[LINK] RFI: Geolocation based on IP-Address
Roger.Clarke at xamax.com.au
Thu Sep 27 09:26:47 EST 2007
At 18:16 -0500 26/9/07, Kim Davies wrote:
>Quoting Roger Clarke on Thursday September 27, 2007:
>| 188.8.131.52.in-addr.arpa name = 220-244-240-4-act-pppoe.tpgi.com.au.
>| So they rely on parsing the DNS entry for odd strings like 'act'?
>I think the possibly unspoken assumption here is that they are parsing
>for this _automatically_, which is probably wrong. Ranges are likely are
>computed using rules that have been devised after humans have studied
>and individually classified the naming systems and routing arrangements
>employed by each network provider.
There are presumably thousands of ISPs that operate in multiple areas
- many scores in Australia alone I would imagine. (Unfortunately
Kim's Australian ISP List is no more:
Manual analysis sounds very expensive. Is the company making *that*
Roger Clarke http://www.anu.edu.au/people/Roger.Clarke/
Xamax Consultancy Pty Ltd 78 Sidaway St, Chapman ACT 2611 AUSTRALIA
Tel: +61 2 6288 1472, and 6288 6916
mailto:Roger.Clarke at xamax.com.au http://www.xamax.com.au/
Visiting Professor in Info Science & Eng Australian National University
Visiting Professor in the eCommerce Program University of Hong Kong
Visiting Professor in the Cyberspace Law & Policy Centre Uni of NSW
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