[134668] in North American Network Operators' Group
Re: Problems with removing NAT from a network
daemon@ATHENA.MIT.EDU (Matthew Kaufman)
Sun Jan 9 01:40:57 2011
Date: Sat, 08 Jan 2011 22:39:47 -0800
From: Matthew Kaufman <matthew@matthew.at>
To: Jima <nanog@jima.tk>
In-Reply-To: <4D290D5A.5040905@jima.tk>
Cc: nanog@nanog.org
Reply-To: matthew@matthew.at
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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
> skype.com), 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
