qmicli and IPv4 / IPv6

[Bjørn Mork]

You need to create two qmi wds sessions on the same cdc-wdm device, using the same apn for both. I am not sure about this, but I think this apn must be preconfigured as ipv4v6 in the list of confured contexts. Which you probably already did since you can connect it as both ipv4 and ipv6.

The missing trick is probably using the same cdc-wdm device.

Note that the double session is merely a qmi mapping. The modem will use a single dual stack connection to the network. The double qmi sessions give you two wds client id handles which you can use to retrieve the ipv4 and ipv6 configuration.


Bjørn

On May 21, 2016 12:53:09 AM CEST, Andre Valentin <avalentin at marcant.net> wrote:
>Hi!
>
>I'm currently trying to setup ZyXEL LTE3303 with openwrt. The device
>has an integrated LTE modem,
>it's a 1435:d181 Wistron NeWeb. It offers 3 qmi devices and 3 wwan
>interfaces.
>
>I testet the original firmware and it enables a dualstack interface
>with both address types. Now I
>would like to enable the same in openwrt.
>
>If I just run:
>qmicli -v -p -d /dev/cdc-wdm1 
>--wds-start-network=apn=internet.t-mobile --client-cid=2
>--client-no-release-cid
>I will only get an IPv4 address.
>Status:
>qmicli -d /dev/cdc-wdm0 -p    --wds-get-current-settings
>[/dev/cdc-wdm0] Current settings retrieved:
>           IP Family: IPv4
>        IPv4 address: 10.80.81.211
>    IPv4 subnet mask: 255.255.255.248
>IPv4 gateway address: 10.80.81.212
>    IPv4 primary DNS: 10.74.210.210
>  IPv4 secondary DNS: 10.74.210.211
>                 MTU: 1500
>             Domains: none
>
>I do not get an IPv6 Address. If I patch qmicli like this:
>------------------------------------------------------------------------------------------------------
>--- libqmi-1.14.2/src/qmicli/qmicli-wds.c       2016-05-14
>13:19:20.000000000 +0200
>+++ libqmi-1.14.2.patched/src/qmicli/qmicli-wds.c       2016-05-19
>20:50:17.792832166 +0200
>@@ -434,6 +434,9 @@ start_network_input_create (const gchar
>         .password            = NULL,
>     };
>
>+
>+    QmiWdsIpFamily ip_family = 6;
>+
>     /* An empty string is totally valid (i.e. no TLVs) */
>     if (!str[0])
>         return NULL;
>@@ -501,6 +504,8 @@ start_network_input_create (const gchar
>     if (props.password && props.password[0])
>qmi_message_wds_start_network_input_set_password (input,
>props.password, NULL);
>
>+   
>qmi_message_wds_start_network_input_set_ip_family_preference(input,
>ip_family, NULL);
>+
>     /* Set autoconnect */
>     if (props.autoconnect_set)
>qmi_message_wds_start_network_input_set_enable_autoconnect (input,
>props.autoconnect, NULL);
>------------------------------------------------------------------------------------------------------
>I will receive an IPv6 address, but only that. No IPv4. Also setting
>ip_family to unspecified (8)
>only leads to a working IPv4 connection.
>
>I tried to create 2 simultaneous connections over cdc-wdm0 and
>cdc-wdm1, this works.
>But that cannot be the solution!?
>
>Also if I take a look at my android devices both address types or
>configured on a single interface.
>
>Do you have a hint how to solve this problems?
>
>Kind regards,
>
>André
>
>
>
>------------------------------------------------------------------------
>
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