T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 16 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1199 ProdID=68c0 Rev=00.06
S:  Manufacturer=Sierra Wireless, Incorporated
S:  Product=MC7304
C:  #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial
I:  If#= 8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan

mmcli -m 0
  --------------------------------
  General  |            dbus path: /org/freedesktop/ModemManager1/Modem/0
           |            device id: af85bd1043ebcb47f073463fd59bfb72ef38e6f0
  --------------------------------
  Hardware |         manufacturer: Sierra Wireless, Incorporated
           |                model: MC7304
           |    firmware revision: SWI9X15C_05.05.78.00 r34310 CARMD-EV-FRMWR3 2017/09/17 00:43:17
           |         h/w revision: 1.0
           |            supported: gsm-umts, lte
           |              current: gsm-umts, lte
           |         equipment id: 356853050080433
  --------------------------------
  System   |               device: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2
           |              drivers: qcserial, qmi_wwan
           |               plugin: Sierra
           |         primary port: cdc-wdm0
           |                ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB2 (at), wwan0 (net)
  --------------------------------
  Numbers  |                  own: 4917667122822
  --------------------------------
  Status   |                 lock: sim-pin2
           |       unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)
           |                state: connected
           |          power state: on
           |          access tech: lte
           |       signal quality: 52% (recent)
  --------------------------------
  Modes    |            supported: allowed: 2g; preferred: none
           |                       allowed: 3g; preferred: none
           |                       allowed: 4g; preferred: none
           |                       allowed: 2g, 3g; preferred: 3g
           |                       allowed: 2g, 3g; preferred: 2g
           |                       allowed: 2g, 4g; preferred: 4g
           |                       allowed: 2g, 4g; preferred: 2g
           |                       allowed: 3g, 4g; preferred: 3g
           |                       allowed: 3g, 4g; preferred: 4g
           |                       allowed: 2g, 3g, 4g; preferred: 4g
           |                       allowed: 2g, 3g, 4g; preferred: 3g
           |                       allowed: 2g, 3g, 4g; preferred: 2g
           |              current: allowed: 2g, 3g, 4g; preferred: 4g
  --------------------------------
  Bands    |            supported: egsm, dcs, pcs, g850, utran-1, utran-6, utran-5, utran-8, 
           |                       utran-2, eutran-1, eutran-3, eutran-7, eutran-8, eutran-20
           |              current: egsm, dcs, pcs, g850, utran-1, utran-5, utran-8, utran-2, 
           |                       eutran-1, eutran-3, eutran-7, eutran-8, eutran-20
  --------------------------------
  IP       |            supported: ipv4, ipv6, ipv4v6
  --------------------------------
  3GPP     |                 imei: 356853050080433
           |          operator id: 26203
           |        operator name: o2-de
           |         registration: home
  --------------------------------
  3GPP EPS | ue mode of operation: csps-2
  --------------------------------
  SIM      |            dbus path: /org/freedesktop/ModemManager1/SIM/0
  --------------------------------
  Bearer   |            dbus path: /org/freedesktop/ModemManager1/Bearer/0
  
  
mmcli -b 0
  --------------------------------
  General            |  dbus path: /org/freedesktop/ModemManager1/Bearer/0
                     |       type: default
  --------------------------------
  Status             |  connected: yes
                     |  suspended: no
                     |  interface: wwan0
                     | ip timeout: 20
  --------------------------------
  Properties         |        apn: internet
                     |    roaming: allowed
                     |    ip type: ipv4v6
  --------------------------------
  IPv4 configuration |     method: static
                     |    address: 10.131.32.126
                     |     prefix: 30
                     |    gateway: 10.131.32.125
                     |        dns: 62.109.121.17, 62.109.121.18
                     |        mtu: 1430
  --------------------------------
  IPv6 configuration |     method: static
                     |    address: 2a02:3033:400:a335:443e:ab10:6cf9:2c38
                     |     prefix: 64
                     |    gateway: 2a02:3033:400:a335:6cfb:fe0c:bc89:74c6
                     |        dns: 2a02:3018:0:40ff::aaaa, 2a02:3018:0:40ff::bbbb
                     |        mtu: 1430
  --------------------------------
  Statistics         |   duration: 150
                     |   bytes rx: 112527
                     |   bytes tx: 58715

nmcli device show cdc-wdm0 
GENERAL.DEVICE:                         cdc-wdm0
GENERAL.TYPE:                           gsm
GENERAL.HWADDR:                         (unbekannt)
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (verbunden)
GENERAL.CONNECTION:                     O2
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/10
IP4.ADDRESS[1]:                         10.131.32.126/30
IP4.GATEWAY:                            10.131.32.125
IP4.ROUTE[1]:                           dst = 10.131.32.124/30, nh = 0.0.0.0, mt = 700
IP4.ROUTE[2]:                           dst = 0.0.0.0/0, nh = 10.131.32.125, mt = 700
IP4.DNS[1]:                             62.109.121.17
IP4.DNS[2]:                             62.109.121.18
IP6.ADDRESS[1]:                         2a02:3033:400:a335:443e:ab10:6cf9:2c38/64
IP6.GATEWAY:                            2a02:3033:400:a335:6cfb:fe0c:bc89:74c6
IP6.ROUTE[1]:                           dst = ff00::/8, nh = ::, mt = 256, table=255
IP6.ROUTE[2]:                           dst = 2a02:3033:400:a335::/64, nh = ::, mt = 700
IP6.ROUTE[3]:                           dst = ::/0, nh = fe80::6cfb:fe0c:bc89:74c6, mt = 1024
IP6.ROUTE[4]:                           dst = 2a02:3033:400:a335::/64, nh = ::, mt = 256
IP6.ROUTE[5]:                           dst = ::/0, nh = 2a02:3033:400:a335:6cfb:fe0c:bc89:74c6, mt = 700
IP6.DNS[1]:                             2a02:3018:0:40ff::aaaa
IP6.DNS[2]:                             2a02:3018:0:40ff::bbbb

linux-y7a7:~ # ping -c3 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=113 time=63.2 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=113 time=14.9 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=113 time=17.5 ms

--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 14.923/31.886/63.233/22.191 ms
linux-y7a7:~ # ping -c3 2600::
PING 2600::(2600::) 56 data bytes
64 bytes from 2600::: icmp_seq=1 ttl=44 time=216 ms
64 bytes from 2600::: icmp_seq=2 ttl=44 time=157 ms
64 bytes from 2600::: icmp_seq=3 ttl=44 time=154 ms

--- 2600:: ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 154.799/176.302/216.305/28.316 ms

linux-y7a7:~ # ping -c3 -M do -s 1382 ct.de
PING ct.de(redirector.heise.de (2a02:2e0:3fe:1001:302::)) 1382 data bytes
1390 bytes from redirector.heise.de (2a02:2e0:3fe:1001:302::): icmp_seq=1 ttl=50 time=47.2 ms
1390 bytes from redirector.heise.de (2a02:2e0:3fe:1001:302::): icmp_seq=2 ttl=50 time=30.7 ms
1390 bytes from redirector.heise.de (2a02:2e0:3fe:1001:302::): icmp_seq=3 ttl=50 time=36.4 ms

--- ct.de ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 30.763/38.154/47.208/6.819 ms
linux-y7a7:~ # ping -c3 -M do -s 1383 ct.de
PING ct.de(redirector.heise.de (2a02:2e0:3fe:1001:302::)) 1383 data bytes
ping: sendmsg: Die Nachricht ist zu lang
ping: sendmsg: Die Nachricht ist zu lang
ping: sendmsg: Die Nachricht ist zu lang

--- ct.de ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2033ms

linux-y7a7:~ #
