On 2016-10-19 23:49, Petr Štetiar wrote:
> Hi Felix,
>
> it seems like that this autoconnect feature is causing some regressions and a
> headaches to few people :-) I'm talking about this commit in particular:
>
> Author: Felix Fietkau <n...@nbd.name>
> Date: Thu Sep 22 20:07:45 2016 +0200
>
> uqmi: re-enable autoconnect which was dropped without explanation
>
> Fixes a regression in commit 8f24ee638275:
> "uqmi: Add proper IPv6 support"
>
> I'm using Quectel EC20 miniPCIe modem mainly in Slovakia and Czech Republic.
> Till now, without autoconnect enabled it was working fine in both networks,
> but
> now after this change has been pulled into my device I'm no more able to
> initiate the connection in Slovakia:
>
> netifd: wan (1681): Waiting for network registration
> netifd: wan (1681): Starting network internet
> netifd: wan (1681): Unable to connect IPv4
> netifd: wan (1681): Unable to connect
>
> To get it working again, I've to just remove autoconnect from start-network
> command:
>
> --- a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
> +++ b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
> @@ -112,8 +112,7 @@ proto_qmi_setup() {
> ${auth:+--auth-type $auth} \
> ${username:+--username $username} \
> ${password:+--password $password} \
> - --ip-family ipv4 \
> - --autoconnect`
> + --ip-family ipv4`
>
> To me it seems like this autoconnect option is being propagated throught the
> network and the network operator could refuse connection with this option. I
> don't have any other logical explanation.
>
> How to fix it for both use cases, with and without autoconnect feature?
> Introduce qmi_autoconnect config option?
I think we probably need to introduce such an option as a temporary
measure.
The problem with not using autoconnect is that once the link is gone for
a while, the link will be torn down and not re-established anymore. To
deal with that properly, we need some code to monitor the link and try
to re-establish the connection when it's gone.
- Felix
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