[Bug 1726912] Re: fails to keep dhcplease

[Dan Streetman]

** Changed in: systemd (Ubuntu)
       Status: New => Fix Released

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Title:
  fails to keep dhcplease

Status in systemd package in Ubuntu:
  Fix Released

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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