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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Lancom Systems 3550 manual Have you activated the IP masquerading?, Have you closed critical ports with filters?
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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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