Udev

Updated: September 28, 2024

udev manager determines how network interfaces should be named.

Predictable Network Interface Names

First udev starts with a two character prefix based on the type of interface.

• en for ethernet (LAN)
• wl for wireless LAN ((WLAN))
• ww for wireless wide access network (WWAN)
• lo for loopback
• br for bridge
• fw for firewire
• st for tunneling IPv4 to IPv6 standard, vice versa
• gi for generic tunneling
• vm for virtual machines

Then additionally one of the following is appended:

• o<onboard_index_#>
• s<hotplug_slot_#>fd<device_id>
• x
• Ppsfd<device_id>

APPLE

• awdl for apple wireless direct link
• p2p0 for AirDrop
• gif for unencrypted tunnel
• gre for unencrypted tunnel