Re: Modified IPv6 to unmodified IPv4

[Iljitsch van Beijnum <iljitsch@muada.com>]

On 22-okt-2007, at 19:38, james woodyatt wrote:

> There is one significant way that unmodified IPv4 applications will  
> never be able to manage communicating with IPv6-only peers, i.e.  
> when their peers store their translated IPv6 addresses in some  
> persistent storage, like a logfile or a web page or a report or  
> anything generally intended for offline automated analysis, and the  
> IPv4-only application needs to do that and finds that it can't cope  
> with its address being translated out of the IPv4 address family.

True.

However, the case that I find more interesting is that of IPv6-aware  
applications running on hosts that only have IPv4 connectivity. In  
that case, it's possible to address this scenario. For instance, when  
the application wants to talk to an IPv6 address, it can set up a  
session through a dual stack proxy.