enterprise IPv6 only client computers and IPv4 connectivity

[Bernhard Schmidt]

Am 30.04.2013 10:07, schrieb Gert Doering:
> Hi,
> 
> On Tue, Apr 30, 2013 at 09:03:37AM +0200, Mikael Abrahamsson wrote:
>> If an enterprise today would decide that they're going to run IPv6 only on 
>> their LAN, they would have recent Win7|Win8|OSX|Ubuntu clients on their 
>> client computers, what mechanism would they use to access IPv4 Internet?
> 
> NAT64/DNS64 works very well, unless
> 
>  - someone uses literal IPv4 addresses to identify a service  (like,
>    embedded references in http pages, loading some content from IPv4 
>    addresses instead of hostnames)
> 
>  - that particular machine runs an application that does not know about
>    IPv6 - most notably Skype.

- Someone advertises AAAA records that fail to connect. See for example
https://outlook.office365.com that has had broken IPv6 for weeks now.

Bernhard