[systemd-devel] How to turn off some network interface?

[Reindl Harald]

Am 21.09.2015 um 19:40 schrieb David Herrmann:
> On Sun, Sep 13, 2015 at 1:40 PM, Reindl Harald <h.reindl at thelounge.net> wrote:
>>
>>
>> Am 13.09.2015 um 13:28 schrieb Rosen, Rami:
>>>
>>> What do you mean by stopping networkd, can you elaborate a bit about what
>>> you want to achieve?
>>>
>>> If you want to stop the service, simply run
>>> "systemctl stop systemd-networkd".
>>>
>>> The after that ifconfig command, it won't start.
>>>
>>> If you want to disable one network interface (let's say eth0),
>>> then go to the proper configuration file under
>>> /etc/systemd/networkd and comment/disable it, and
>>> restart the networkd service by:
>>>
>>> systemctl restart systemd-networkd
>>
>> well, that's a little unfortune compared to a setup not using
>> systemd-networkd where you can *temporary* disable interfaces just with
>> "ifdown lan4" without changing a configuration
>>
>> the point is *temporary*, changing the config means it would be disabled at
>> the next boot too, on a machine acting as router/switch temporary disable
>> interfaces makes a lot of sense to disconnect a client from the network
>
> Just modify your .network files and restart networkd. It will adapt to
> the new configurations at runtime.

that response makes no sense when we talk about *temporary* without 
touch configuration files

> Proper runtime-management via networkctl is planned, but no-one
> implemented it yet

hence the response above makes no sense

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