How to use Huawei mobile broadband moden E3372 on Ubuntu 20.04.3 Server?
Bo Berglund
bo.berglund at gmail.com
Fri Dec 17 11:39:34 UTC 2021
I have a USB mobile broadband modem Huawei E3372, which works fine on Raspberry
Pi4.
Now I want to use it as a backup connection on my Ubuntu server so I plugged it
in there and it obtains a connection as shown by the blue lamp coming on after a
while.
But I get no info on Ubuntu command line:
$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.119.216 netmask 255.255.255.0 broadcast 192.168.119.255
ether a4:ae:12:7f:4d:c3 txqueuelen 1000 (Ethernet)
RX packets 31586730 bytes 37388071202 (37.3 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 22813892 bytes 22378617526 (22.3 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
On the RPi4 it looks like this:
$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.119.164 netmask 255.255.255.0 broadcast 192.168.119.255
inet6 fe80::3337:b743:ab20:ba24 prefixlen 64 scopeid 0x20<link>
ether dc:a6:32:34:83:f8 txqueuelen 1000 (Ethernet)
RX packets 1438292 bytes 316735023 (302.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 229894 bytes 13805670 (13.1 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.8.106 netmask 255.255.255.0 broadcast 192.168.8.255
inet6 fe80::f979:ae78:fd83:1c35 prefixlen 64 scopeid 0x20<link>
inet6 2a02:aa1:162e:877d:1329:c23f:b7ce:af71 prefixlen 64 scopeid
0x0<global>
inet6 2a02:aa1:162e:877d:10:2030:4050:2 prefixlen 128 scopeid
0x0<global>
ether 00:1e:10:1f:00:00 txqueuelen 1000 (Ethernet)
RX packets 27 bytes 3265 (3.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 50 bytes 6817 (6.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
So now I want to know how I can get it to work on Ubuntu...
In an old reply on AskUbuntu they said I should test using ip link, which
results in this:
$ ip link
7: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group
default qlen 1000
link/ether 00:1e:10:1f:00:00 brd ff:ff:ff:ff:ff:ff
Note that eth1 *is* mentioned here but is not shown by ifconfig...
Any ideas where to go from here?
--
Bo Berglund
Developer in Sweden
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