NBAR, also known as Network Based Application Recognition is an invaluable tool that many people do not know exists or simply just don’t use it enough. As the name suggests, NBAR reads packets that flow through a router and “recognises” the types of applications that are sending the packets. Examples of applications that can be recognised inclu...
For those of you who have never heard of GNS3 before, you are in for a treat! What it does is allow you to run multiple routers on your computer in a virtualised environment, and, because it uses real Cisco IOSes you are not limited to a short group of commands as you are when using simulators, you actually have access to the entire command tre...
Hello and welcome to my blog. I know what you are thinking, “not another Cisco Blog!”, but this one will be different, I promise :) The point of this blog is to patch up the holes that other blogs/websites leave in the information that they provide. While researching topics in the past, I have found on more than a few occasions that some sites...