you can pass the device (/dev/ppp) through to the container("Resources" > "Add" > "Device Passthrough") and set the owner permissions it should have within the container. Is there a reason this is not an option for you?
Thanks a lot for your time !!! Well TBH firing this from the host worked usually so I haven't really spent time on the question, let me test out this way, it looks clean. I'll let you know, cheers and thanks !
M.
UPDATE: hummm...
Code:
DEBUG utils - ../src/lxc/utils.c:run_buffer:560 - Script exec /usr/share/lxc/hooks/lxc-pve-autodev-hook 100 lxc autodev produced output: Could not mknod /usr/lib/x86_64-linux-gnu/lxc/rootfs/dev/ppp: File exists