[Bug 1567744] Re: USB NICs get too long name for ifupdown aliases or bridge names

[Kalle Tuulos]

Just an update - this problem still exists in Ubuntu 16.04.3 LTS.

In case someone gets to this page due to this problem, there is a
workaround. Downside on this workaround is, that all network interface
names are then changed to eth0, eth1, eth2 etc, so one must change
settings on the /etc/network/interfaces -file so, that they work also
after this change.

Steps:
1) Update /etc/default/grub as follows:
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"

2) Update GRUB:
sudo update-grub

3) If necessary, modify /etc/network/interfaces, specially if you have
static IP addresses

4) Reboot the computer.

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https://bugs.launchpad.net/bugs/1567744

Title:
  USB NICs get too long name for ifupdown aliases or bridge names

Status in systemd package in Ubuntu:
  Triaged

Bug description:
  I have a USB NIC that is connected to my denial system. I tried to
  create an alias, and after reboot, it wasn't created. When I manually
  try to bring it up I have the error.

  /e/n/i:

  auto enx000ec688b79f
  iface enx000ec688b79f inet static
          address 10.90.90.1
          netmask 255.255.255.0

  auto enx000ec688b79f:1
  iface enx000ec688b79f:1 inet static
          address 192.168.100.1
          netmask 255.255.255.0

  ubuntu at maas00:~$ sudo ifup enx000ec688b79f
  ubuntu at maas00:~$ sudo ifup enx000ec688b79f:1
  RTNETLINK answers: Numerical result out of range
  Failed to bring up enx000ec688b79f:1.

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