What is eth0, wlan0, wlo1? [closed]

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I always see in Linux, when I type the command ifconfig , some names like eth0, eno1, lo, wlan1, wlo1. What do they mean?

    
asked by anonymous 23.10.2016 / 22:03

1 answer

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ifconfig , acronym for " Interface Configuration ": It is one of the most used on Linux systems to configure, add, delete, and manage the system's network interfaces.

When you want to view the network settings you type ifconfig and you get something like: 

[root@linux ~]# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:1B:B9:B3:BD:4F
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:201 Base address:0xc00

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:9439 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9439 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:5524963 (5.2 MiB)  TX bytes:5524963 (5.2 MiB)

That means:

  • ethX : Ethernet network card
  • lo : interface loopback

On Linux, wired Ethernet cards are named as eth0 (first card), eth1 (second card), eth2 (third card), and so on. In the case of wireless cards, the name changes depending on the model and the driver used. Boards configured through the ndiswrapper are identified as wlan0 , boards with Ralink chipset as ra0 and boards with Intel chipset as eth1 , in the same way as a wired card.

    
23.10.2016 / 23:55
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