[dns-operations] Signaling client protocol to authority

Jim Reid jim at rfc1035.com
Sun Jan 16 18:34:27 UTC 2011

On 16 Jan 2011, at 17:04, Patrick W. Gilmore wrote:

> It is much better to give back an A record when the user can use a  
> quad-A than handing back a quad-A when the user only has v4.

This is all very well but it's not how the DNS works. Why would a  
server choose to put an A record in the Answer Section when it was  
asked for AAAA (or vice versa)?

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