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I don't have configured eth0; how can I do this?

enp63s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.1.3  netmask 255.255.255.0  broadcast 192.168.1.255
    inet6 fe80::21a:4bff:fe48:fc4c  prefixlen 64  scopeid 0x20<link>
    ether 00:1a:4b:48:fc:4c  txqueuelen 1000  (Ethernet)
    RX packets 61753  bytes 81875136 (81.8 MB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 30912  bytes 3167436 (3.1 MB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    device interrupt 19  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
    inet 127.0.0.1  netmask 255.0.0.0
    inet6 ::1  prefixlen 128  scopeid 0x10<host>
    loop  txqueuelen 1000  (Local Loopback)
    RX packets 2052  bytes 251314 (251.3 KB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 2052  bytes 251314 (251.3 KB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

interfaces:

auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet dhcp


nameserver 127.0.11
nameserver 8.8.8.8
K7AAY
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AMG Showtime
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  • @user535733 That's incorrect. Typically desktop installations use NetworkManager, and server installations use netplan. And /etc/network/interfaces is NM speak. – heynnema Jan 11 '20 at 18:22
  • You don't say what version of Ubuntu you're using. You incorrectly modified /etc/network/interfaces. Edit your question and show me cat /etc/netplan/*.yaml. Is this a desktop or server installation? – heynnema Jan 11 '20 at 18:24

1 Answers1

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This is known as Predictable Network Interface naming and is part of systemd, to which Ubuntu has been transitioning as of version 15.04.

In case you decide to revert back to the other version of naming:

How to rename network interface in 15.10?

Ahmed elesawy
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