[Bug 1623068] Re: Networkd fails to configure a ethernet network device on a 3.4 kernel

[Simon Fels]

Output of

  sudo SYSTEMD_LOG_LEVEL=debug /lib/systemd/systemd-networkd

ubuntu at nirvana:~$   sudo SYSTEMD_LOG_LEVEL=debug /lib/systemd/systemd-networkd
sudo: unable to resolve host nirvana: Connection refused
Failed to connect to bus, trying again in 5s: No such file or directory
timestamp of '/etc/systemd/network' changed
p2p0: Flags change: +MULTICAST +BROADCAST
p2p0: Link 7 added
p2p0: udev initialized link
p2p0: Saved original MTU: 1500
sit0: MAC address not found for new device, continuing without
sit0: Flags change: +NOARP
sit0: Link 6 added
sit0: udev initialized link
sit0: Saved original MTU: 1480
wlan0: Flags change: +MULTICAST +BROADCAST
wlan0: Link 5 added
wlan0: udev initialized link
wlan0: Saved original MTU: 1500
enx00606e43a573: Flags change: +MULTICAST +BROADCAST
enx00606e43a573: Link 4 added
enx00606e43a573: udev initialized link
enx00606e43a573: Saved original MTU: 1500
enp1s0: Flags change: +MULTICAST +BROADCAST
enp1s0: Link 3 added
enp1s0: udev initialized link
enp1s0: Saved original MTU: 1500
dummy0: Flags change: +BROADCAST +NOARP
dummy0: Link 2 added
dummy0: udev initialized link
dummy0: Saved original MTU: 1500
lo: Flags change: +LOOPBACK +UP +LOWER_UP +RUNNING
lo: Link 1 added
lo: udev initialized link
lo: Saved original MTU: 16436
lo: Adding address: ::1/128 (valid forever)
lo: Adding address: 127.0.0.1/8 (valid forever)
Enumeration completed
p2p0: Link state is up-to-date
p2p0: Unmanaged
sit0: Link state is up-to-date
sit0: Unmanaged
wlan0: Link state is up-to-date
wlan0: Unmanaged
enx00606e43a573: Link state is up-to-date
enx00606e43a573: Unmanaged
enp1s0: Link state is up-to-date
enp1s0: found matching network '/etc/systemd/network/enp1s0.network'
enp1s0: Bringing link up
enp1s0: Setting addresses
dummy0: Link state is up-to-date
dummy0: Unmanaged
lo: Link state is up-to-date
lo: Unmanaged
enp1s0: Could not bring up interface: Invalid argument
enp1s0: Updating address: 192.168.178.30/24 (valid forever)
enp1s0: Addresses set
enp1s0: Setting routes
enp1s0: Could not set route: Invalid argument
enp1s0: Routes set

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https://bugs.launchpad.net/bugs/1623068

Title:
  Networkd fails to configure a ethernet network device on a 3.4 kernel

Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  Knowing that a 3.4 based kernel is unsupported we have to get it
  working for a specific customer.

  Systemd itself boots up nicely already but networkd fails to configure
  a network device with the following configuration file in
  /etc/systemd/network

  $ cat /etc/systemd/network/enp1s0.network 
  [Match]
  Name=enp1s0

  [Network]
  DNS=8.8.8.8
  Address=192.168.178.30
  Gateway=192.168.178.1

  This gives the following error messages

  $ sudo /lib/systemd/systemd-networkd
  Enumeration completed
  enp1s0: Could not bring up interface: Invalid argument
  enp1s0: Could not set route: Invalid argument

  ifupdown or NetworkManager is reliable able to get the same interface
  up and configured.

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