https://devzone.nordicsemi.com/f/nordic-q-a/10471/can-i-send-coap-request-message-global-ipv6-addr[Dev Env] nRF51 DK IoT SDK 0.8 IoT SoftDevice ipv6 coap client example [Question] coap client send request message struct is coap_message_t coap_message_t struct can port number.(ex:p_request-&gt;port.port_number = COAP_PORT_NUM;) en-USTelligent Community 13Wed, 25 Nov 2015 09:56:55 GMThttps://devzone.nordicsemi.com/thread/38907?ContentTypeID=1Wed, 25 Nov 2015 09:56:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:477c236d-639a-4642-8bfa-9f74522b51a9Petter Myhre<p>If a global prefix is distributes correctly the CoAP client example should use this prefix to create a global address. No modifications should be required.</p> <p>This is done by the icmp module, see ra_input() in icmp6.c. This react on router advertisments.</p><div style="clear:both;"></div>