Lancom Systems 3550 manual Have you activated the IP masquerading?

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LANCOM 3550 Wireless

Chapter 7: Security settings

Have you activated the IP masquerading?

IP masquerading is the hiding place for all local computers for connection to the Internet. Only the router module of the unit and its IP address are visible on the Internet. The IP address can be fixed or assigned dynami- cally by the provider. The computers in the LAN then use the router as a gateway so that they themselves cannot be detected. The router separates Internet and intranet, as if by a wall. The use of IP masquerading is set individually for each route in the routing table. The routing table can be found in the LANconfig in the 'IP router' configuration section on the 'Routing' tab.

Have you closed critical ports with filters?

The firewall filters of the LANCOM Router devices offer filter functions for individual computers or entire networks. Source and target filters can be set for individual ports or for ranges of ports. In addition, individual pro- tocols or any combinations of protocols (TCP/UDP/ICMP) can be filtered. It is particularly easy to set up the filters with LANconfig. The 'Rules' tab under 'Firewall/QoS' can assist you to define and change the filter rules.

Have you excluded certain stations from access to the router?

Access to the internal functions of the devices can be restricted using a special filter list. Internal functions in this case are configuration sessions via LANconfig, WEBconfig, Telnet or TFTP. This table is empty by default and so access to the router can therefore be obtained by TCP/IP using Tel- net or TFTP from computers with any IP address. The filter is activated when the first IP address with its associated network mask is entered and from that point on only those IP addresses contained in this initial entry will be permitted to use the internal functions. The circle of authorized users can be expanded by inputting further entries. The filter entries can describe both individual computers and whole networks. The access list can be found in LANconfig in the 'TCP/IP' configuration section on the 'General' tab.

Is your saved LANCOM configuration stored in a safe place?

Protect the saved configurations against unauthorized access in a safe place. A saved configuration could otherwise be loaded in another device by an unauthorized person, enabling, for example, the use of your Inter- net connections at your expense.

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Contents Lancom 3550 Wireless Lancom Systems GmbH, Wuerselen Germany. All rights reserved Thank you for placing your trust in this Lancom product Security settingsThis documentation was compiled … Further server services DHCP, DNS, charge management Important instruction that should be followed Contents Point-to-point connections Setting up Internet accessSetting up the Umts profile Radio channel regulations for WLANs Options and accessoriesAppendix Operation modes of Wireless LANs and base stations What is a Wireless LAN?Introduction Which hardware to use?Last mile via UMTS/HSPDA Advantages of the UMTS/HSPDA solutionInternet Mobile conference roomUMTS/HSPDA Backup Internet connection over DSL Applications What can your Lancom Router do?Wireless LAN Lancom System preconditions InstallationPackage contents Status display Status displays, interfaces an hardware installationMeanings of the LEDs Front sideGreen Red Blinking Time or connect-charge reached LED remains lit greenExpert Configuration Setup Charges-module Flashing Power-LED but no connection?Nal wireless network card is not indicated on this display Wireless link display can assume four different conditionsBack of the unit Hardware installation Software installation Plexity considerably Which software should you install? Starting Lancom setupInstallation Which information is necessary? Basic configuration1 TCP/IP settings Information required for manual TCP/IP configuration New LAN-fully automatic configuration possibleConfigure manually nevertheless? Settings for the Wireless LAN Configuration protectionSelection of a radio channel Settings for the DSL connectionConnect charge protection LANconfig Start up LANconfig by clicking Start Programs LancomComplete the configuration with Finish Instructions for WEBconfigNetwork with Dhcp server Network without Dhcp serverOr with a name as discribed above Starting the wizards in WEBconfigWEBconfig main menu will be displayed Basic configuration Entering the password in the web browser TCP/IP settings to workstation PCsManual IP address assignment IP address assignment via the Lancom Router defaultIP address assignment via a separate Dhcp server Setting up Internet access LANconfig Quick access to the setup wizards Instructions for LANconfigBar, select Tools Setup Wizard Setting up Internet access Internet access Setting up the Umts profileSetting up the Umts profile Setting up the Umts profile VPN site coupling Setting up the Umts profile Choosing the mobile telephone network Other settingsActivate UMTS/GPRS profile UMTS/HSPDA only or automatic UMTS/HSPDA/GPRS selection Set up a time limit Point-to-point connections Configuration with LANconfig Configuration tool Menu/Table Security for point-to-point connections Access points in relay modeEncryption with 802.11i/WPA Connections under the following pathsConfiguration area Wlan Security on the 802.11i/WEP tab Leps for P2P connections Found under WEBconfig or Telnet under the following pathsClosed network Security settingsSecurity for the Wireless LAN Lancom Enhanced Passphrase Security Access control via MAC addressEncryption of the data transfer  ensure that you have a secure connection 5 802.1x / EAPStandard WEP encryption IPSec over Wlan Tips for handling keysMand bar Extras Setup Wizard Security settings wizardWizard for LANconfig Firewall wizard Wizard for WEBconfigRules Security checklistConfiguration under WEBconfig Have you permitted remote configuration? Have you assigned a password for the configuration?Have you assigned a password to the Snmp configuration? Have you activated the Firewall?Have you closed critical ports with filters? Have you activated the IP masquerading?Security settings Security settings Antenna Diversity Options and accessoriesOptional Lancom Wireless Router antennas Lancom Public Spot Option Installation of AirLancer Extender antennasRadius PIN Handling TroubleshootingMenü/Tabelle Has the correct transfer protocol been selected? Problems with the cabling?You can monitor and correct the protocol settings under Increasing the TCP/IP window size under Windows DSL data transfer is slowUnwanted connections under Windows XP Appendix Performance data and specificationsWAN interface, 10/100base-TX Contact assignmentLAN interface, 10/100base-TX Declaration of conformity Radio channel regulations for WLANs Numerics Node/hub switch Optional antennas Options and accessories Connector cable LAN connectionRelay function Remote configuration Reset LAN Link LAN Rx/Tx Power WAN Link WAN Status Wireless LinkWork Incorrect PIN WAN connector WEBconfig PasswordPIN handling Time limit 15, 59

3550 specifications

The Lancom Systems 3550 is a robust and versatile router designed to meet the demanding connectivity needs of modern networking environments. It is particularly well-suited for enterprises seeking to enhance their network performance, reliability, and security. This device combines advanced features with cutting-edge technologies to provide a comprehensive networking solution.

One of the standout features of the Lancom Systems 3550 is its support for various WAN technologies. It supports fiber, DSL, and LTE connections, ensuring seamless internet access regardless of the available infrastructure. This versatility allows businesses to choose the optimal connection type for their specific needs and easily adapt to changing circumstances.

In terms of voice and data capabilities, the 3550 is equipped with integrated VoIP functionality. This feature enables companies to implement Voice over IP solutions, reducing telecommunication costs while improving call quality. The router supports multiple concurrent voice channels, making it an ideal choice for businesses with significant communication requirements.

Security is paramount in today’s digital landscape, and the Lancom Systems 3550 does not disappoint. It includes advanced firewall features and supports VPN technologies, enabling secure remote access for employees and partners alike. With support for SSL and IPSec VPNs, businesses can ensure that sensitive data remains protected, regardless of whether employees are working in the office or remotely.

Another significant characteristic of the 3550 is its high-performance capabilities. It is designed to handle a high volume of data traffic without compromising performance. Equipped with advanced traffic management tools, the router can prioritize essential services, ensuring that critical applications receive the bandwidth they need, even during peak usage times.

Additionally, the device offers robust monitoring and management features. Network administrators can utilize SNMP, Syslog, and other management protocols to gain real-time insights into performance metrics and troubleshoot issues proactively. The intuitive user interface simplifies configuration and management, allowing IT staff to focus on other pressing tasks.

Scalability is also a key advantage of the Lancom Systems 3550. It provides options for expansion and can be integrated seamlessly with other devices in the Lancom ecosystem. This flexibility allows organizations to grow their networks without the need for significant overhauls.

In summary, the Lancom Systems 3550 is an ideal solution for organizations looking to enhance their networking capabilities. With its support for multiple WAN technologies, integrated security features, high performance, and robust management tools, it stands out as a reliable choice for modern enterprises. Whether for data communication or voice solutions, the 3550 ensures optimized performance, security, and scalability in one comprehensive package.
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