Teaching NAT in CCNA4

Recently as I was preparing to teach CCNA4 chapter 5 on NAT (Network Address Translation), I decided to put additional information in the introduction to draw the students attention to the state of IPv4 particularly in our region and country specifically. This would then set the basis for me to introduce NAT and its purpose as an immediate solution to IPv4 address exhaustion.

Here are some links I found in my research that I thougth would be helpful to other instructors who are preparing material for teaching.

Source: Internet Society IPv6 introduction course screenshot.

• Allocation of IP addresses by country - You can find your country and extract the information needed to give your students an overview of the number of addresses allocated by IANA to your country.

• Major IP Address blocks - This site gives you blocks of allocated addresses but does not indicate which ISP uses what block, the next link does show you further info

• Gateway information and address blocks by ISP's in your country - this is a very useful site as it gives you additional info about your country's gateway as well as the block allocations to ISPs that operate in your country.

Page 2 of my introduction slide showing the stats of IP address allocation in PNG

I hope these sites will help you. I added a single slide on the status of IPv4 allocations of PNG in the introduction of Chapter 5 to give the student an idea of why NAT is important for the short term and also where IPv6 comes in.Feel free to comment if you have some links or resources you think will also add to this list to help us as instructors.
Cheers.

Source: http://ipinfo.io/AS17828#details