Cisco

In our previous series on Cisco IOS Access-lists Part 1 and Part 2 , we covered all the basics of ACL’s and went through a real-world example. In the past, it was not possible to edit an ACL. Now, the impossible is possible with IOS 12.2 or later. In this article, you’ll learn how you…

If someone were to look at your router’s configuration, could they understand what the real purpose of the network connections were, who they connect to, and what to do if the interface is down? If you answered no, then you need to look at using router interface descriptions. What is a router interface description? Router…

Need help configuring a switch port or seeing what MAC address is on what port? David Davis serves up some Cisco switch admin basics.

If you are like me, you have probably heard about Cisco’s Telepresence video conferencing system but probably didn’t realize that it was much more than a regular video conferencing suite. Sure, I had seen Cisco Telepresence on the TV show “24” and it looked pretty neat but I didn’t envision the scope of what is…

If you are used to working with home networking gear you are used to an integrated device that “does it all”. On a home network, you may have one box that is a cable/DSL modem, router, firewall, switch, and wireless access point all in one. It is amazing all the functions they can fit into…

As a network administrator, you must be able to configure your routers to route traffic across the network. Static routes are commonly used on routers to accomplish this. For a network admin, knowing how to use a static route is a requirement. Let’s learn about static routes, and how to properly use them. Static vs….

Many of us use switches every day but never really think about how they work. Whether you are studying to become a CCNA or just want to learn more about how a switch really functions, this article is for you. Hubs vs. Switches Prior to switches, Hubs were the standard for connecting devices on a…

Decimal to binary conversion is an important task to understand in IP addressing and Subnetting. IP addressing is a core functionality of networking today. The knowledge of how to assign an IP address, or determine the network or host ID via a subnet, is vital to any good network engineer. Having a good, solid understanding…

In Basics of Cisco Switch Administration – Part 1, we touched on some of the basic uses of the Cisco Network Assistant (CNA). The CNA is a feature-rich product with many uses. In this article, I’d like to focus on several of the common uses of CNA. Let’s take a look… What is Cisco Network…

Did you know that a Windows Server can act as a router? Even better, did you know that a Windows server could be configured to exchange routes with a Cisco router? In Part 1 of this series, we demonstrated how to configure a Windows 2003 Server to exchange routes with a Cisco router using RIP….