Lancom Systems 1711, 821, 1621 manual Firewall wizard, Wizard for WEBconfig

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

Chapter 8: Security settings

In a next step parameters of the configuration lock like number of failed log-in attempts and the duration of the lock can be adjusted.

Now activate Stateful Inspection, ping-blocking and Stealth mode in the the firewall configuration.

The wizard will inform you when entries are complete. Complete the con- figuration with Finish.

8.1.2Wizard for WEBconfig

Under WEBconfig you have the possibility to run the wizard Security settings to control and change the settings. The following values are handled:

password for the device

allowed protocols for the configuration access of local and remote net- works

the MSN for remote configuration via ISDN

parameters of configuration lock (number of failed log-in attempts and duration of the lock)

8.2The firewall wizard

The LANCOM incorporates an effective protection of your LAN and WLAN when accessing the Internet by its Stateful Inspection firewall and its firewall filters. Basic idea of the Stateful Inspection firewall is that only self-initiated data transfer is considered allowable. All unasked accesses, which were not initiated from the local network, are inadmissible.

The firewall wizard assists you to create new firewall rules quickly and com- fortably.

Please find further information about the firewall of your LANCOM and about its configuration in the reference manual.

8.2.1Wizard for LANconfig

The firewall wizard assists you to create new firewall rules quickly and com- fortably .

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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 Sending faxes with Lancapi Providing dial-up accessInstallation of the MS Windows fax service Sending a fax Linking two networksTroubleshooting Security checklistAppendix Addresses Access to a complete local network LANIntroduction How does Adsl work?Ideal for Internet surfers All services via a single cable-thanks to the splitterCode ADSL-over-ISDN or ADSL-over-POTS?Which 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? LAN to LAN coupling via VPN or Isdn Bridgehead to the WANAreas of deployment for routers At least one for WAN connectionsWhat 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 Online LED indicates the overall status of all WAN ports Flashing Power LED but no connection?Data traffic via the DSL connection Connection status of the Adsl linkConnection status of the WAN connection Data traffic via the Adsl linkSeparate status display for both Isdn B channels Status of the four LAN ports in the integrated switchBack of the unit Hardware installation Using the included power adapter Adsl connector cable transparent plugsStarting Lancom setup Software installationWhich software should you install? 1 TCP/IP settings Basic configurationWhich information is necessary? IP address and netmask for the Lancom New LAN-fully automatic configuration possibleConfigure manually nevertheless? Information required for manual TCP/IP configurationEnable Dhcp server? Configuration protectionSettings for the DSL connection Settings for the Isdn connectionConnect charge protection Instructions for LANconfigStart up LANconfig by clicking Start Programs Lancom LANconfigComplete the configuration with Finish Network without Dhcp server Instructions for WEBconfigNetwork with Dhcp server Starting the wizards in WEBconfigOr with a name as discribed above Basic configuration Entering the password in the web browser Manual IP address assignment TCP/IP settings to workstation PCsIP address assignment via the Lancom default IP address assignment via a separate Dhcp serverBasic configuration Does the setup wizard know your Internet provider? Setting up Internet accessAdditional information for unknown Internet providers Dynamic channel bundling Isdn only User name and passwordProtocol PPPoE, Pptp or Plain Ethernet IPoE Additional connection optionsLANconfig Quick access to the setup wizards Tools Setup WizardComplete the configuration with Apply Linking two networks Always configure both sidesSecurity aspects General information What information is necessary?Isdn 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 Which information is required? Providing dial-up accessCoupling Entry Isdn calling line identity CLI Settings for TCP/IPWAN Settings for IPXDial-up via VPN Settings for the dial-in computerDial-up via Isdn Instructions for LANconfig Instructions for WEBconfig Sending faxes with Lancapi Lancom CD Installation of the Lancom Capi fax modemSelect the option Printers and Faxes from the control panel Installation of the MS Windows fax serviceSending 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 Firewall wizard Wizard for WEBconfigConfiguration under WEBconfig Security checklistRules Do you make use of a ’Deny All’ Firewall strategy? Have you assigned a password for the configuration?Have you permitted remote configuration? Have you activated the Firewall?Have you closed critical ports with filters? Is your saved Lancom configuration stored in a safe place?DSL data transfer is slow TroubleshootingProblems with the cabling? No WAN connection is establishedLAN statistics Cable testingUnwanted connections under Windows XP Increasing the TCP/IP window size under WindowsTroubleshooting Appendix Performance data and specificationsATM Adsl interface Contact assignmentPin RJ45 socket ISDN-S0interface Ethernet WAN interface Lancom 1711 VPNPin RJ45 socket, corresponding to ISO 8877, EN Pin mini-DIN socket Configuration interface OutbandCE declaration of conformity Ethernet interfaces 10/100Base-TNumerics IndexConnector cable Configuration port Channel FirmSafe IPX conventions Flat rate IPX router SettingsHardware installation 1TR6 Caller ID Installation ConnectionLAN to LAN coupling 17, 18, 19, 34 Power adapter 21, 27NetBIOS Security aspects Server Setup Specify MSNSystem preconditions Connector cable WAN connection Settings Stateful Inspection TelephoneOnline Power Voltage switch WAN data VPN client WAN status Switch
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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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