[Bug 1643063] Re: unable to ifup vlan based interface with systemd persistent naming

[Andrei Coada]

*** This bug is a duplicate of bug 1628591 ***
    https://bugs.launchpad.net/bugs/1628591

Check out my alternative workaround from duplicate bug #1628591. In my opinion, it's cleaner.
I haven't heard of vconfig to be deprecated.

Anyway... it's funny how we must do workarounds for basic functionality,
such as networking.

In Debian 9 Stretch, you don't have to do any of this. It works out-of-
the-box with both "eth" and "enp" naming conventions.

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https://bugs.launchpad.net/bugs/1643063

Title:
  unable to ifup vlan based interface with systemd persistent naming

Status in ifupdown package in Ubuntu:
  Confirmed

Bug description:
  root at atlantis:/etc# ifup enp2s0.121
  Cannot find device "enp2s0.121"
  Failed to bring up enp2s0.121.

  Workaround:
  Add
      pre-up /sbin/ip link add link enp2s0 name enp2s0.121 type vlan id 121
  to /etc/network/interfaces declaration.

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