Assembly should be marked CLSCompliant

[maettu-this]

Use of IPNetwork in the API of an assembly marked [assembly: CLSCompliant(true)] shall not result in build warnings.

https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca1014

Non-compliant members can be marked [CLSCompliant(false)].

[lduchosal]

PR Welcome