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Broadband Routers and Firewalls

Chapter Description

Want to take advantage of the increased speed and better functionality that a broadband connection provides, but need to ensure that your system is as secure as possible? This sample chapter, from the book Firewall Fundamentals, explains how routers and firewalls work and offers specific tips for setting up Linksys equipment.

From the Book

Firewall Fundamentals

Firewall Fundamentals

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Linksys broadband routers provide a simple, NAT-based packet-filtering router solution (some of which include stateful packet inspection) for small office environments as well as for home-based networks and users. Although some broadband router models lack the robustness of stateful packet-inspecting firewalls and lack granularity for configuring port forwarding, you can use them in simple environments where the security risk does not justify a substantial investment. If you require granular filtering rules, or if you require more advanced filtering mechanisms than simple NAT and port forwarding, you should consider implementing a more advanced firewall such as the Cisco Secure PIX Firewall, Microsoft ISA Server, or NetFilter over Linux.