Hi Marvin, On Sat, Oct 25, 2025 at 02:34:22PM +0200, Marvin Gülker wrote: > I used ifupdown just out of habit like I always did. So, what I did now is > to remove ifupdown alltogether and replaced it with pure dhcpcd, which is > started on boot via a systemd service file dhcpcd.service, which seems to do > just the correct things. Installing it pulled in and enabled wpa_supplicant > for some reason, which I do not need on a server, but that was just a > oneliner to disable wpa_supplicant.service again. My machine now properly > pulls both an IPv4 and IPv6 address via DHCP. > > So, my problem is “solved” now. I leave it to you to decide what to do with > the interaction of ifupdown and dhcpcd.
I'm working on a proper fix in ifupdown, see https://lists.debian.org/debian-devel/2025/10/msg00201.html. --Daniel
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