Mechanism for finding own specific devices in the lan

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A manufacturer of energy controllers, for example, that are integrated into the LAN can find its devices via its own software. This list contains only its own devices.

I would like to implement this mechanism in my own devices in order to be able to find them on the network via my own software.

I don't like the idea of monitoring a specific port. Is there a mechanism in the network protocol or something else that can be used?

I want to do this via c++

What I have tried:

I searched the internet, but cant find the right answer. I tried it over the keywords "identify device" "lan" "network"

Posted 1-Jan-21 21:58pm

Wickinger38

Updated 2-Jan-21 7:48am

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3 solutions

Solution 3

In addition to the other suggestions: another option would be using the ONVIF protocol[^] although this is mainly aimed at network video products.

Posted 2-Jan-21 7:48am

RickZeeland

Updated 2-Jan-21 7:49am

v2

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KarstenK · Accepted Answer · 2021-01-01T23:09:00

Solution 1

The most common solution for that is Universal Plug and Play. Simply spoken the search is started by a broadcast message to which all devices are answering and so you find them.

Looks like Portable SDK for UPnP Devices is some good starting point for developing such solution with C++.

Posted 1-Jan-21 23:09pm

KarstenK

Richard MacCutchan · Accepted Answer · 2021-01-02T00:16:00

Solution 2

Take a look at NetServerEnum function (lmserver.h) - Win32 apps | Microsoft Docs[^].

Posted 2-Jan-21 0:16am

Richard MacCutchan