I got this question the other day, and I thought I’d make something of it.
“What is a VLAN?”
And more importantly…
Do you know of a good tutorialÂ / tool / game that I can use to understand vlans?
Sure do, GNS3.Â So in this series as I know I’ll have to break it up as it’s going to be a LOT of images, I’m going to go over the installation of GNS3 on Windows (I’m not interested in obsolete package versions on whatever distro of the minute is the fancy in Linux world), I’ll go over how to use QEMU to install a Windows NT VM, go over how networking works with a simple hub, then install two switches, a trunk connection, and show how to observe the VLAN tagging in action.Â Then add in other VM’s and more VLANs and then go over bridging vs routing.
I’m going to run everything on my computer.Â I’m not going to get into slave machines, or even wondering why they don’t just launch multiple instances of dynamips where needed.Â Or even what capabilities there are or even at the moment trying to force my MinGW Dynamips into the project.
It’ll pick a port and host binding.Â It’ really doesn’t matter too much, maybe you want it for a proper LAN connection.Â again I’m focused on using this as a self contained thing so the default option ought to work.
And with that said we can now move onto configuring a QEMU template for Windows NT (part 2).