I wrote a similar article for the Knowledge Base of the Kurento project I'm maintaining: https://doc-kurento.readthedocs.io/en/latest/knowledge/nat.html https:

I wrote a similar article for the Knowledge Base of the Kurento project I'm maintaining: https://doc-kurento.readthedocs.io/en/latest/knowledge/nat.html https://doc-kurento.readthedocs.io/en/latest/knowledge/nat.h... Visualization is the more powerful tool to help readers conceptualize the text, but it's also difficult to get right. After some experimentation with diagramming tools, I ended up going for an ASCII-based view. It's important to not overlook the section "Types of NAT in the Real World", which is just a quote from the relevant part of Wikipedia, to essentially say that in practice none of these theoretical models are perfectly found in real-world equipment. Still a useful differentiation to learn, but one shouldn't expect network equipment to behave as one of the described categories 100% of the time.