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Re: How to tell if something is anycasted?
DH> Date: Tue, 16 May 2006 18:05:10 -0400 DH> From: David Hubbard DH> So I'm looking at a company who offers anycasted DNS; DH> how do I tell if it's really anycasted? Just hop on DH> different route servers to see if I can find different DH> AS paths and then do traceroutes to see if they suggest DH> the packets are not ending in the same location? More or less. Latency triangulation actually is useful in this instance, too. :-) DH> From my routers' perspective I don't see a difference, but then DH> I don't think I should, correct? Think of it as multihoming, only the end "node" is geographically distributed. The "node" may also lack "interior" routing. Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita ________________________________________________________________________ DO NOT send mail to the following addresses: firstname.lastname@example.org -*- email@example.com -*- firstname.lastname@example.org Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.