Introduction to eConfigs GNS3 CCIE Routing & Switching Labs v4.0

eConfigs GNS3 CCIE labs are based on Cisco’s CCIE Routing and Switching Lab v4.0 Blueprint. There are 10 main sections with 250 total topics.  Follow the instructions in my GNS3 posts to get your environment configured properly.  From the CCIE Labs page you can download GNS3 CCIE lab topologies and follow along with the tutorials […]


Test your GNS3 configuration

I thought it would be helpful to provide an overview of my GNS3 installation so you can modify your environment accordingly and make it function properly when using eConfigs GNS3 lab topologies. Depending on your install, you may need to modify the .net files to set the correct path. Computer Settings – eConfigs GNS3 labs […]


How to unpack your GNS3 IOS binary images

Unpacking GNS3 IOS binary images is accomplished using a few commands in the DOS prompt. My IOS images are stored in the folder C:\GNS3\IOS and that’s the directory I will be referencing below. You should have at least one IOS image that ends with the .bin extension stored in your IOS folder. The process is […]


GNS3 Error Troubleshooting

When configuring GNS3 you may run into errors from time to time.  This post covers some of the more common errors in GNS3 and how to fix them. GNS3 is a free, open source network simulation tool you can load on your PC to run Cisco router simulations. When installing and running GNS3 you will […]


GNS3 Overview and Installation

If you’re building a Cisco certification lab I highly recommend using GNS3. You will save both time and money. You can build a number of different lab topologies depending on the exam you’re preparing for. I used to build labs from routers and switches that I bought on eBay, but now that’s old news. Hands […]


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