Network Packet Dictionary

Network Packet Dictionary

This site explains network protocols in a dictionary format. Each page focuses on one concept only: protocol overviews, header field meanings, or troubleshooting topics. The goal is practical understanding for Wireshark and real-world debugging.

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Start here

  • Protocol Dictionary — protocol overviews by layer
  • Fields — single header element meanings (TTL, SYN, Window...)
  • Topics — phenomena and troubleshooting flows
  • Tools — small helpers for packet work

Site rules

  • One concept per page
  • No duplicate explanations — link instead
  • Short pages keep ads OFF
  • Everything is static HTML + Vanilla JS