Positrex UDP dialect on Traccar port 5252 — second UDP long-tail beside GPSMTA 5038.
UDP 5252.
Also UDP, but port 5038 and another decoder.
None on PositrexProtocol.
ThinkPower is TCP binary 5228.
Treat as binary/datagram — capture pcaps.
Positrex joins GPSMTA in the small UDP club. Traccar’s stock listener is UDP 5252 into PositrexProtocolDecoder. Operators who cloned a GPSMTA firewall object for 5038 still need a distinct object for 5252 and must not assume the payloads are interchangeable.
A TCP SYN toward 5252 is a configuration smell. Fix transport before rewriting APN for the third time.
Ambiguous 'UDP GPS' is not enough.
Include cloud security groups.
udp port 5252.
Wrong UDP grammar = quiet decode.
UDP evidence ages badly if not captured.
Setup
Use these rows only after confirming the tracker password and SIM settings. Command families can differ between brands even when they use the same protocol.
Setup guidance
Traxelio can receive this model, but public SMS setup depends on SIM or model settings.
Reference
| Parameter | Value |
|---|---|
| Port |
5252
|
All Models
Start with the strongest matches, then use pagination or brand pages for the full compatibility list.
Switch to UDP test clients.
Actually GPSMTA firmware — relabel.
Adjust interval per carrier NAT timers.
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FAQ
Because 5038≠5252 and decoders differ — collapsing them recreates thin-shell cannibalization.
PositrexProtocolDecoder.