Only on their own network, surely. There is an ATM VC that goes over BT's ATM network to connect my router to one of my ISP's routers. I don't see that BT has access to the IP addresses of each end of that circuit, or, if it does, it shouldn't be spying.
Most ISPs will have the full postal address for each of their customers
- after all they want some assurance of collecting payment. They will normally be ale to relate either a static IP, or if the time of the connection is known, a dynamic IP to the relevant customer.
However to get that information out of them should require a court order (although other rules may apply for spooks!)
Depends on the time window you pick... once they had built their scalable server, it worked very well. A few years before they needed the scalable server it was also ok. However that couple of years in the middle kind of spoilt it!
I would have expected that, with one end in my local exchange, the other end on the ISP's router, BT would use their management software to set up a VC between those points over their ATM network, and that would be it as far as their involvement was concerned. However, giggling for "BT Radius Server" appears to indicate that it doesn't work like that; perhaps the simple approach doesn't scale.
My only experience of ATM was when it was all the rage for WANs back in the late 90s. Since then large networks that I was involved with all scrapped it and went for 10Gbps leased circuits using SDH or 10gigE, and subsequently dark fibre.
Ahem! RIPA has been in place over ten years now, and only requires a senior enough manager's signature, in whatever public authority or police force claims to require the data.
In message , at 17:48:04 on Mon, 26 Aug 2013, Chris Hogg remarked:
Which simply proves that geolocation based on IP address is crap.
However, should you be using a laptop (let alone mobile) with wifi, there are tools/databases that people can use which will quite likely locate you within a few hundred yards.
It doesn't actually know who your ISP is until your router tries to login. If you reconfigure your router with the login details for another person using a different ISP (but also on BT wholesale), you will find you can login to their ISP on your line just like you normally log in to yours.
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