Last port of the 3322-3325 Active Networks block; the registration is the whole public record.
3325 closes IANA's active-net range, registered to Bob Braden for the DARPA Active Networks programme. As with the other three ports in the block there is no protocol document, no reference implementation and no measurable deployment — the name exists in /etc/services and nowhere else that matters. Treat a scanner's active-net on 3325 as a lookup of the port number, not as identification of the service.
Expose with care
Unknown service by default: fingerprint what is listening before deciding on exposure.
$ nc -vz TARGET 3325Seen 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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Corrections or a missing port? Reply @rimrocksystems.