Motorola Solutions' Customer Programming Software for Radio Management — TCP service, UDP discovery.
IANA assigned 8675 to Motorola Solutions in March 2012: msi-cps-rm on TCP for "Customer Programming Software for Radio Management", and msi-cps-rm-disc on UDP for its discovery counterpart. CPS is the Windows tool technicians use to read and write codeplugs on two-way radios, and Radio Management is its fleet-scale server version. The protocol is proprietary and undocumented publicly. You would see this on a radio-shop workstation or an RM server, not on general infrastructure; Nmap rates it open on about 0.015% of hosts.
Expose with care
This programs radio fleets — encryption keys and talkgroup configuration included. Keep it on the radio management LAN; nothing about the protocol is public enough to defend it on an open network.
$ sudo lsof -nP -iTCP:8675 -sTCP:LISTENSeen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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