Add exclude { ::/0; }; to the dns64 definition. It won’t prevent the lookup but
will cause the AAAA returned to be ignored.
--
Mark Andrews
> On 3 Apr 2018, at 23:14, Rick Tillery <[email protected]> wrote:
>
> I am creating an IPv6-only subnet to test software for IPv6 compatibility.
> We just need to check that the software can function correctly in an IPv6
> network, so prefixed IPv4 addresses work the same as real IPv6 addresses in
> this testing. We also don't actually need access to the IPv6 Internet, just
> the IPv4 Internet, which is good, because our network connection is only
> IPv4, and we have no tunnelling.
>
> Using TAYGA as the NAT64, I have configured the subnet so that prefixed IPv4
> addresses are working, and I can reach IPv4 sites. However, I need DNS64 to
> provide name resolution to these prefixed IPv4 addresses.
>
> Google's DNS64 server requires access to the IPv6 Internet (according to
> Google on their support group), so it won't work for us. So I have to
> configure my own DNS64 server, and Bind seems like just the thing.
>
> 1. All the documentation for DNS64 says that when a name lookup is send to a
> DNS64 server, it first checks for an IPv6 address, and if one is not
> available, it gets the IPv4 address, prefixes it to create an IPv6 address,
> and in either case returns an AAAA record. But can Bind be configured on an
> IPv4 domain, such that it skips the first part and just returns the wrapped
> IPv4 address in an AAAA record?
>
> 2. I already have 2 VMs configured for my subnet, one acting as router, and
> the other my NAT64. Can Bind share the Debian TAYGA/NAT64 machine, or do I
> need to create a new VM for Bind as well?
>
> Thanks for your help!
> Rick
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