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Re: Geo location to IP mapping
- From: Daniel Senie
- Date: Tue May 16 11:00:25 2006
At 10:39 AM 5/16/2006, Tao Wan wrote:
Here is a tech report with a survey on geolocation and evasion techniques:
http://www.scs.carleton.ca/~jamuir/papers/TR-06-05.pdf
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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