On 21 Jul 2009, at 11:54, Kenn Humborg wrote:
>> Traffic is download mostly - which at least is a bit reassuring.
Not really - see what Kenn says later about port scans etc. Any such
incoming traffic shows as download, whether it's as traffic arriving
as a result of your actions or not.
> Originally, we were using the "open.internet" GPRS APN. However,
> the telco bills were showing 30-40% more traffic than we were
> measuring in our software. Switching to the "internet" APN sorted
> this out.
>> It turns out that the "open.internet" APN allows all inbound traffic
> to your dynamically-assigned public IP address, whereas "internet"
> only allows inbound IP traffic associated with existing TCP
> connections (and presumably UDP too for DNS stuff).
This is very interesting Kenn. Where did you manage to get that
information?
I've been using open.internet on my computer's dialup settings since I
switched
to O2 (changed now :-) ) though I see that the phone itself was setup
to use
internet for its own connections - not sure how I managed to do that,
as I had
no idea of there being a difference between them.
Niall
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