Geo location to IP mapping

Daniel Senie dts at
Tue May 16 14:58:50 UTC 2006

At 10:39 AM 5/16/2006, Tao Wan wrote:

>Here is a tech report with a survey on geolocation and evasion techniques:

This document seems to miss one other fairly common way in which 
geolocation fails: VPN. Whether a single user VPN session in which 
the user's laptop obtains an IP address from the VPN gateway, or a 
subnet extended out across a VPN to a remote office, the user(s) will 
appear to be at the location of the VPN concentrator. While ping 
latency, if even transported over the VPN, may show a greater 
distance than other IP addresses in teh neighborhood, there is no 
clear way to know why that latency is higher. It's odd this was omitted.

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