On Monday 18 November 2013, Mick wrote:
> After more than a year I tried to tether my mobile to my laptop to connect
> to GPRS using kppp.  I noticed that kppp hangs and I have to kill it,
> while it hangs with "Modem Ready".  I can query the modem successfully
> using kppp, and it responds to ATI initialisation commands, so now I am
> trying to understand what is wrong with it and why the connection does not
> complete.
> 
> ifconfig -a does not show rfcomm0, but this may be because it never
> completes the connection to my mobile phone provider's network, so the ppp
> link is not established.
> 
> I can see that the rfcomm device is being created:
> 
> # ls -la /dev/rfcomm*
> crw-rw---- 1 root uucp 216, 0 Nov 17 15:51 /dev/rfcomm0
> 
> and it does try to connect until it freezes showing "Modem Ready", but I am
> getting no more errors to know what to do next.
> 
> I was thinking that this may be related to the udev NIC renaming change
> that happened within the last year.  However, I never had any udev rules
> to manage rfcomm and from what I recall vaguely when the udev update came,
> I had no problem connecting  (but memory may be failing me after all this
> time).  It could of course be related to my mobile phone providers
> settings - I haven't changed these for a long time and looking on the
> Internet I can't find if they are any different now.
> 
> How should I troubleshoot this further?
> 
> Could someone please hold my hand to set up ppp so that I can avoid kppp
> and its freezing behaviour?

Have you started the rfcomm service? I remember having trouble until I did 
that.

HTH
Robin

-- 
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Robin Atwood.

"Ship me somewheres east of Suez, where the best is like the worst,
 Where there ain't no Ten Commandments an' a man can raise a thirst"
         from "Mandalay" by Rudyard Kipling
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