'Upgrading' NAT64 to 464XLAT?

[Doug Barton]

On 11/25/2013 05:20 AM, Dick Visser wrote:
> We've been running a NAT64/DNS64 set-up for a while now on some parts
> of our office network. This seems to work well, but it doens't work
> for everything (e.g. Skype etc).

When it was first being considered there was a non-zero number of us who 
made an initial effort to explain to the authors that DNS64 was a 
non-starter because there are always going to be IPv4 sites that 
hard-code IP addresses, and a non-trivial number of them are going to be 
critical sites for any given set of users. The authors chose to plunge 
ahead anyway, leaving us with yet another transition technology "cure" 
that is worse than the disease.

Dual stack on the inside network is the only (effective) way to address 
this issue, even if it requires IPv4 NAT at the border.

Doug