[Bug 1812680] Re: gre tunnels are down after netplan apply

[Tomasz P.]

** Project changed: netplan => netplan.io (Ubuntu)

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https://bugs.launchpad.net/bugs/1812680

Title:
  gre tunnels are down after netplan apply

Status in netplan.io package in Ubuntu:
  New

Bug description:
  After configuring gre tunnels via netplan the tunX devices are in the
  state down. I need to manually bring them up in order to have
  connectivity with another end of the tunnel.

  Netplan file:

  network:
    version: 2
    renderer: networkd
    tunnels:
      tun0:
        mode: gre
        local: 1.1.1.1
        remote: 2.2.2.2
        addresses:
          - 10.7.10.50/30
      tun1:
        mode: gre
        local: 3.3.3.3
        remote: 4.4.4.4
        addresses:
          - 10.7.10.54/30

  
  Output of ip a:
  16: tun1 at NONE: <POINTOPOINT,NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
      link/gre 1.1.1.1 peer 2.2.2.2
      inet 10.7.10.54/30 brd 10.7.10.55 scope global tun1
         valid_lft forever preferred_lft forever
  17: tun0 at NONE: <POINTOPOINT,NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
      link/gre 3.3.3.3 peer 4.4.4.4
      inet 10.7.10.50/30 brd 10.7.10.51 scope global tun0
         valid_lft forever preferred_lft forever

  
  Netplan version: 0.95-1
  Systemd: 237

  Networkd config files:
   cat 10-netplan-tun0*
  [NetDev]
  Name=tun0
  Kind=gre

  [Tunnel]
  Independent=true
  Local=1.1.1.1
  Remote=2.2.2.2

  [Match]
  Name=tun0

  [Network]
  LinkLocalAddressing=ipv6
  Address=10.7.10.50/30
  ConfigureWithoutCarrier=yes

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