/lib/udev/rules.d/73-idrac.rules is in udev 204-5ubuntu20.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # On Dell PowerEdge systems, the iDRAC7 and later support a USB Virtual NIC
# which terminates in the iDRAC. Help identify this with 'idrac'
ACTION=="add", SUBSYSTEM=="net", SUBSYSTEMS=="usb", ATTRS{idVendor}=="413c", ATTRS{idProduct}=="a102", NAME="idrac"
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