I think its incredibly ironic actually. The place where IPs are burned through rapidly (internal) is forced to use v4. (and, potentially even a subset of it, RF

I think its incredibly ironic actually. The place where IPs are burned through rapidly (internal) is forced to use v4. (and, potentially even a subset of it, RFC1918; likely conflicting with some large company or service if they decide to plumb it together later- or you burn publicly accessible IPs in the limited address space) But the one interface that touches the internet can use v6: the one with a functionally infinite address space.