Azure Advanced Networking

Previously, I wrote about setting up hybrid networks utilizing AWS and GNS3 as a way to lab out and get familiar with hybrid network concepts and technology. Recently, I’ve been digging into Azure and decided to perform a bake-off, of sorts, between setting up the exact same type of topology discussed in my blog post on AWS Advanced Networking – Part 2 but with Microsoft Azure.

To recap: The general idea is to connect a cloud virtual network back to a GNS3 network hosted on your local workstation/laptop. The GNS3 network simulates an on-premises environment from where you would normally host your local services, such as active directory or perhaps a web server. The configuration notes and scripts for this lab can be found on my corresponding GitHub repository.

In this tutorial, I’ll perform a walk through, and a general comparison to performing the same task in AWS for how to connect your GNS3 lab topology to Microsoft Azure. To start, let’s take a look at the reference architecture for what we are about to build:

Figure 1. The Reference Architecture
Continue reading Azure Advanced Networking

AWS Advanced Networking – Part 2

In this walk-through, we’ll look at forming a hybrid cloud architecture utilizing an AWS VPC and a mock “On-Premise” site, connecting the two via a site-to-site VPN. In my first post on this topic (Part 1), we leveraged another VPC to mimic the on-prem environment utilizing a Cisco Cloud Service Router, linking the two via a AWS VPN Gateway and an AWS Customer Gateway. In this post, we’ll be performing the exact same actions on the AWS side; however, to mimic the “on-prem” side, we won’t use another AWS VPC. This time, we’ll use GNS3 on your local computer to form a site-to-site VPN from your GNS3 topology to the AWS VPC. In this setup, there are a few advantages. First, flexibility: you’ll be able to connect any topology you dream up in GNS3 to an AWS VPC to truly test out complex routing and switching connectivity. Second, lower cost for testing; in this case, you’ll only burn $0.05 per hour for the VPN connection in AWS, instead of $0.096 per hour for both the VPN and CSR running. So with that…

Continue reading AWS Advanced Networking – Part 2

Setup a GNS3 Server on AWS EC2

In this video, we’ll walk through the processing of setting up a GNS3 server on AWS, which you can access anywhere and scale to your needs.

Here’s the commands we’ll use in this configuration:

cd /tmp

curl >

bash --with-openvpn --with-iou --with-i386-repository