Re: Disconnect

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On Wed, Aug 29, 2012 at 1:49 AM, Patrick Dupre <pdupre@xxxxxxxxxx> wrote:
> On 2012-08-28 20:19, Mikkel L. Ellertson wrote:
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> On 08/28/2012 10:49 AM, Kevin Martin wrote:
>>>
>>> On 08/28/2012 09:13 AM, Patrick Dupre wrote:
>>>>
>>>> On 2012-08-28 16:04, Marko Vojinovic wrote:
>>>>>
>>>>> On Tuesday, 28. August 2012. 12.15.16 Patrick Dupre wrote:
>>>>>>
>>>>>> The NetworkNamager provides a disconnect option. I undertand
>>
>> that it
>>>>>>
>>>>>> can be manager through /etc/NetworkManager/dispatcher.d
>>>>>> However, when I disconnect the ppp0 connection, ppp0 is already
>>>>>> down (due to the disconnect) and prevents me to collect information
>>>>>> through ifconfig.
>>>>>>
>>>>>> How can I avoid this problem. I wish to collect information of the
>>>>>> ppp0 just before it is turned off.
>>>>>
>>>>>
>>>>> Wasn't this covered in another thread already?
>>>>>
>>>>> If you want to see ifconfig output just before disconnecting, open a
>>>>> terminal,
>>>>> type "ifconfig", read the output, then disconnect. It's pretty
>>
>> obvious, I
>>>>>
>>>>> guess.
>>>>>
>>>>> So, the nonobvious thing is: what precisely is the actual
>>
>> problem you are
>>>>>
>>>>> trying to solve? Please try to be more precise.
>>>>>
>>>> I want it does it automatically!
>>>>
>>>
>>> The problem I see in what you are trying to do is that there is no
>>
>> way to determine when exactly a disconnect will be taking place.
>>>
>>> If you know exactly when a disconnect will take place then it
>>
>> should be fairly simple to script it but if the disconnects take
>>>
>>> place randomly there is no way you'll be able to script it. You
>>
>> would have to have a program (daemon) running with hooks into the
>>>
>>> network stack that reported statistics at the time of the
>>
>> disconnect and I don't think that's easy to do and certainly would
>> require
>>>
>>> an in depth knowledge of programming at the driver level to do it.
>>>
>>> Kevin
>>>
>> One thing you could try is creating a /sbin/ifdown-pre-local script.
>> You will have to do a compare of $1 with ppp0, and exit if it is a
>> different interface, because it is run before bringing any interface
>> down. I am not sure if Network Manager uses the ifdown script, but
>> you could alway run ifdown ppp0 to disconnect. This will not help if
>> the interface goes down without you telling it to.
>>
> I tried, but /sbin/ifdown-pre-local is never activated
> ifdown ppp0 gives: usage: ifdown <device name>
> ppp0 is not recognized as a device!
>
> I also tried to use /etc/NetworkManager/dispatcher.d/20-ifdown
> but it is also never activated.
> I though that /etc/sysconfig/network-scripts/ifdown-ppp
> could do the job, but again it is never activate when I disconnect the
> network.
>
> This is the result of ifconfig ppp0
> ppp0      Link encap:Point-to-Point Protocol
>           inet addr:111.169.43.118  P-t-P:10.64.64.64  Mask:255.255.255.255
>           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
>           RX packets:1370 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1381 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:3
>           RX bytes:1741245 (1.6 MiB)  TX bytes:94465 (92.2 KiB)
>
>
> Other ideas?

Try to create /etc/ppp/ip-down.local script. I'm not sure if it will
be activated by NM, but worth trying.
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