Hi,
Indeed each operation should come from the same port. Regitration uses a specified URL (/rd) and Observation relies on CoAP tokens to match requests and notifications.
Anyway, in wakaama the connections are handled by the application. The core (the LWM2M stack) identifies endpoints (clients or servers) only by the session handle
(a void*) past to the lwm2m_handle_packet() or returned by the connect_server() callback. At not point the core inspects the actual address or UDP port of an endpoint.
So your issue can be solved in your client application if you past the same session handle for packets coming from either ports.
Regards,
David Navarro
From: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx]
On Behalf Of Subhash Nair p
Sent: Thursday, 17 December, 2015 19:26
To: Wakaama developer discussions <wakaama-dev@xxxxxxxxxxx>
Subject: Re: [wakaama-dev] Should observation be forced to reply to server ip address and server port?
I think the same port should be used.
Thanks
Subhsh
HP
On Dec 17, 2015 4:36 PM, "Ezequiel Santamaría Navarro" <zesn@xxxxxxx> wrote:
I'm about to integrate Wakaama client with IoTAgent from Telefonica I+D, which is hosted here:
https://github.com/telefonicaid/lightweightm2m-iotagent
But each observation requests from the IoTAgent uses a different port than the registration one.
By default a Wakaama client can connect to an IoTAgent using 60001, but observation requests doesn't come from port 60001.
I can't find at CoAP RFC7641 that constraint.
Which solution is the correct one? Should Wakaama reply to different ports? Should IoTAgent send request from the same as registration port?
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