What are the interface prefix meanings in ifconfig? I'm not sure if these have a name, but on most computers I use the interface prefixes are usually: * eth- : Ethernet/Wired * wlan- : Wireless/WiFi However, o...--prophetes.ai

What are the interface prefix meanings in ifconfig? I'm not sure if these have a name, but on most computers I use the interface prefixes are usually: * eth- : Ethernet/Wired * wlan- : Wireless/WiFi However, on my ASUS RT-N56U, I have the following: * br0 : 'Ethernet' - Bridge? * eth2 : 'Ethernet', IPv6 (where are 0 and 1?) * eth3 : 'Ethernet', IPv4 (the one with my WAN IP) * lo : 'Local Loopback' - What's this for? * ra0 : 'Ethernet' - ? * rai0 : 'Ethernet' - ? Are there others? What do they mean?

From the `ASUS RT-N56U` wiki page:

What are the existing network interfaces (transcript naming interfaces)?

br0 = LAN + WLAN + AP-Client + WDS
eth2 = Ethernet interface GMAC1, that connected to the switch (trunk port).
eth2.1 = LAN (VLAN VID1)
eth2.2 = WAN (VLAN VID2)
ra0 = WLAN 5GHz
ra1 = WLAN 5GHz Guest
rai0 = WLAN 2.4GHz
rai1 = WLAN 2.4GHz Guest
apcli0 = AP-Client 5GHz
apclii0 = AP-Client 2.4GHz
wds0-wds3 = WDS 5GHz
wdsi0-wdsi3 = WDS 2.4GHz

In the no-VLAN firmware

eth2 = LAN
eth3 = WAN