About

Network Packet Dictionary is a practical reference site for packet analysis and troubleshooting. Pages are organized into three types: protocol overviews, header field definitions, and real-world topics.

The site is intentionally simple: static HTML, Vanilla JS, and pages that can be maintained without mistakes.

What you will find here

Dictionary: what a protocol is and how it behaves
Fields: precise meaning of one header element and typical values
Topics: why an issue happens and how to verify it in captures

Editorial policy

One concept per page
No “Soon” pages with ads
Link to related pages instead of duplicating content