain Ethernet IPoEAdditional connection options Dynamic channel bundling Isdn onlyComplete the configuration with Apply Tools Setup WizardLANconfig Quick access to the setup wizards Security aspects Always configure both sidesLinking two networks What information is necessary? General informationIsdn Settings for the TCP/IP router Extranet VPN Settings for the IPX routerDNS access to the remote LAN 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 Isdn Settings for the dial-in computerDial-up via VPN 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 panelSend a fax with any given office application Send a fax with the MS Windows fax serviceSending a fax Sending faxes with Lancapi Wizard for LANconfig Security settingsSecurity settings wizard Wizard for WEBconfig Firewall wizardRules Security checklistConfiguration under WEBconfig Have you assigned a password for the configuration? Have you permitted remote configuration?Have you activated the Firewall? 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?Troubleshooting Problems with the cabling?No WAN connection is established DSL data transfer is slowCable testing Unwanted connections under Windows XPIncreasing the TCP/IP window size under Windows LAN statisticsTroubleshooting Performance data and specifications AppendixATM Pin RJ45 socket Contact assignmentAdsl interface Pin RJ45 socket, corresponding to ISO 8877, EN Ethernet WAN interface Lancom 1711 VPNISDN-S0interface Configuration interface Outband CE declaration of conformityEthernet interfaces 10/100Base-T Pin mini-DIN socketIndex NumericsFirmSafe IPX conventions Flat rate IPX router Settings Hardware installation 1TR6 Caller IDInstallation Connection Connector cable Configuration port ChannelPower adapter 21, 27 NetBIOSSecurity aspects Server Setup Specify MSN LAN to LAN coupling 17, 18, 19, 34Settings Stateful Inspection Telephone Online PowerVoltage switch WAN data VPN client WAN status Switch 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.