Quectel EC25A refusing to issue ipv4

Sun Sep 2 07:24:35 UTC 2018

Hi Christopher,

Have you tried after the network connection is up running

mmcli -m 0

Or whatever your modem’s ID is. For me it shows the IP addresses of the modem. After that I can just put the address on the network interface to start the communication, e.g.

ifconfig wwan_interface IP_address

Also I have been doing manual bearer configuration, where you can add besides the APN also the IP type. I think in mmcli --simple-connect such option is supported as well. Check the help to see allowed options.

I hope this helps you a bit.

Good luck,
Domi

2018. szept. 2. dátummal, 6:38 időpontban Christopher McKenzie <chris at waive.car> írta:

> Sorry if this has been covered and my search skills on the mailing list archive failed me.
> 
> I have a Quectel EC25AFAR05A04M4G (rev. 10000 according to mmcli) modem which gets an ipv4 address in windows as follows:
> 
> Mobile Broadband adapter Mobile Broadband Connection 2:
> 
>    Connection-specific DNS Suffix  . :
>    IPv6 Address. . . . . . . . . . . : 2607:fb90:4ae9:5152:2d4a:269:4c79:3aeb
>    IPv6 Address. . . . . . . . . . . : 2607:fb90:4ae9:5152:6581:8704:bcc7:e874
>    Temporary IPv6 Address. . . . . . : 2607:fb90:4ae9:5152:a1cc:1474:277:1844
>    IPv4 Address. . . . . . . . . . . : 26.126.253.115
>    Subnet Mask . . . . . . . . . . . : 255.255.255.248
>    Default Gateway . . . . . . . . . : 2607:fb90:4ae9:5152:91ab:8859:c3a4:acc8
> fe80::91ab:8859:c3a4:acc8%26
>                                        26.126.253.116
> 
> This tells me that my carrier and my device support both ipv4 and ipv6.
> 
> My current setup includes libmbim-glib-dev 1.16.0-1 from debian/testing and I'm using 1.4.0-690-gde362e9
> 
> mmcli says the IP supported is "ipv4, ipv6, ipv4v6".  I've tried the --wds-set-ip-family=4 option that was recently added like so:
> 
> # qmicli -d /dev/cdc-wdm0 --wds-set-ip-family=4 --client-no-release-cid -v
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] Opening device with flags 'auto'...
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] loaded driver of cdc-wdm port: qmi_wwan
> [01 Sep 2018, 21:10:03] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available
> [01 Sep 2018, 21:10:03] [Debug] QMI Device at '/dev/cdc-wdm0' ready
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] Assuming service 'wds' is supported...
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] Allocating new client ID...
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] sent message...
> <<<<<< RAW:
> <<<<<<   length = 16
> <<<<<<   data   = 01:0F:00:00:00:00:00:01:22:00:04:00:01:01:00:01
> 
> [01 Sep 2018, 21:10:03] [Debug] [/dev/cdc-wdm0] sent generic request (translated)...
> <<<<<< QMUX:
> <<<<<<   length  = 15
> <<<<<<   flags   = 0x00
> <<<<<<   service = "ctl"
> <<<<<<   client  = 0
> <<<<<< QMI:
> <<<<<<   flags       = "none"
> <<<<<<   transaction = 1
> <<<<<<   tlv_length  = 4
> <<<<<<   message     = "Allocate CID" (0x0022)
> <<<<<< TLV:
> <<<<<<   type       = "Service" (0x01)
> <<<<<<   length     = 1
> <<<<<<   value      = 01
> <<<<<<   translated = wds
> 
> [01 Sep 2018, 21:10:06] [Debug] [/dev/cdc-wdm0] received message...
> <<<<<< RAW:
> <<<<<<   length = 25
> <<<<<<   data   = 01:18:00:80:03:03:02:AA:0C:20:00:0C:00:02:04:00:00:00:00:00:01:02:00:C8:08
> 
> [01 Sep 2018, 21:10:06] [Debug] [/dev/cdc-wdm0] received generic response (translated)...
> <<<<<< QMUX:
> <<<<<<   length  = 24
> <<<<<<   flags   = 0x80
> <<<<<<   service = "nas"
> <<<<<<   client  = 3
> <<<<<< QMI:
> <<<<<<   flags       = "response"
> <<<<<<   transaction = 3242
> <<<<<<   tlv_length  = 12
> <<<<<<   message     = "Get Signal Strength" (0x0020)
> <<<<<< TLV:
> <<<<<<   type       = "Result" (0x02)
> <<<<<<   length     = 4
> <<<<<<   value      = 00:00:00:00
> <<<<<<   translated = SUCCESS
> <<<<<< TLV:
> <<<<<<   type       = "Signal Strength" (0x01)
> <<<<<<   length     = 2
> <<<<<<   value      = C8:08
> <<<<<<   translated = [ strength = '-56' radio_interface = 'lte' ]
> 
> [01 Sep 2018, 21:10:06] [Debug] [/dev/cdc-wdm0] No transaction matched in received message
> 
> error: couldn't create client for the 'wds' service: CID allocation failed in the CTL client: Transaction timed out
> 
> ----->8----
> 
> I've separately tried addressing this through /etc/qmi-network.conf by making the content as follows:
> 
> APN=network
> IP-TYPE=4
> 
> Then I tried to start the network (with and without the ip-type=4 line).  With the ip-type=4 line I get the following:
> 
> loading profile at /etc/qmi-network.conf...
> /usr/local/bin/qmi-network: 2: /etc/qmi-network.conf: ip-type=4: not found
>     APN: internet
>     APN user: unset
>     APN password: unset
>     qmi-proxy: no
> Checking data format with 'qmicli -d /dev/cdc-wdm0 --wda-get-data-format '...
> [01 Sep 2018, 21:24:01] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available
> Device link layer protocol retrieved: raw-ip
> Getting expected data format with 'qmicli -d /dev/cdc-wdm0 --get-expected-data-format'...
> [01 Sep 2018, 21:24:01] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available
> Expected link layer protocol retrieved: raw-ip
> Device and kernel link layer protocol match: raw-ip
> Starting network with 'qmicli -d /dev/cdc-wdm0 --wds-start-network=apn='internet'  --client-no-release-cid '...
> [01 Sep 2018, 21:24:01] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available
> Saving state at /tmp/qmi-network-state-cdc-wdm0... (CID: 24)
> Saving state at /tmp/qmi-network-state-cdc-wdm0... (PDH: 2267257648)
> Network started successfully
> 
> 
> Then I do something like
> 
> 
> dhclient -4 wwp0s29u1u1u4i4
> 
> 
> which returns immediately
> 
> Then I do an ip addr show and see I have, much to my dismay only an ipv6 address.
> 
> We have a few thousand of these quectels on order which are going to be in embedded devices so I guess I could have some massive ipv6to4 bridge running but I'd rather not and I'd much rather have an ipv6 AND ipv4 address like I can get on windows - I'd also be ok with only an ipv4 address. I'm probably not ok however, with exclusively an ipv6.
> 
> Any clues on how I can get this device to register an ipv4 address?  The carrier is T-Mobile btw, if that makes a difference.
> 
> Thanks!
> 
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