[IoT SDK] Cloud CoAp DNS Query Failed

RE: [IoT SDK] Cloud CoAp DNS Query Failed

Eugene Yu — Fri, 14 Jul 2017 03:07:55 GMT

I have tested simply with "data_source" example and got the result as below

[APPL]: Periodic CoAP POST requests enabled.
[APPL]: CoAP server IPv6 address not available, sending DNS query...
[APPL]: DNS Response for hostname: coap.exosite.com, with 1 IPv6 addresses and status 0x00000000
[APPL]: [0] IPv6 Address: 2600:3c01:0000:0000:f03c:91ff:fe33:2b76
[APPL]: Sending CoAP POST request, with payload   19...

Have you tried pinging from Windows CMD Terminal? If you have correct routing setting, you can do IPv6 ping from other device as windows laptop or linux laptop which it belonging in network.

My assumption is that IPv6 routing is not working properly between HE and BT0 interface

RE: [IoT SDK] Cloud CoAp DNS Query Failed

amjabb — Thu, 13 Jul 2017 20:11:14 GMT

I am using the Cloud example, to connect to exosite. I am able to ping coap.exosite.com on the raspberry pi.

RE: [IoT SDK] Cloud CoAp DNS Query Failed

Eugene Yu — Thu, 13 Jul 2017 06:16:48 GMT

Hi Amajabb,

Which IoT SDK and example are you using? I assumed that your raspberry pi router can't route IPv6 address from your device to HE.

Did you succeed to ping to coap.exosite.com on your raspberry pi?

Thanks, Eugene