Setup MC7455 connection to internet with modem manager

[Nassim Dahmani]

Hi everyone,

I'm trying to setup an internet connection for a box with a MC7455 on
ubuntu 17.04. I'm a newbie on this so some help would be nice

~$ sudo mmcli -b 0
Bearer '/org/freedesktop/ModemManager1/Bearer/0'
-------------------------
Status | connected: 'yes'
| suspended: 'no'
| interface: 'wwp0s20f0u6i8'
| IP timeout: '20'
-------------------------
Properties | apn: 'mmsbouygtel.com'
| roaming: 'allowed'
| IP type: 'none'
| user: 'none'
| password: 'none'
| number: 'none'
| Rm protocol: 'unknown'
-------------------------
IPv4 configuration | method: 'static'
| address: '10.212.108.250'
| prefix: '30'
| gateway: '10.212.108.249'
| DNS: '62.201.129.99', '62.201.159.99'
| MTU: '1500'
-------------------------
IPv6 configuration | method: 'unknown'
-------------------------
Stats | Duration: '329'
| Bytes received: 'N/A'
| Bytes transmitted: 'N/A'

but my interface isn't up

~$ ifconfig
enp0s31f6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet netmask 255.255.255.0 broadcast
inet6 prefixlen 64 scopeid 0x20<link>
ether txqueuelen 1000 (Ethernet)
RX packets 1454 bytes 138198 (138.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 231 bytes 32199 (32.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16 memory 0xdf300000-df320000

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Boucle locale)
RX packets 700 bytes 52204 (52.2 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 700 bytes 52204 (52.2 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

and when I bring it up

~$ sudo ifconfig wwp0s20f0u6i8 up

I don't have any ip address

wwp0s20f0u6i8: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500
inet6 fe80::ef2d:ce86:2e80:bfa4 prefixlen 64 scopeid 0x20<link>
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 1000
(UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 576 (576.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

I tried dhclient

sudo dhclient wwp0s20f0u6i8 -v

But it returns an error

Internet Systems Consortium DHCP Client 4.3.5
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Unsupported device type 65534 for "wwp0s20f0u6i8"

If you think you have received this message due to a bug rather
than a configuration issue please read the section on submitting
bugs on either our web page at www.isc.org or in the README file
before submitting a bug. These pages explain the proper
process and the information we find helpful for debugging..

exiting.

Thank you in advance for your help
Regards
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