Maintained by: NLnet Labs

[Unbound-users] DNS-ALG/DNS64 question

Florian Weimer
Mon Oct 5 22:09:50 CEST 2009


* Simon Perreault:

> On Monday 05 October 2009 15:48:17 Florian Weimer wrote:
>> I still think that DNS64
>> is only needed if you have IPv6-only clients without *any* IPv4 stack
>> whatsoever.
>
> Why does the presence of an IPv4 stack have anything to do with the
> need for DNS64?

Why would you need DNS64 if you can make connections to IPv4 addresses
at the API level?  The kernel can tunnel/NAT it, no matter what API
calls you use.  Only if AF_INET isn't there at all, you need to
provide the system with some means to address IPv4 hosts without
AF_INET.