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7.4.1. Network Devices

Udev, by default, names network devices according to Firmware/BIOS data or physical characteristics like the bus, slot, or MAC address. The purpose of this naming convention is to ensure that network devices are named consistently and not based on the time the network card was discovered. For example, on a computer having two network cards made by Intel and Realtek, the network card manufactured by Intel may become eth0 and the Realtek card becomes eth1. In some cases, after a reboot the cards get renumbered the other way around.

In the new naming scheme, typical network device names would then be something like enp5s0 or wlp3s0. If this naming convention is not desired, the traditional naming scheme or a custom scheme can be implemented.


 

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