On 7 Aug 2012, at 14:15, Paul Mansfield <[email protected]>
 wrote:

> I don't have any NS records which would cause anything to talk to my
> home IP, so I find it very odd.

Are you running a local recursive resolver?

Packets like those are often seen when the _return_ packets from an outbound 
DNS query are blocked by a local stateful firewall that doesn't have enough 
state.

Ray



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