Comments on: NAT Terminology

By: Ed Harmoush

Ed Harmoush — Tue, 02 Feb 2021 17:41:51 +0000

In reply to Mohsin Shafique. This is probably just semantics. My reasoning was all translations affect the L3 header, and some also affect the L4 header. Meaning everything does at least a NAT, and some NAT's also do a PAT. Either way, the "subset" analogy is not significant, as long as you understand NAT is changing the L3 header, and PAT is changing the L4 header (in addition to the L3 header).

By: Mohsin Shafique

Mohsin Shafique — Mon, 24 Jun 2019 07:09:23 +0000

“You could consider PAT as a subset of NAT” wouldn’t NAT be a subset of PAT because PAT also includes port translation at L4 which NAT does not?

By: Ed Harmoush

Ed Harmoush — Fri, 07 Sep 2018 16:22:39 +0000

In reply to Alex. Neither of these images are an illustration of Dynamic NAT. =) The dedicated article on Dynamic NAT has multiple illustrations though.

By: Alex

Alex — Fri, 07 Sep 2018 12:42:03 +0000

In reply to Alex. Of course after posting I could see how I misinterpreted the image, never mind.

By: Alex

Alex — Fri, 07 Sep 2018 12:40:39 +0000

Is the image illustrating dynamic NAT correct? It doesn’t look like the router changes the ip or port allthough it says so in the text. Or am I missunderstanding something?