nanog mailing list archives

Re: Why are there no GeoDNS solutions anywhere in sight?


From: Bill Woodcock <woody () pch net>
Date: Thu, 21 Mar 2013 08:21:19 -0700


On Mar 21, 2013, at 12:23 AM, "Constantine A. Murenin" <mureninc () gmail com> wrote:
Why is there no way to do any of this?

Because it is impractical to assume an IP address can be mapped
uniquely to a geolocation.

Why is it impractical?  If I have a server in Germany and in Quebec,
why would it be impractical to have the logic in place such that
European visitors would be contacting the server in Germany, and
visitors from US/Canada -- the one in Quebec?

There is not "no way to do any of this."  People do it all the time.  They do it using anycast, which requires a 
certain amount of network build, or they do it using source-address databases, which have a certain amount of 
ridiculous FAIL.  Are you actually asking why there's no way to do it perfectly at no cost?

                                -Bill







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