> 2016-11-02 15:25 GMT+01:00 Uwe Brauer <oub.oub.oub@...>:
>>
>>    > 2016-11-02 12:25 GMT+01:00 Uwe Brauer <oub.oub.oub@...>:
>>    > Hello,
>>    > I'm using Debian, so it could be different for you.
>>    > But you have to comment your eth0 lines on your file /etc/network/interfaces.
>>
>> Hm thanks.
>>
>> I renamed that file to interface-org, maybe this is not sufficient.
>> Are you saying I should comment out *all* lines concerning eth0? Even
>> auto eth0?
>>
>> I have right now in the file interface-org
>>
>> auto lo
>> iface lo inet loopback
>> address 127.0.0.1
>> netmask 255.0.0.0
>>
>> iface eth0 inet static
>> address XXX.XX.XX.XX
>> netmask 255.255.255.0
>> gateway XXX.XX.XX.XX
>>
>> auto eth0
>>
>> Where I put in this mail dummy values for the relevant entries.
>>
>>
>>    > And you have to change the bolean of ifup line on the file
>>    > /etc/Networkmanager/Networkmanager.conf
>>    > Try to do it an reboot ?
>>
>> There is no [ifup] line only a [ifupdown] line
>>
>> So should I change
>>
>> [ifupdown]
>> managed=false
>>
>> To
>> [ifupdown]
>> managed=true
>>
>> And just in case
>>
>> [ifup]
>> managed=true
>>
> I'll send you my files when i'll be back at home.
> I'm on my win7 job computer now =)
> But basically, you have to let NM , ond only NM manage your wired connection.

Then,
This is my two files :

nano /etc/network/interfaces
===================================================
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
# allow-hotplug eth0
# iface eth0 inet dhcp
===================================================

Comment all lines about all of your interfaces you will use with NM.

nano /etc/NetworkManager/NetworkManager.conf
===================================================
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true
===================================================

And set ifupdown to true to all NM to managed all interfaces.
Now your can create a new wired connection in NM with all the
parameters you want.

Bye.