Internet connection with cable modem + AP

HI NG,

I am new to the wireless business. A friend of mine has a cable modem and
does not want to drill holes for a cable to his upstairs computer. Therefore
he bought a wireless AP, which is now connected directly to the router of
the cable modem. It is possible to connect to the AP but is it possible to
establish an internet connection via an AP which is not connected to a PC or
do you need some special AP like there are DSL APs for DSL lines? Or is it
just a matter of configuration?

Any links, hints, etc. appreciated

TIA

lukashimmelslaeufer

Lukashimmelslaeufer <(E-Mail Removed)> wrote:
> I am new to the wireless business. A friend of mine has a cable modem and
> does not want to drill holes for a cable to his upstairs computer. Therefore
> he bought a wireless AP, which is now connected directly to the router of
> the cable modem. It is possible to connect to the AP but is it possible to
> establish an internet connection via an AP which is not connected to a PC or
> do you need some special AP like there are DSL APs for DSL lines? Or is it
> just a matter of configuration?

The AP will pass through the connection from your PC to the internet.

On cable modems, the cable company will often require that you register
the MAC address of the device used to connect to the cable modem.
Perhaps you haven't done that.

Most routers (I don't know about APs, and you didn't give a brand or model
number) allow you to clone the MAC address from some PC, so that you
don't have to change the registration MAC with your cable company.

There is no special AP required for cable modem. Some routers include the
ability to log on to a DSL provider, but that same need doesn't exist for
cable modem. They are "always on", the way DSL merely claims to be.


I would rather have a router connected to cable modem, instead of an
AP, to provide some protection from internet attacks. With an AP,
you will probably only get one PC connected to the internet, because
the cable company will only provide one IP address. With a router,
the one internet IP address can be shared amongst several computers.

You mention cable router. Is there a cable modem and a separate router
already?


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Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8-122.5

> I am new to the wireless business. A friend of mine has a cable modem and
> does not want to drill holes for a cable to his upstairs computer.
Therefore
> he bought a wireless AP, which is now connected directly to the router of
> the cable modem. It is possible to connect to the AP but is it possible to
> establish an internet connection via an AP which is not connected to a PC
or

The cable modem needs to have an ethernet connector, if it only has a USB
connector then it won't work without a PC.

> The AP will pass through the connection from your PC to the internet.
>
> On cable modems, the cable company will often require that you register
> the MAC address of the device used to connect to the cable modem.
> Perhaps you haven't done that.
Sure, I did not.
> Most routers (I don't know about APs, and you didn't give a brand or model
> number) allow you to clone the MAC address from some PC, so that you
> don't have to change the registration MAC with your cable company.
That sounds interesting. BTW I asked this friend of mine again and when he
described that cable router it turned out that it was nothing but a simple
cable modem. This leads me to the following theory: Don't you need a
crossover Ethernet cable to connect the AP directly to the modem?


> I would rather have a router connected to cable modem, instead of an
> AP, to provide some protection from internet attacks. With an AP,
> you will probably only get one PC connected to the internet, because
> the cable company will only provide one IP address. With a router,
> the one internet IP address can be shared amongst several computers.

It will do to connect only one PC.

> You mention cable router. Is there a cable modem and a separate router
> already?
As mentioned above this "cable router" was a wrong expression for a simple
cable modem (BTW Wisecom)

> Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8-122.5