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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