Capturing network traffic on a Hyper-V host

This content is 16 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

I’ve been capturing some network data using a computer with Hyper-V installed this evening and it’s worth noting that I needed to sniff a physical network connection to get anything meaningful. Thinking about it, that makes sense (Hyper-V implements a virtual switch – not a hub – so the traffic on each vNIC is isolated until it reaches a pNIC) but it may be something worth remembering.

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