Project Notes

Zte F689 Bridge Mode Exclusive Apr 2026

The ZTE F689 is a widely distributed fiber gateway used by ISPs for FTTH connections. For advanced home networks—where users want to run their own router, separate firewall, or a routed network with full control—placing the ZTE F689 into bridge mode (or otherwise disabling its routing/NAT functions) is a common requirement. This column explains what “bridge mode exclusive” means in practice, why you might want it, the typical methods for achieving it on the F689, key pitfalls, and practical alternatives.

About LEAP

LEAP is my personal collection of electronics projects - usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting.

Projects are often inspired by things found wild on the net, or ideas from the many great electronics podcasts and YouTube channels. Feel free to borrow liberally, and if you spot any issues do let me know or send a pull-request.

NOTE: For a while I included various scale modelling projects here too, but I've now split them off into a new repository: check out LittleModelArt if you are looking for these projects.

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Some Other Sites

LittleModelArt my collection of scale modelling, miniatures and other art projects LittleCodingKata my notes and test code on software development topics and tools My Personal Blog occasional ramblings that don't belong anywhere else