OpenThread DNS resolve not working

[rodruizronald]

Hi,

I am trying to run the DNS example provided in the Nordic Infocenter as part of the Thread Border Router setup, but it is not working. I am getting "Error 28: ResponseTimeout". My OpenThread network is connected to an IPv4 network, and I am able to ping from a Thread host to ipv4.google.com (64:ff9b:0:0:0:0:d83a:d5ee).

Here is the example that I am trying to run:

> dns resolve ipv4.google.com
> DNS response for ipv4.google.com - Error 25
> dns resolve ipv4.google.com fdaa:bb:1::1
> DNS response for ipv4.google.com - [64:ff9b:0:0:0:0:d83a:d5ee] TTL: 300
> ping 64:ff9b:0:0:0:0:d83a:d5ee
> 8 bytes from 64:ff9b:0:0:0:0:d83a:d5ee: icmp_seq=3 hlim=50 time=87ms

Here is what I get:

Is there any known issue with the DNS64 protocol? Do I have to do some extra installations?

I am using the nRF5 SDK for Thread and Zigbee v3.0.0 and the RaspPi_OT_Border_Router_Demo_v3.0.0-1.alpha.img

[Edvin]

Hello,

Yes. I tested and I have the same result as you. When I looked around, I found that there are some reports that the "dns resolve" command doesn't work in the 3.0.0 release of the SDK. It does work in the 2.0.0 release, together with the 2.0.0-1.alpha border router FW found here:

https://www.nordicsemi.com/Software-and-Tools/Software/nRF5-SDK-for-Thread-and-Zigbee/Download#infotabs

I am not sure where the issue is located. I haven't tested whether it is possible to use the latest SDK with old border router FW, but I think it isn't possible (but not 100% sure). This is reported internally, and hopefully it will be fixed in a future release.

Best regards,

Edvin

[rodruizronald]

Thank you Edvin, I will use the 2.0.0 release.