On   4 Sep, this message from Rogério Brito echoed through cyberspace:
>       I'll probably be saving some money the next few months up to
>       Christmas to buy me things for wireless access.

:-)

>       1 - Is the airport card (the one that goes inside the iBook)
>           completely supported under Linux?

Has been commented extensively... Has always worked well for me.

>       2 - If one would purchase a PCMCIA card for a x86 notebook,
>           which brands would be recommended, regarding the quality
>           of support under Linux (and also availability)?

I also own a Cisco Aironet PCM350 card (don't know whether it's price is
interesting re. other cards), which works top-class as well, and which
has a _much_ better range than the built-in Airport in my TiBook.

>       3 - Can anything base station be used in place of Apple's
>           expensive base station? Would there be any loss of
>           functionality?

No, not right away. There are various modes of operation of a wireless
network: managed, unmanaged, ... I forget all the names. Anyway, when
you run an access point, most of the time you'll run in managed mode,
where all traffic from client A to client B goes _through_ the base
station. At the same time, the base station does bridging between
wireless and wired.

This 'managed' mode requires software support that is, AFAIK, not
available in _any_ Linux driver for wireless cards. The hardware is the
same, though.

>       I'm not exactly sure if I understand the concept of a base
>       station. To me, all descriptions that I read sound just like a
>       dedicated router (and possibly doing NAT) with ability of
>       connecting via waves (and possibly through ethernet). Is that
>       right?

Bridging between wired and wireless, and doing routing/NAT towards a
dial-up Internet connection, with dial-on-demand functionality.

>       If it is, then a base station could be substituted with, say,
>       an old computer with another (cheap) wireless card, right?

For some applications, in non-managed mode, maybe. Not in managed mode,
AFAIK.

>       Sorry for asking questions so basic here, but my training in
>       the area of networks is not as strong as I'd like, and I have
>       never even *seen* or used a wireless network in my life (not
>       common here where I live) and I'm just speculating if I should
>       buy the gadgets necessary after I graduate or if it will be a
>       better investment to use the money saved for something else
>       (like books).

Go read Jean Tourrilhes' pages about wireless stuff:

http://www.hpl.hp.com/personal/Jean_Tourrilhes/

Cheers

Michel

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