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<div class="moz-cite-prefix">On 22/11/2016 3:48 PM, Sam Silvester
wrote:<br>
</div>
<blockquote
cite="mid:CAAAhk6_CP9GhoFBEeRdokH0Oa7uON+6CZFL6e+tn0UdXTnnxNw@mail.gmail.com"
type="cite">
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<div class="gmail_quote">On Tue, Nov 22, 2016 at 3:11 PM, Mark
Newton <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:newton@atdot.dotat.org" target="_blank">newton@atdot.dotat.org</a>></span>
wrote:
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
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<div><span class="gmail-">
<div><br>
</div>
</span>“Identifiers of a related account” can be a
username, or a full name, or a name and an address or
somesuch (aka “any other service or device identifier
known to the provider that uniquely identifies the
source of the communication.”)</div>
<div><br>
</div>
<div>It can’t be “the IP address and port number
allocated to the subscriber or device connected to the
internet…” because you’re an ISP, you don’t allocate
port numbers, that’s the job of the applications
running on the users’ devices.</div>
<div><br>
</div>
<div>How on earth are you harvesting port numbers?</div>
<span class="gmail-HOEnZb"><font color="#888888">
<div><br>
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<div><br>
Sure it can be.<br>
<br>
Customer A might have a CGNAT outside IP <span
style="color:rgb(0,0,0);font-size:13.3333px">192.0.2.1
port range 10001 to 11000<br>
Customer B might have a CGNAT outside IP 192.0.2.1 port
range 20001 to 21000<br>
<br>
</span></div>
<div><span style="color:rgb(0,0,0);font-size:13.3333px">So
in this case, it's important to keep track of both the
IP as well as the port/port range assigned to the user
at the time.</span></div>
<div><span style="color:rgb(0,0,0);font-size:13.3333px"><br>
</span></div>
<div><span style="color:rgb(0,0,0);font-size:13.3333px">Sam</span></div>
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</blockquote>
<br>
Sure - and this information would all be relevant to an "Internet
access service" - along with RADIUS or TACACS logs for PPP logins if
that's how you implement your 'Internet access service' - if you are
served with a data request relating to Internet connection attempts.<br>
<br>
But for your 'email messaging service', and in answering a query
about one or more email messages? Nope.<br>
<br>
Paul.<br>
<br>
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