Public bug reported:
Network issue no IPv6 using Sierra Wireless EM7421 and mbim
Description: Ubuntu Jammy Jellyfish
Release: 22.04
Linux 5.15.0-25-generic
I need to connect via GSM to Internet using IPv6.
IPv6 not present in config.
Internet connect works with IPv4 although issues seem to exist.
EXPECTATION:
IPv6 shall work properly like the EM7455 with same card in very similar
machine, Ubuntu. Using the same driver=cdc_mbim
ENVIRONMENT:
SIM is working properly,
EM7421 latest firmware applied,
EM7421 capable doing IPv6 with this setup (according to spec + test with
Win10);
"package" unknown, sorry.
ASSUMPTION:
Missing IPv6 is a wrong config / bug in software.
IPv6 communication can be enabled.
Some enhancement / fix can enable IPv6 communication.
details:
Actually no IPv6 available at all (IPv6 is expected to work):
3: wwan0: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UNKNOWN group default qlen 1000
link/ether 6a:05:2c:26:95:58 brd ff:ff:ff:ff:ff:ff
inet 10.34.85.36/29 brd 10.34.85.39 scope global noprefixroute wwan0
This is the Sierra Wireless GSM-Modem (working):
sudo mbimcli --device=/dev/cdc-wdm0 --query-device-caps
[/dev/cdc-wdm0] Device capabilities retrieved:
Device type: 'remote'
Cellular class: 'gsm'
Voice class: 'no-voice'
SIM class: 'removable'
Data class: 'umts, hsdpa, hsupa, lte'
SMS caps: 'pdu-receive, pdu-send'
Ctrl caps: 'reg-manual'
Max sessions: '8'
Custom data class: 'unknown'
Device ID: '356706140353162'
Firmware info: 'SWI9X50C_01.14.03.00'
Hardware info: 'EM7421'
Attempt to start modem via mbim:
pre:
sudo service network-manager stop
sudo systemctl disable ModemManager
then
Report
sudo mbim-network /dev/cdc-wdm0 start
Profile at '/etc/mbim-network.conf' not found...
Querying subscriber ready status 'mbimcli -d /dev/cdc-wdm0
--query-subscriber-ready-status --no-close'...
[/dev/cdc-wdm0] Subscriber ready status retrieved: Ready state: 'initialized'
Subscriber ID: '262011905110762' SIM ICCID: '89490200001788157884' Ready info:
'none' Telephone numbers: (1) '+491604282867' [/dev/cdc-wdm0] Session not
closed: TRID: '3'
Querying registration state 'mbimcli -d /dev/cdc-wdm0
--query-registration-state --no-open=3 --no-close'...
[/dev/cdc-wdm0] Registration status: Network error: 'unknown' Register state:
'home' Register mode: 'automatic' Available data classes: 'lte' Current
cellular class: 'gsm' Provider ID: '26201' Provider name: 'Telekom.de' Roaming
text: 'unknown' Registration flags: 'packet-service-automatic-attach'
[/dev/cdc-wdm0] Session not closed: TRID: '4'
Attaching to packet service with 'mbimcli -d /dev/cdc-wdm0
--attach-packet-service --no-open=4 --no-close'...
[/dev/cdc-wdm0] Successfully attached to packet service [/dev/cdc-wdm0] Packet
service status: Network error: 'unknown' Packet service state: 'attached'
Available data classes: 'lte' Uplink speed: '150000000 bps' Downlink speed:
'300000000 bps' [/dev/cdc-wdm0] Session not closed: TRID: '5'
Starting network with 'mbimcli -d /dev/cdc-wdm0 --connect=apn='' --no-open=5
--no-close'...
Network started successfully
Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 7)
status reported by ip a :
3: wwan0: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc fq_codel state DOWN group
default qlen 1000
link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
try to bring it up:
sudo ip link set dev wwan0 up
(no error reported)
new status reported by
ip a :
3: wwan0: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UNKNOWN group default qlen 1000
link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
(All SIM / telephony / GSM data above is real; please handle with care)
lshw reporting on USB and the like
*-usb:2
description: USB controller
product: Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller
vendor: Intel Corporation
physical id: 14
bus info: pci@0000:00:14.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: pm msi xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:155 memory:5c420000-5c42ffff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 5.15.0-25-generic xhci-hcd
physical id: 0
bus info: usb@3
logical name: usb3
version: 5.15
capabilities: usb-2.00
configuration: driver=hub slots=12 speed=480Mbit/s
*-usb:0
description: Communication device
product: EM7421
vendor: Sierra Wireless, Incorporated
physical id: 3
bus info: usb@3:3
version: 0.06
serial: 8G1202758803B121
capabilities: usb-2.00
configuration: driver=cdc_mbim maxpower=500mA speed=480Mbit/s
** Affects: ubuntu
Importance: Undecided
Status: New
** Description changed:
Network issue no IPv6 using Sierra Wireless EM7421 and mbim
- Description: Ubuntu Jammy Jellyfish
+ Description: Ubuntu Jammy Jellyfish
Release: 22.04
Linux 5.15.0-25-generic
- I need to connect via GSM to Internet using IPv6.
- IPv6 not present in config.
- Internet connect works with IPv4 although issues seem to exist.
+ I need to connect via GSM to Internet using IPv6.
+ IPv6 not present in config.
+ Internet connect works with IPv4 although issues seem to exist.
EXPECTATION:
- Shall work properly like the EM7455 with same card in very similar machine,
Ubuntu. Using the same driver=cdc_mbim
+ IPv6 shall work properly like the EM7455 with same card in very similar
machine, Ubuntu. Using the same driver=cdc_mbim
- ENVIRONMENT:
- SIM is working properly,
- EM7421 latest firmware applied,
- EM7421 capable doing IPv6 with this setup (according to spec + test with
Win10);
- "package" unknown, sorry.
+ ENVIRONMENT:
+ SIM is working properly,
+ EM7421 latest firmware applied,
+ EM7421 capable doing IPv6 with this setup (according to spec + test with
Win10);
+ "package" unknown, sorry.
ASSUMPTION:
- Missing IPv6 is a wrong config / bug in software.
- IPv6 communication can be enabled.
- Some enhancement / fix can enable IPv6 communication.
-
+ Missing IPv6 is a wrong config / bug in software.
+ IPv6 communication can be enabled.
+ Some enhancement / fix can enable IPv6 communication.
details:
Actually no IPv6 available at all (IPv6 is expected to work):
3: wwan0: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 1000
- link/ether 6a:05:2c:26:95:58 brd ff:ff:ff:ff:ff:ff
- inet 10.34.85.36/29 brd 10.34.85.39 scope global noprefixroute wwan0
-
-
+ link/ether 6a:05:2c:26:95:58 brd ff:ff:ff:ff:ff:ff
+ inet 10.34.85.36/29 brd 10.34.85.39 scope global noprefixroute wwan0
This is the Sierra Wireless GSM-Modem (working):
sudo mbimcli --device=/dev/cdc-wdm0 --query-device-caps
[/dev/cdc-wdm0] Device capabilities retrieved:
- Device type: 'remote'
- Cellular class: 'gsm'
- Voice class: 'no-voice'
- SIM class: 'removable'
- Data class: 'umts, hsdpa, hsupa, lte'
- SMS caps: 'pdu-receive, pdu-send'
- Ctrl caps: 'reg-manual'
- Max sessions: '8'
- Custom data class: 'unknown'
- Device ID: '356706140353162'
- Firmware info: 'SWI9X50C_01.14.03.00'
- Hardware info: 'EM7421'
+ Device type: 'remote'
+ Cellular class: 'gsm'
+ Voice class: 'no-voice'
+ SIM class: 'removable'
+ Data class: 'umts, hsdpa, hsupa, lte'
+ SMS caps: 'pdu-receive, pdu-send'
+ Ctrl caps: 'reg-manual'
+ Max sessions: '8'
+ Custom data class: 'unknown'
+ Device ID: '356706140353162'
+ Firmware info: 'SWI9X50C_01.14.03.00'
+ Hardware info: 'EM7421'
- Attempt to start modem via mbim:
+ Attempt to start modem via mbim:
pre:
sudo service network-manager stop
sudo systemctl disable ModemManager
then
- Report
+ Report
sudo mbim-network /dev/cdc-wdm0 start
Profile at '/etc/mbim-network.conf' not found...
Querying subscriber ready status 'mbimcli -d /dev/cdc-wdm0
--query-subscriber-ready-status --no-close'...
[/dev/cdc-wdm0] Subscriber ready status retrieved: Ready state: 'initialized'
Subscriber ID: '262011905110762' SIM ICCID: '89490200001788157884' Ready info:
'none' Telephone numbers: (1) '+491604282867' [/dev/cdc-wdm0] Session not
closed: TRID: '3'
Querying registration state 'mbimcli -d /dev/cdc-wdm0
--query-registration-state --no-open=3 --no-close'...
[/dev/cdc-wdm0] Registration status: Network error: 'unknown' Register state:
'home' Register mode: 'automatic' Available data classes: 'lte' Current
cellular class: 'gsm' Provider ID: '26201' Provider name: 'Telekom.de' Roaming
text: 'unknown' Registration flags: 'packet-service-automatic-attach'
[/dev/cdc-wdm0] Session not closed: TRID: '4'
Attaching to packet service with 'mbimcli -d /dev/cdc-wdm0
--attach-packet-service --no-open=4 --no-close'...
[/dev/cdc-wdm0] Successfully attached to packet service [/dev/cdc-wdm0]
Packet service status: Network error: 'unknown' Packet service state:
'attached' Available data classes: 'lte' Uplink speed: '150000000 bps' Downlink
speed: '300000000 bps' [/dev/cdc-wdm0] Session not closed: TRID: '5'
Starting network with 'mbimcli -d /dev/cdc-wdm0 --connect=apn='' --no-open=5
--no-close'...
Network started successfully
Saving state at /tmp/mbim-network-state-cdc-wdm0... (TRID: 7)
- status reported by ip a :
+ status reported by ip a :
3: wwan0: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc fq_codel state DOWN
group default qlen 1000
- link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
+ link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
try to bring it up:
sudo ip link set dev wwan0 up
(no error reported)
- new status reported by
- ip a :
+ new status reported by
+ ip a :
3: wwan0: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UNKNOWN group default qlen 1000
- link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
+ link/ether 86:a6:1f:1a:ce:30 brd ff:ff:ff:ff:ff:ff
(All SIM / telephony / GSM data above is real; please handle with care)
+ lshw reporting on USB and the like
- lshw reporting on USB and the like
-
- *-usb:2
- description: USB controller
- product: Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller
- vendor: Intel Corporation
- physical id: 14
- bus info: pci@0000:00:14.0
- version: 20
- width: 64 bits
- clock: 33MHz
- capabilities: pm msi xhci bus_master cap_list
- configuration: driver=xhci_hcd latency=0
- resources: irq:155 memory:5c420000-5c42ffff
- *-usbhost:0
- product: xHCI Host Controller
- vendor: Linux 5.15.0-25-generic xhci-hcd
- physical id: 0
- bus info: usb@3
- logical name: usb3
- version: 5.15
- capabilities: usb-2.00
- configuration: driver=hub slots=12 speed=480Mbit/s
- *-usb:0
- description: Communication device
- product: EM7421
- vendor: Sierra Wireless, Incorporated
- physical id: 3
- bus info: usb@3:3
- version: 0.06
- serial: 8G1202758803B121
- capabilities: usb-2.00
- configuration: driver=cdc_mbim maxpower=500mA
speed=480Mbit/s
+ *-usb:2
+ description: USB controller
+ product: Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller
+ vendor: Intel Corporation
+ physical id: 14
+ bus info: pci@0000:00:14.0
+ version: 20
+ width: 64 bits
+ clock: 33MHz
+ capabilities: pm msi xhci bus_master cap_list
+ configuration: driver=xhci_hcd latency=0
+ resources: irq:155 memory:5c420000-5c42ffff
+ *-usbhost:0
+ product: xHCI Host Controller
+ vendor: Linux 5.15.0-25-generic xhci-hcd
+ physical id: 0
+ bus info: usb@3
+ logical name: usb3
+ version: 5.15
+ capabilities: usb-2.00
+ configuration: driver=hub slots=12 speed=480Mbit/s
+ *-usb:0
+ description: Communication device
+ product: EM7421
+ vendor: Sierra Wireless, Incorporated
+ physical id: 3
+ bus info: usb@3:3
+ version: 0.06
+ serial: 8G1202758803B121
+ capabilities: usb-2.00
+ configuration: driver=cdc_mbim maxpower=500mA
speed=480Mbit/s
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https://bugs.launchpad.net/bugs/1969241
Title:
Network issue no IPv6 using Sierra Wireless EM7421 and mbim
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