[Bug 1726912] [NEW] fails to keep dhcplease

[Jon Proulx]

Public bug reported:

Not 100% sure if this is a networkd bug or a nplan bug, but...

On new install of 17.10 systemd-networkd loops with:

Oct 23 16:45:24 san-jose systemd[1]: Starting Network Service...
Oct 23 16:45:24 san-jose systemd-networkd[1217]: enp129s0f0: Gained IPv6LL
Oct 23 16:45:24 san-jose systemd-networkd[1217]: Enumeration completed
Oct 23 16:45:24 san-jose systemd[1]: Started Network Service.
Oct 23 16:45:25 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
Oct 23 16:45:27 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: Lost carrier
Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: DHCP lease lost
Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
Oct 23 16:45:29 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: Configured
Oct 23 16:45:30 san-jose systemd-networkd[1217]: enp129s0f0: Lost carrier
Oct 23 16:45:30 san-jose systemd-networkd[1217]: enp129s0f0: DHCP lease lost

that is the correct interface and address.

If I manually run 'dhclient nep129s0f0' the lease sticks and 'journalctl
-fu systemd-networkd' shows:

Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
Oct 23 16:45:34 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: Configured

installer generated 01-netcfg.yaml:

network:
  version: 2
  renderer: networkd
  ethernets:
    enp129s0f0:
      dhcp4: yes

root at host:~#  lsb_release -rd;uname -r ; dpkg -l nplan  systemd
Description:	Ubuntu 17.10
Release:	17.10
4.13.0-16-generic
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name               Version        Architecture   Description
+++-==================-==============-==============-=========================================
ii  nplan              0.30           amd64          YAML network configuration abstraction fo
ii  systemd            234-2ubuntu12  amd64          system and service manager


my current workaround:

root at host:~# cat /etc/rc.local
#!/bin/sh
dhclient enp129s0f0

** Affects: nplan (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1726912

Title:
  fails to keep dhcplease

Status in nplan package in Ubuntu:
  New

Bug description:
  Not 100% sure if this is a networkd bug or a nplan bug, but...

  On new install of 17.10 systemd-networkd loops with:

  Oct 23 16:45:24 san-jose systemd[1]: Starting Network Service...
  Oct 23 16:45:24 san-jose systemd-networkd[1217]: enp129s0f0: Gained IPv6LL
  Oct 23 16:45:24 san-jose systemd-networkd[1217]: Enumeration completed
  Oct 23 16:45:24 san-jose systemd[1]: Started Network Service.
  Oct 23 16:45:25 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
  Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
  Oct 23 16:45:27 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
  Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: Lost carrier
  Oct 23 16:45:27 san-jose systemd-networkd[1217]: enp129s0f0: DHCP lease lost
  Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
  Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
  Oct 23 16:45:29 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
  Oct 23 16:45:29 san-jose systemd-networkd[1217]: enp129s0f0: Configured
  Oct 23 16:45:30 san-jose systemd-networkd[1217]: enp129s0f0: Lost carrier
  Oct 23 16:45:30 san-jose systemd-networkd[1217]: enp129s0f0: DHCP lease lost

  that is the correct interface and address.

  If I manually run 'dhclient nep129s0f0' the lease sticks and
  'journalctl -fu systemd-networkd' shows:

  Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: Gained carrier
  Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: DHCPv4 address 128.30.3.94/24 via 12
  Oct 23 16:45:34 san-jose systemd-networkd[1217]: Could not set hostname: The name org.freedesktop
  Oct 23 16:45:34 san-jose systemd-networkd[1217]: enp129s0f0: Configured

  installer generated 01-netcfg.yaml:

  network:
    version: 2
    renderer: networkd
    ethernets:
      enp129s0f0:
        dhcp4: yes

  root at host:~#  lsb_release -rd;uname -r ; dpkg -l nplan  systemd
  Description:	Ubuntu 17.10
  Release:	17.10
  4.13.0-16-generic
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name               Version        Architecture   Description
  +++-==================-==============-==============-=========================================
  ii  nplan              0.30           amd64          YAML network configuration abstraction fo
  ii  systemd            234-2ubuntu12  amd64          system and service manager

  
  my current workaround:

  root at host:~# cat /etc/rc.local
  #!/bin/sh
  dhclient enp129s0f0

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