I tried tcpdump only on both devices. I did ping from hrem154.nano.tudelft.nl to 10.9.9.9. this request come in on the enp0s25 device while 10.9.9.9 should go out by the tun0 device. I can see echo requests marked on both devices marked hrem154.nano.tudelft.nl > 10.9.9.9, but nothing in the other direction. If I ping to 10.9.9.9 on the machine itself I see traffic in 2 directions. Jouk _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure