[134661] in North American Network Operators' Group
Re: Problems with removing NAT from a network
daemon@ATHENA.MIT.EDU (Jima)
Sat Jan 8 20:20:30 2011
Date: Sat, 08 Jan 2011 19:20:26 -0600
From: Jima <nanog@jima.tk>
To: nanog@nanog.org
In-Reply-To: <4D26B516.80001@matthew.at>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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
