Brad, I see that you work with SolarWinds, so I'm not sure if you were conflicted with making recommendations. However, it doesn't make sense to post your recommendations without providing leads and examples. Why bother writing if you're basically telling us nothing we don't already know?

On a separate note, IPv4 is not going anywhere, and as others have noted, it's fine for private networks. What you should have talked about was the advantages of moving internal networks (or external) to IPv6. For example, aren't there significant security advantages there?????