On Fri, 22 Jul 2016 19:33:19 +0200 Laurent Bigonville <bi...@debian.org>
wrote:
> Hi,
>
> With the jessie version, with the following configuration, I get one
> dhclient process started as expected:
>
> allow-hotplug eth0
> iface eth0 inet dhcp
>
> On the same machine, when changing the configuration to, I get 3
> dhclient processes, one for the IPv6 (-6) and two for IPv4:
>
> allow-hotplug eth0
> iface eth0 inet dhcp
>
> iface eth0 inet6 dhcp
>
>
> I would expect that I get only one extra process for IPv6, not 2 process
> for IPv4.
Looking a bit further (thanks to systemd-cgls), it seems that with the
2nd configuration, one of the IPv4 process is started by the networking
initscript and the two others (IPv4 and IPv6) are started by the
ifup@eth0.service service.