ICR "Unique Identifiers"

Sam Smith s at msmith.net
Wed Nov 4 15:38:59 GMT 2015

> On 4 Nov 02015, at 14:08, Ian Batten <igb at batten.eu.org> wrote:
> https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/473745/Factsheet-Internet_Connection_Records.pdf
>> However, without the retention of ICRs, resolving an IP address back to a single user will often not be possible as multiple users may be associated with that IP address. ICRs therefore provide the unique identifier to distinguish between different users of a shared IP address. 
> What?  What?  What is this on about?  I’m guessing it means you need to store whatever the token was that was used to issue an IP number (IMEI, modem MAC, etc), but it’s surely not going to be able to do anyhing about downstream NAT?

downstream NAT is less of a problem for inbound connections to that IP.

This is IP level retention, not HTTP level.


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