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On my Ubuntu 17.04 Server the Loopback Interface keeps beeing renamed to "rename1" during boot (Syslog: rename1: renamed from lo).

I tried to disabling renaming by editing grub.conf: GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"

I have no files in /etc/udev/rules.d/.

ifconfig outputs the following:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
      ...
rename1: 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 8  bytes 544 (544.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 8  bytes 544 (544.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

How can I permanently change the name of the loopback interface to lo?

My /etc/network/interfaces conatins the following:

# The loopback network interface
auto lo
iface lo inet loopback
  • Check for the ifrename package, if there is, simply uninstalling it may be also a solution. – peterh says reinstate Monica Apr 28 '17 at 15:13
  • There is no such package installed. – mjr Apr 28 '17 at 18:48
  • I would do grep -r rename1 /etc and the offending file will probably show up. – Michael Hampton Feb 22 '18 at 23:53
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Take a look in /etc/network/interfaces I'm not sure if 17.04 keeps it there but that's where its been in the past.

  • Not sure what I should change there. In my interfaces I have the configuration for lo, but it doesn't work (see updated Question). – mjr Apr 28 '17 at 14:36

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