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General Musing

blaze your trail

Internet in the Train #geoip #transport

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On Wednesday I was coming from a client in Rotterdam, and we on my way to a networking event in Utrecht when I got into the train. I’d heard that the NS, Dutch National Railways, and T-Mobile were running a pilot until 2013 to offer free wifi in the train. I’d never tried it and when I did I was pleasantly surprised.

T-Mobile ifconfig

T-Mobile ifconfig

Sadly I had no exploratory tools on my new laptop, so I decided I would explore with the tools I did have. Firstly I went to to get my geolocation, which was Germany. This is odd as we are in the Netherlands, but we are probably being routed through the network of T-Mobile in Germany.

T-Mobile Netstat

T-Mobile netstat

As I said I didn’t have nmap to fingerprint the router or any kind of packet interceptor, and I neglected to run traceroute. Although I did have the presence of mind to lookup the IP address and default gateway I was assigned using ifconfig, netstat and to ping the router, the results of which you can see above and below.

T-Mobile Ping

T-Mobile ping

I wrote about this before in Proof of Concept: Simple Authenticated Internet Access

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Written by Daniël W. Crompton (webhat)

January 15, 2011 at 5:32 pm

Posted in security

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