"ifconfig" command gives different output than earlier in Ubuntu 16.04 LTS and eth0 is also missing from the output. How do I reset it?

Question

I am not getting eth0 when I type "ifconfig" in terminal. Even the output I get is different from the output which I used to get earlier. Below is the output which I am getting right now :-

gkv@GKVInnovations:~$ ifconfig
enp1s0    Link encap:Ethernet  HWaddr 8c:dc:d4:d2:d5:60  
      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)

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:65536  Metric:1
      RX packets:538 errors:0 dropped:0 overruns:0 frame:0
      TX packets:538 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1 
      RX bytes:41686 (41.6 KB)  TX bytes:41686 (41.6 KB)

wlo1      Link encap:Ethernet  HWaddr 30:10:b3:3d:02:30  
      inet addr:192.168.0.5  Bcast:192.168.0.255  Mask:255.255.255.0
      inet6 addr: fe80::fe8a:380d:89ea:7dce/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:2282 errors:0 dropped:0 overruns:0 frame:0
      TX packets:2183 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:1990096 (1.9 MB)  TX bytes:384929 (384.9 KB)

gkv@GKVInnovations:~$

Earlier I used to get eth0 instead of enp1s0 and I think wlan0 or wlo(I don't know it completely) instead of wlo1. I think RX and TX values are also different. I don't know more about what I used to get. But I believe there is some problem in network adapter or driver. Please help me to get default settings back and the default output which I used to get when I typed "ifconfig" in the terminal. Please help me resolve this issue !

One more thing is that I experienced this issue after using Kali Linux live mode. Earlier I was not getting that problem even in Ubuntu 16.04 LTS.

score 0 · Accepted Answer · answered Oct 05 '16 at 07:58

It was implemented to avoid a problem on computers with more than one NIC. It was never guaranteed you would get eth0 and eth1 named consistently among NICs. New way is to use hardware position of the card. It is confusing when you see it first time, but unless you have very strong reason, just don't fight it, it is not a bug, it is how it is going to be.

"ifconfig" command gives different output than earlier in Ubuntu 16.04 LTS and eth0 is also missing from the output. How do I reset it?

1 Answers1