Hi. On Mon, Jul 12, 2021 at 12:16:59PM +0200, Michael Lange wrote:
This: > With ifconfig the enp2s0 interface appears to be up, combined with this: > I suspected udev to have for some reason changed the interface name; does not add up. If, for some reason, an interface name had changed - you won't see "enp2s0" in the ifconfig output. > some sources I found suggest to look at > /etc/udev/rules.d/70-persistent-net.rules but there is nothing in that > file that is not commented out, so I guess that this mechanism may be > outdated. It is outdated, and that file should not be present at all. > The output of `systemctl status networking.service` looks like this: In other words, it is useless. A usual thing, nothing unexpected. Troubleshooting steps: 1) Obtain tcpdump unless it's installed already. 2) As root, run "tcpdump -pni any udp port 67 or udp port 68", and let it run for a while. 3) As root, run "dhclient enp2s0". 4) Wait for a minute or so, terminate both tcpdump and dhclient. 5) Post the output of steps 2 and 3, plain text preferred, add an output of "ip a" for a good measure please. Reco
