Problems with removing NAT from a network

Matthew Kaufman matthew at
Sun Jan 9 00:39:47 CST 2011

On 1/8/2011 5:20 PM, Jima wrote:
> On 1/7/2011 12:39 AM, Matthew Kaufman wrote:
>> If one end is behind a NAT64 and there is no mechanism for discovering
>> the NAT64's IPv6 interface prefix and mapping algorithm (and at present
>> there is not), there is no way to send IPv6 IP packets from the
>> IPv6-only host to IPv4 literal addresses (that is to say, addresses
>> learned via a mechanism other than DNS responses synthesized by the
>> DNS64 part of the NAT64 "solution") on the IPv4 Internet through said
>> NAT64.
>  While a rather inelegant solution, it just popped into my head that 
> one could do an AAAA query for a known-value A record (i.e., under 
>, and based on a response (if any), replace the known IP 
> value with the IP which with one wants to connect.
>  A little weird, but it's a thought.
>      Jima
That's one of the proposed solutions on the list of discovery 
technologies, IIRC.

Matthew Kaufman

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