Network security relies heavily on passwords. Cisco routers use passwords to ensure that only "trusted" users can perform certain services. In this Daily Drill Down, Todd Lammle takes you on a journey ...

If you're running a small business with more than one computer, routers are usually a necessity. Routers provide small businesses with added security, a link between computer systems and extra ...

Previous articles (Part one, Part two) in this series on implementing VPN gateways using Cisco routers discussed the IPsec protocol and basic IPsec VPN connection models. Now we'll learn how to ...

The Cisco RV180W Wireless-N Multifunction Router ($246 MSRP) makes it easy to set up a firewall, a VPN server, a router, and a wireless network with a single, compact box. The company also offers the ...

Cisco Access Lists allow businesses to increase system security by defining exactly which devices are allowed to access network resources. Each Access List comprises a series of entries, with each ...

While ICMP is required for IP network traffic redirection and pinging hosts on your LAN or WAN, ICMP can also pose a security concern. David Davis tells you about the basics of ICMP and how to filter ...