Case study

Navico GoFree: screen-mirroring protocol findings

Navico GoFree records screen-mirroring protocol behavior observed on a Simrad NSS12 evo3 marine display. It maps UDP multicast discovery at 239.2.1.1:2052, the TCP connection on port 6633 that enables video output, and the RTSP /screenmirror endpoint, with small client probes.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 5
Last commit: 2026-04-10
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Requires a compatible GoFree marine display and access to its Wi-Fi network.
Limits: Observations are primarily from a Simrad NSS12 evo3; behavior on other models needs confirmation.
License: MIT License.

Cite

BibTeX

@misc{navico-gofree-protocol-case,
  title = {{Navico GoFree: screen-mirroring protocol findings}},
  howpublished = {\url{https://github.com/ThePhantomPuppet/navico-gofree-protocol}},
  url = {https://github.com/ThePhantomPuppet/navico-gofree-protocol},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/navico-gofree-protocol-case/}}
}

Plain text

Navico GoFree: screen-mirroring protocol findings. https://github.com/ThePhantomPuppet/navico-gofree-protocol (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/navico-gofree-protocol-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · ThePhantomPuppet/navico-gofree-protocol · Revision 0757d0b
docs/protocol-overview.md GitHub · ThePhantomPuppet/navico-gofree-protocol · Revision 0757d0b