NetworkManager[7985]: <debug> [1497862691.7490] platform: signal: link   added: 9: wwan0 <DOWN;broadcast,multicast> mtu 1500 arp 1 wwan? not-init addrgenmode eui64 addr 8A:3B:C3:C1:D3:7C driver qmi_wwan
NetworkManager[7985]: <debug> [1497862691.7613] platform: signal: link changed: 9: wwan0 <DOWN;broadcast,multicast> mtu 1500 arp 1 wwan? not-init addrgenmode eui64 addr 36:8D:BD:89:9A:86 driver qmi_wwan
NetworkManager[7985]: <debug> [1497862691.8014] platform: signal: link changed: 9: wwp0s20f0u2i4 <DOWN;broadcast,multicast> mtu 1500 arp 1 wwan? not-init addrgenmode eui64 addr 36:8D:BD:89:9A:86 driver qmi_wwan
NetworkManager[7985]: <debug> [1497862691.8077] platform-linux: UDEV event: action 'add' subsys 'net' device 'wwp0s20f0u2i4' (9); seqnum=4158
NetworkManager[7985]: <debug> [1497862691.8080] platform: signal: link changed: 9: wwp0s20f0u2i4 <DOWN;broadcast,multicast> mtu 1500 arp 1 wwan? init addrgenmode eui64 addr 36:8D:BD:89:9A:86 driver qmi_wwan
NetworkManager[7985]: <info>  [1497862691.8082] devices added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.4/net/wwp0s20f0u2i4, iface: wwp0s20f0u2i4)
NetworkManager[7985]: <info>  [1497862691.8082] device added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.4/net/wwp0s20f0u2i4, iface: wwp0s20f0u2i4): no ifupdown configuration found.
NetworkManager[7985]: <debug> [1497862691.8110] platform-linux: UDEV event: action 'move' subsys 'net' device 'wwp0s20f0u2i4' (9); seqnum=4164
NetworkManager[7985]: <debug> [1497862691.8112] platform: signal: link changed: 9: wwp0s20f0u2i4 <DOWN;broadcast,multicast> mtu 1500 arp 1 wwan? init addrgenmode eui64 addr 36:8D:BD:89:9A:86 driver qmi_wwan