On 2013-8-13 18:30, Jared Mauch wrote:
I'm not sure how accurate this really is, but:
http://www.cdnplanet.com/blog/which-cdns-support-edns-client-subnet/
Basically, it helps pass the client IP upstream so the CDN can make a better
guess to which cluster to direct you to, instead of the query-source IP of the
recursive they are talking to.
but how to implement that? since local DNS server always has caching.
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