David’s Cisco Networking Blog:

Cisco


July 20, 2008  9:01 PM

5 Cisco IOS Terms that you should know



Posted by: David Davis
CCNA, Cisco

When preparing for your Cisco CCNA or just learning the IOS, there are a number of terms that you need to know. Here are 5 of them: 1. Administratively Down – One possible interface on a Cisco router. 2. Assignable IP address – An IP address that can be...

July 19, 2008  8:57 PM

Using Text Capture in HyperTerminal to backup your Cisco IOS configuration



Posted by: David Davis
CCNA, Cisco

While you can download your Cisco IOS configuration using TFTP, this requires networking to be configured and operational. Another alternative is to use HyperTerminal's text capture to backup your configuration. Let's find out how... Here is how to use it, step by step: a. In the...


July 17, 2008  8:53 PM

Three Cisco IOS Tips…



Posted by: David Davis
CCNA, Cisco

I commonly get questions from junior admins about the Cisco IOS. Here are 3 tips that I came up with: 1. How do you find available options on a command? (get help) Use the ?. Example: Options on an interface command: R1# show i? Or R1#: show interfaces ? 2....


July 15, 2008  8:48 PM

What is Cisco doing to go Green?



Posted by: David Davis
Cisco, Green

Cisco recently announced that they will reduce absolute greenhouse gas emissions by 25% by the year 2012. Jim Sullivan, director, U.S. Environmental Protection Agency Climate Leaders program quotes, “Looking at the high-tech industry in general, data center energy use is rapidly increasing -...


June 30, 2008  9:11 AM

Understand the OSI model to become a better Cisco troubleshooter



Posted by: David Davis
Cisco

While the OSI Model may seen like some useless & arcane topic that you only study to get your CCNA, I believe it is very valuable in understanding how networks work and how to troubleshoot them. In one of my most recent articles, I cover the OSI model and explain how you can use it to better...


June 30, 2008  8:50 AM

How to properly secure your Cisco router with passwords



Posted by: David Davis
Cisco, Password

Just published, my most recent article covers, step by step, how to secure your Cisco router using passwords. I start off with the different levels of the Cisco IOS and the different passwords that are available. Then, I move on to show you exactly how to configure passwords in the Cisco IOS to...


June 29, 2008  10:15 PM

Get your motion moving with Cisco Motion



Posted by: David Davis
Cisco

Did you see my blog on MSE? Well, guess what, here’s another use for it. I was reading the Cisco news recently and came across this article on Cisco Motion. It’s really just a way to integrate our ipods and other mobile devices. Cisco's Motion approach...


June 29, 2008  4:43 PM

Cool Subnetting Tricks with Variable Length Subnet Mask



Posted by: David Davis
CCNA, Cisco, IP Subnetting / VLSM

vlsm.jpgI read a great article covering subnetting tricks and VLSM by


June 28, 2008  10:13 PM

What is the MSE? (No it’s not another Microsoft Certification)



Posted by: David Davis
Cisco

Mobility Services Engine (MSE) is what Cisco is calling it. Cisco has designed an appliance that will collect all of the different data environments and feed it to other applications. What does that mean to me? The MSE uses this data for jobs like rogue radio detection, and shares it with...


June 28, 2008  4:42 PM

Cisco CCNA – Static & RIP Routing videos available for free



Posted by: David Davis
CCNA, Cisco, Videos

Train Signal Training.com has recently made available 6 free videos that cover how to configure Cisco IOS static routing and RIP routing. These videos are by CCIE, Chris Bryant, who has an excellent teaching style. I recommend these videos to anyone who is preparing for their CCNA or the routing...


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