nrF52 to Exosite

[amjabb]

I am trying to set up a nrF52 -> Rpi v3 -> Exosite through CoAp as in the nrF5 iot sdk. The nrF52 to rpi works as I am able to ping the nrF52 through its global link address and the second LED lights up. Has anyone recently tried doing this lately, it seems that the exosite portion of the nordic example is out of date. Below are the messages I get on the nrF52 repeated several times.

0> [APPL]: DNS query failed.

0> [APPL]: CoAP server IPv6 address not available, sending DNS query...

If anybody knows of a solution to this or another cloud interface that is feasible, I would be grateful.

[Jørgen Holmefjord]

Yes, this means you don't have IPv6 connection. There is a couple of solutions to make the devices connect to internet:

1. Setup IPv6 tunnelling. This will allow two-way communication with the devices from IPv6 internet. You can find a blog post providing some details on one alternative provider here.
2. NAT64: This solution run on the RPi and will translate the IPv6 packets from the IoT device into IPv4 packets. This allows your IPv6 enabled IoT devices to talk to IPv4 internet, but not to IPv6 internet. It is also not trivial to connect to the IoT devices from IPv4 internet, as this translation is more complex.

I would suggest going for the IPv6 tunnel solution until you get native IPv6 connection. This will make the transition simpler when you get access to IPv6 network.