Once again, we've covered a relatively niche topic in this chapter, and the additional resources for learning more are few and far between. I'd certainly recommend you explore the Microsoft documentation for the System.Net.NetworkInformation namespace, which can be found here: https://docs.microsoft.com/en-us/dotnet/api/system.net.networkinformation?view=netcore-3.0
Additionally, if you have any interest in continuing down the path of network traffic analysis and packet inspection, I'd recommend the book Packet Analysis with Wireshark by Anish Nath. This book provides an extensive how-to for investigating and understanding the nature of the raw network packets that come into contact with your network adapters moment to moment. It's available through Packt, here: https://www.packtpub.com/networking-and-servers/packet-analysis-wireshark.
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