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From: vr on 25 Jun 2010 16:00
On 6/25/2010 3:27 PM, Merciadri Luca wrote:
> Might be that, but how could my ISP guess that I'm using a router?
>

The first few characters of a MAC address are registered to a company.


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From: vr on 25 Jun 2010 16:20
On 6/25/2010 3:53 PM, Merciadri Luca wrote:
> vr wrote:
>> On 6/25/2010 3:27 PM, Merciadri Luca wrote:
>>
>> The first few characters of a MAC address are registered to a company.
> Sure, but are you sure that they can know the router's MAC address?
>


Yes, your device is physically attached to their network.


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From: Klistvud on 25 Jun 2010 16:20
Dne, 25. 06. 2010 21:24:29 je Merciadri Luca napisal(a):

> The problem is that my switch does not have any WAN port!

IIRC switches don't need one, as they juggle packets based on hardware
(MAC) addresses. But then again, I've been wrong before ...


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From: John Hasler on 25 Jun 2010 16:40
Merciadri Luca writes:
> Sure, but are you sure that they can know the router's MAC address?

Their modem knows it: it's connected to your router via ethernet.
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From: Celejar on 25 Jun 2010 16:40
On Fri, 25 Jun 2010 15:53:09 -0400
vr <debian-user(a)iotk.net> wrote:

> On 6/25/2010 3:27 PM, Merciadri Luca wrote:
> > Might be that, but how could my ISP guess that I'm using a router?
> >
>
> The first few characters of a MAC address are registered to a company.

True, but many companies make both routers and regular NICs. Is there
any way to tell from the MAC whether we're dealing with, say, a Linksys
router as opposed to one of their NICs?

Celejar
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