I just found another reason to love IPv6.
I spent 2 hours debugging why I can’t connect via RDP to a new server I built at home. Traces, firewall checks, vpings. Nothing – the port seemed closed from the network, even though it was wide open on the server OS.
Finally I found the reason – I was connecting via netbios name and the connection was going to a virtual machine I had opened, not to the actual physical server.
Thanks to IPv6, I couldn’t just recognize that looking at the ping results – it’s not that easy to spot a difference in IPv6, as it was with v4.
Just a rant. But quite annoying.