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Posted by Bill M. on June 24, 2007, 2:13 pm
On Sun, 24 Jun 2007 10:40:34 -0700, "tamasumalta@hotmail.com"
>First of all, how an ISP can limit the client's connection usage. Does
>he use a proxy or there is another type of infrastructure?
You could think of it as a transparent proxy. It could be a box that
sits inline and does deep packet inspection (DPI) on the traffic
that's passing through, applying a set of rules (business logic) to
that traffic. Those rules can be quite complex, ranging from applying
QoS logic, port based logic, port-agnostic protocol logic, time of day
logic, and on and on.
Where I work, we're doing a lab trial of an Ellacoya product right
now, but there are plenty of other vendors also in this space.
>On the other hand, there is a way that the user can bypass this
>limitation?\
Not if they've implemented it properly. Experiment and see if moving
your traffic to another port helps, assuming you're able to do that.
Opening multiple connections to the same host can help in some
situations, such as if they've limited the throughput per connection.
As always, keep an eye on your ISP's TOS/AUP in case trying to
circumvent their policies can get you tossed.
--
Bill
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