IoT UDP client can not communicate with server by using global IPv6

[Rick Zhong]

Hi All,

I am using the nrf_udp_client example project in IoT SDK as the code base for testing the UDP communication.

For network topology, the nrf51-DK plays the role of UDP client, and the Pi as a router, which connects directly to the PC through ethernet devzone.nordicsemi.com/.../

I followed all the upon thread steps to configure the radvd.conf and ipv6 prefix.

It's work, I can ping the nrf51-DK both from PC and raspberry Pi by using the global address.

But the PC can not receive any packet from nrf51-DK. There's no respond when I executed the "Python Server Example" (I have updated the SERVER_IPV6_ADDRESS to the global ipv6 address of the PC)

Is there any possible way to narrow down the issue? : )

[Petter Myhre]

Are you able to ping the IPv6 address of the PC? Have you tried to sniff the different interfaces on the RPi? I'm using tshark. Try doing a "tshark -I bt0" and see if the IPv6 packet is sent with the correct addresses.