Threat Level: green Handler on Duty: Xavier Mertens

SANS ISC: TCP/5201 "targus-getdata" protocol? - SANS Internet Storm Center SANS ISC InfoSec Forums

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TCP/5201 "targus-getdata" protocol?

Does anyone have any information on the "targus-getdata" protocol that uses TCP/5201?

The port is registered to which is also associated with

Is anyone else seeing or blocking unwanted traffic on this port?


69 Posts
This port was reserved for a proprietary protocol develop by "TargusInfo", a company that has since been acquired by Neustar. I doubt the protocol is still used and any traffic you see on the port is likely due to other protocols that happen to use the port.

we have seen no traffic on this port from our DShield sensors recently:…

4473 Posts
ISC Handler
tcp 5201 is also the default port used by iperf3, a bandwidth measurement tool (



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