Hi. On Wed, Feb 16, 2022 at 03:55:21AM -0600, Flacusbigotis wrote: > Back in Debian Buster, I learned that the "predictive" naming of this USB > ethernet interface would be governed by "73-usb-net-by-mac.rules" and so I > had it configured accordingly with a config file in > /etc/network/interfaces.d/... Namely that the device name would basically > be its MAC.
It's still true in Bullseye, but the implementation has changed somewhat. Instead of /lib/udev/rules.d/73-usb-net-by-mac.rules now systemd uses /lib/systemd/network/73-usb-net-by-mac.link. > Well, I just upgraded to Bullseye, and I can't bring up the darn > interface. I have tried fiddling around with the device name in my config > file in /etc/network/interfaces.d/ directory, but it just won't come up. > The Networking.service also fails during bootup. A straightforward approach would be to learn the actual name of the device via "ip a"/"ifconfig -a", and then using that name in /e/n/i. > Anyone know how the heck this is supposed to work in Bullseye? systemd.link(5), systemd.net-naming-scheme(7). The keyword you need is NamePolicy=mac. > BTW, the device shows up as disabled in lshw (I obfuscated the MAC in the > output): > > *-network DISABLED That could mean anything. Please show the output of "ip a". Reco
