Debian 13 CT Wireguard requires nesting to be disabled

[bobbobson]

as the title says, while Debian 12 Wireguard works fine with nesting=1

steps to reproduce:
apt update && apt upgrade -y
apt install wireguard
nano /etc/wireguard/wg0.conf
systemctl enable --now wg-quick@wg0

on Debian 13 with nesting=1 the systemctl command will hang, sometimes will work if started manually but will fail to start on boot. disabling nesting solves the issue but Debian 12 had no such limitation

 

[bobbobson]

the images i used were
debian-12-standard_12.7-1_amd64.tar.zst
debian-13-standard_13.1-1_amd64.tar.zst

 

[bobbobson]

after testing with the latest debian 12 image "debian-12-standard_12.12-1_amd64.tar.zst" the issue is present here too, so something changed between 12.7 and 12.12 that requires nesting to be disabled for the wireguard service to start correctly

 

[leesteken]

Wireguard works fine here before and after upgrading to 13 but I explicitly ran this in the past systemctl disable systemd-networkd-wait-online.
It would wait forever or fail and it looks like I disabled systemd-networkd-wait-online for all my (Debian) containers (but I never got to the root of the problem). Maybe this will help you too?

EDIT: Other people also ran into this: https://forum.proxmox.com/threads/debian-13-lxc-await-network-timeout.169954/ and https://forum.proxmox.com/threads/network-wait-error.143088/

 

[bobbobson]

Wireguard works fine here before and after upgrading to 13 but I explicitly ran this in the past systemctl disable systemd-networkd-wait-online.
It would wait forever or fail and it looks like I disabled systemd-networkd-wait-online for all my (Debian) containers (but I never got to the root of the problem). Maybe this will help you too?

EDIT: Other people also ran into this: https://forum.proxmox.com/threads/debian-13-lxc-await-network-timeout.169954/ and https://forum.proxmox.com/threads/network-wait-error.143088/

that seemed to solve it, thanks.