[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-16 Thread pigs-on-the-swim
apport information

** Tags added: apport-collected jammy third-party-packages

** Description changed:

  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.
  IPv6 shall work properly like in Linux-Mint 20.3 on this machine, this setup.
  All 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 + works with Linux Mint);
  
  "package" not understood, sorry. ModemManager probably?
  
  ASSUMPTIONs:
  - Missing IPv6 is a wrong config / bug in software / communication issue.
  - IPv6 communication can be enabled by adjustment rather than by code changes 
in cdc_mbim or redesign of SierraW. EM7421 device.
  - Some enhancement / fix can enable IPv6 communication.
  
  REMARK:
  Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic).
  It uses driver=cdc_mbim as well. It shows other issues like missing provision 
of additional DNS server data, EUI64 state and the like.
  
  THE ISSUE
  and details:
  
    Actually no IPv6 available at all (IPv6 is expected to work / no IPv6
  is a big issue for our work):
  
  3: wwan0:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@:00:14.0
   version: 20
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi xhci bus_master cap_list
   configuration: 

[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-16 Thread pigs-on-the-swim
** Description changed:

  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.
  IPv6 shall work properly like in Linux-Mint 20.3 on this machine, this setup.
  All 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. ModemManager probably?
+ - SIM is working properly,
+ - EM7421 latest firmware applied,
+ - EM7421 capable doing IPv6 with this setup (according to spec +  test with 
Win10 + works with Linux Mint);
  
- ASSUMPTION:
- Missing IPv6 is a wrong config / bug in software.
- IPv6 communication can be enabled.
- Some enhancement / fix can enable IPv6 communication.
+ "package" not understood, sorry. ModemManager probably?
+ 
+ ASSUMPTIONs:
+ - Missing IPv6 is a wrong config / bug in software / communication issue.
+ - IPv6 communication can be enabled.
+ - Some enhancement / fix can enable IPv6 communication.
  
  REMARK:
  Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic).
- It uses driver=cdc_mbim as well
+ It uses driver=cdc_mbim as well. It shows other issues like missing provision 
of additional DNS server data, EUI64 state and the like. 
  
  details:
  
  Actually no IPv6 available at all (IPv6 is expected to work):
  
  3: wwan0:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@:00:14.0
   

[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-16 Thread pigs-on-the-swim
** Description changed:

  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. 
- IPv6 shall work properly like in Linux-Mint 20.3 on this machine, this setup. 
+ IPv6 shall work properly like the EM7455 with same card in very similar 
machine, Ubuntu.
+ IPv6 shall work properly like in Linux-Mint 20.3 on this machine, this setup.
  All 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. ModemManager probably?
  
  ASSUMPTION:
  Missing IPv6 is a wrong config / bug in software.
  IPv6 communication can be enabled.
  Some enhancement / fix can enable IPv6 communication.
  
  REMARK:
  Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic).
  It uses driver=cdc_mbim as well
  
  details:
  
  Actually no IPv6 available at all (IPv6 is expected to work):
  
  3: wwan0:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@: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:5c42-5c42
     *-usbhost:0
  product: xHCI Host Controller
  vendor: Linux 5.15.0-25-generic xhci-hcd
  

[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-16 Thread pigs-on-the-swim
** Description changed:

  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
+ IPv6 shall work properly like the EM7455 with same card in very similar 
machine, Ubuntu. 
+ IPv6 shall work properly like in Linux-Mint 20.3 on this machine, this setup. 
+ All 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.
+ "package" unknown, sorry. ModemManager probably?
  
  ASSUMPTION:
  Missing IPv6 is a wrong config / bug in software.
  IPv6 communication can be enabled.
  Some enhancement / fix can enable IPv6 communication.
  
- REMARK: 
- Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic). 
+ REMARK:
+ Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic).
  It uses driver=cdc_mbim as well
  
  details:
  
  Actually no IPv6 available at all (IPv6 is expected to work):
  
  3: wwan0:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@: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:5c42-5c42
     *-usbhost:0
  

[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-16 Thread pigs-on-the-swim
** Description changed:

  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.
+ 
+ REMARK: 
+ Linux-Mint 20.3 una is capable of running the 'EM7421' in proper IPv6 "mode" 
(kernel 5.4.0-107-generic). 
+ It uses driver=cdc_mbim as well
  
  details:
  
  Actually no IPv6 available at all (IPv6 is expected to work):
  
  3: wwan0:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@: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:5c42-5c42
     *-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
     

[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-15 Thread Ubuntu Foundations Team Bug Bot
Thank you for taking the time to report this bug and helping to make
Ubuntu better.  It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general.  It is important that bug reports be filed about source
packages so that people interested in the package can find the bugs
about it.  You can find some hints about determining what package your
bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage.
You might also ask for help in the #ubuntu-bugs irc channel on
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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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[Bug 1969241] Re: Network issue no IPv6 using Sierra Wireless EM7421 and mbim

2022-04-15 Thread pigs-on-the-swim
** Description changed:

  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:  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: '8949021788157884' 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: '15000 bps' Downlink 
speed: '3 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:  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:  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@: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:5c42-5c42
     *-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: