Re: Configuring SLIP interface to use mobile phone as modem

["Nino on NetBSD 5.0.1" <nbsdold%gmx.net@localhost>]

Are you sure? From my point of view, SLIP and PPP use the same devices and 
besides being more "funky" in the configuration options, I see no advantage of 
PPP over SLIP. For all I know, it might even be more insecure.

Back on topic: Mayuresh, are you sure it is just ttyU0? I have witnessed in the 
past the weird and funny situation of a cell phone showing up as BOTH U0 and 
U1, and ONLY ONE of these actually WORKING.

Try connecting (as root) to the phone over "cu", e.g. cu -l ttyU0

If you can then say AT and get OK, then your modem is principally operational. 
If you get an error, then you have a principal problem away from PPP and SLIP.


-------- Original-Nachricht --------
> Datum: Sat, 06 Oct 2012 14:30:20 -0500
> Von: Dave Huang <khym%azeotrope.org@localhost>
> An: netbsd-users <netbsd-users%netbsd.org@localhost>
> Betreff: Re: Configuring SLIP interface to use mobile phone as modem

> On 10/6/2012 2:15 PM, Mayuresh wrote:
> > My setup: NetBSD 6.0 rc1 on i386, Nokia N900 connected with USB cable.
> >
> > Kernel is configured to support ucom0, umodem0 and sl psuedo device.
> >
> > On connecting the modem is identified as umodem0
> >
> > Firstly I assume, SLIP is the right method to use as I do not need to
> dial
> > like in ppp, just need to connect with the device over USB LAN.
> 
> I don't know anything about the N900, but SLIP is almost certainly not 
> the right protocol. Are you sure it's not PPP? On all the phones I've 
> used, to get a GPRS/3G data connection, I use PPP and use "*99#" as the 
> phone number. 
> http://nokiaexperts.com/nokia-n900-tips-n900-modem-apple-mac/ is about 
> connecting it to a Mac, but it seems to confirm that it uses PPP with 
> *99# as the number, like other phones.
>