[Ovmsdev] ota questions

[Mark Webb-Johnson]

> I haven’t watched closely enough to see if the AP mode offers a separate logical interface as an AP target (where a separate dhcp daemon/server would need to be running/listening), as that very well may muck with the above logic considerably otherwise. 

It does.

I have some ideas on this, and will reply to Michael’s thread.

Regards, Mark.

> On 17 Mar 2018, at 8:50 PM, Shaun Jurrens <shamziman at gmail.com> wrote:
> 
> Hi,
> 
> I am just a passive observer still, unfortunately. I believe your net manager should be able to deal with these events and trigger the lease (renew) request. 
> 
> The logic would entail having a preferred interface, most likely the Wi-Fi interface, if present, because we can’t really determine which dhcp client will get its lease first (or last) in situations like at boot-up.
> 
> If both interfaces are up at boot, only the preferred interface runs the dhcp request for IP address, default gateway, DNS server info, etc. Otherwise, obviously, the non-preferred interface does this. 
> 
> If the preferred interface loses “up”(link) status (for some random transient period, we don’t want to flap back and forth too much), the second interface runs a dhcp lease request. 
> 
> If the preferred interface again has link up, a dhcp lease request is sent, which then “resets” the DNS server info after getting an IP and default gateway. 
> 
> This is a pretty rough algorithm and ignores other eventual flakiness on the ESP side for other edge cases, but it should solve a few of the basic multi-homed challenges. Basically, you really just want one OVMS “client” interface working at a time to keep it simple. 
> 
> I haven’t watched closely enough to see if the AP mode offers a separate logical interface as an AP target (where a separate dhcp daemon/server would need to be running/listening), as that very well may muck with the above logic considerably otherwise. 
> 
> Yada, yada,
> Shaun
> 
> 
>> On 17 Mar 2018, at 12:48, Michael Balzer <dexter at expeedo.de> wrote:
>> 
>> DNS DHCP
>> 
>>> Am 17.03.2018 um 12:44 schrieb Michael Balzer:
>>> Maybe renewing the DNS lease would also fix my new issue.
>> 
>> -- 
>> Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
>> Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
>> _______________________________________________
>> OvmsDev mailing list
>> OvmsDev at lists.teslaclub.hk
>> http://lists.teslaclub.hk/mailman/listinfo/ovmsdev
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.teslaclub.hk
> http://lists.teslaclub.hk/mailman/listinfo/ovmsdev