After a Discovery Scan, why do some Assets provide a Firmware version and some not?

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Hi, I have set up IAH for Demonstration purposes. Some of the Assets provide their Firmware verison after a scan, some not. What could be the reason?    For our use case the Firmware version plays an important role of transparency of the OT Network. 
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1 answers
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Hi Nurit,

 

there might be an issue with the SIMATIC Automation Tool Asset Link, when the assets are in a different subnet and Layer 2 is used. Depending on routing configuration not all information is transmitted. A fix is underway.

 

A workaround would be to use adjust the subnet of the edge device for a consecutive scan, to cover all devices directly.

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