(E-Mail Removed) (Scott Ehrlich) said:
>I have a Compaq Armada M700 laptop with a built-in Intel Pro 100+ miniPCI
>NIC and a built-in Lucent LT WinModem modem. I want to configure the
>system as a personal ISP such that I can dial into the machine from my PDA
>and cell phone and have it route calls to my Linksys "Broadband"
>router/hub (befsr81) which then connects to my cable modem.
First, work this piecewise! One piece at a time, until you understand
how that one piece works, and what is its relation to the other pieces.
>I want to configure the modem to only accept an incoming _data_ call from
>my cell phone then issue a dynamic IP address, and then work with the NIC
>for the rest. If anyone else calls, or if I establish a voice call from
>my cell phone, I want the modem to ignore the incoming call.
Hmm, wait. You're anyway connecting the modem to a traditional phone
line - and you may have caller identification enabled on that line
from your local phone company.
Now, connect a phone to that line. Make a voice call from your mobile
to the landline number. Then, make a data call to the same number.
Find out what is the difference in the two calls -- before answering:
I claim there is no difference - thus, you can't distinguish incoming
data and voice calls on the landline. And your modem can't do it either.
If you have caller-id enabled, your modem may (and most often should) be
able to pick the caller number before answering, so that part can be
done.
Some phone companies may provide a single landline with several numbers
so that different numbers are distinguished by different ringing tones
(or rather, rhythms: ring-pause-ring, versus ring-ring-pause-ring-ring,
for example). If this is available at your location, it might be possible
to distinguish your data calls from the others by calling to separate
numbers (but still assigned to a single line).
Don't go into the, user authentication, PPP set-up or routing until you
have the above piece completed - to at least some satisfactory level.
I'd say that properly distinguishing the incoming calls will be the
hardest part to get working. The winmodem either works, or doesn't;
you'll find out that by testing - and anyway you have an alternative.
Then the PPP set-up (including user authentication), and routing
issues should be the parts for which documentation and help would
be easiest to find.
--
Wolf a.k.a. Juha Laiho Espoo, Finland
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