/lib/systemd/network/90-mac-for-usb.link is in udev 229-4ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | # Use MAC based names for network interfaces which are (directly or indirectly)
# on USB. Path based names are inadequate for dynamic buses like USB.
[Match]
Path=*-usb-*
[Link]
NamePolicy=kernel database onboard mac
MACAddressPolicy=persistent
|