(E-Mail Removed) wrote:
> Thanks again for your prompt replies .
>
> However, I feel I may not have explained my query adequately in that I
> failed to mention that , since my original post in this thread , I
> have discovered that in a case such as I have where I need to link
> only 2 machines wirelessly , this can be done without using a router
> by means of using the "Ad Hoc" method.
>
> Can you tell me therefore , if using the "Ad Hoc" method, it would
> then be necessary to replace the non-wireless cards already installed
> with new wireless cards since there would now be no router?
Well, obviously you'd need some WiFi cards in there if you want to make
any wireless connections either through a router or through ad-hoc mode.
But no, you wouldn't need to remove your old wired ethernet cards,
unless you have no slots available for additional cards.
But if you just wanted to connect two and nothing more than two
computers to each other directly without a router, then you'd simply
need to use a cross-over cable between them. A cross over cable is much
like a wireless ad-hoc network for the wired world.
>
> If that is correct , then I presume the external ADSL modem would be
> connected as before but this time to the wireless card in the desktop
> and , from that , link the laptop to the Web through its own wireless
> card ?
>
> Is this a correct assumption?
No, you're completely off. There are no ADSL modems with their own
wireless connection, they all required a wireline connection. You would
need to keep at least one wireline card just to connect to the ADSL. Now
what that wireline connection to the ADSL modem is, it could either be
an ethernet cable (most likely) or a USB cable (less likely).
What you're really trying to do here is turn your desktop into a router.
The laptop would access its Internet through the desktop through its
ad-hoc or crossover-cable LAN. The desktop would contain two cards, one
for the LAN and one for the WAN (the Internet). You would need special
software running on the desktop to route the packets from the laptop to
the Internet. And you wouldn't be able to reboot or shutdown the desktop
any old time you like, because it might affect the Internet connection
of the people with the laptop. By the you configure and buy all of this
equipment, you'd have been better off to simply buy a router and be done
with it.
Save yourself the headaches, don't do what you are planning to do.
Yousuf Khan
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