Hi,
I built a Thread Network using two nRF52840-DKs with the OpenThread CLI sample written.
After making each thread active, we opened a UDP socket and sent a message to the multicast address (ff02::1).
At this time, no log indicating reception was displayed on the other nRF52840-DK.
I can confirm using Wireshark that the UDP message can be sent reliably.
Also, when sending the same message after inactivating Thread with "ot thread stop", a log showing receipt was displayed.
Is there a way to receive UDP messages with Thread active?
Below are the respective CLI logs.
<< commissioner size log >>
*** Booting Zephyr OS build v3.3.99-ncs1 *** uart:~$ ot thread stop Done uart:~$ ot dataset init new Done uart:~$ ot dataset channel 11 Done uart:~$ ot dataset panid 0x1234 Done uart:~$ ot dataset commit active Done uart:~$ ot ifconfig up Done uart:~$ ot thread start Done uart:~$ ot dataset Active Timestamp: 1 Channel: 11 Channel Mask: 0x07fff800 Ext PAN ID: de1372f2690746ac Mesh Local Prefix: fd87:e652:47f:59ee::/64 Network Key: 8e70238e21f467005ca0f012a2f544f2 Network Name: OpenThread-158d PAN ID: 0x1234 PSKc: b0164bbfe9e483a4c4a7d2b1b389db3d Security Policy: 672 onrc Done uart:~$ ot commissioner start Commissioner: petitioning Done Commissioner: active uart:~$ ot commissioner joiner add f4ce364117e9f1a4 N0RD1C Done Commissioner: Joiner start 237c8fef269a5885 Commissioner: Joiner connect 237c8fef269a5885 Commissioner: Joiner finalize 237c8fef269a5885 Commissioner: Joiner end 237c8fef269a5885 Commissioner: Joiner remove 237c8fef269a5885 uart:~$ ot udp open Done uart:~$ ot udp linksecurity disable Done uart:~$ ot udp send ff02::1 test1 Error 7: InvalidArgs uart:~$ ot udp send ff02::1 2378 test1 Done uart:~$ ot udp send ff02::1 2378 test2 Done uart:~$ ot udp send ff02::1 2378 test3 Done uart:~$ ot udp bind :: 2378 Done uart:~$ ot thread stop Done 5 bytes from fe80:0:0:0:e0e0:a6a0:5e93:1294 2378 test3 uart:~$ ot thread start Done uart:~$ ot ipaddr fd87:e652:47f:59ee:0:ff:fe00:7800 fd87:e652:47f:59ee:0:ff:fe00:fc35 fd87:e652:47f:59ee:df22:d48b:3815:3dfd fe80:0:0:0:4c7c:380a:7beb:2442 Done Commissioner: disabled uart:~$ uart:~$ ot thread stop Done 5 bytes from fe80:0:0:0:e0e0:a6a0:5e93:1294 2378 test4 uart:~$
<< joiner side log >>
*** Booting Zephyr OS build v3.3.99-ncs1 *** uart:~$ ot thread stop Done uart:~$ ot dataset init new Done uart:~$ ot dataset channel 11 Done uart:~$ ot dataset panid 0x1234 Done uart:~$ ot dataset commit active Done uart:~$ ot ifconfig up Done uart:~$ ot eui64 f4ce364117e9f1a4 Done uart:~$ ot joiner start N0RD1C Done Join success uart:~$ ot thread start Done uart:~$ ot udp open Done uart:~$ ot udp linksecurity disable Done uart:~$ ot udp bind :: 2378 Done uart:~$ ot thread stop Done 5 bytes from fe80:0:0:0:4c7c:380a:7beb:2442 49156 test2 5 bytes from fe80:0:0:0:4c7c:380a:7beb:2442 49156 test3 uart:~$ ot udp send ff02::1 2378 test1 Done uart:~$ ot udp send ff02::1 2378 test2 Done uart:~$ ot udp send ff02::1 2378 test3 Done uart:~$ ot thread start Done uart:~$ ot ipaddr fd87:e652:47f:59ee:0:ff:fe00:5400 fd87:e652:47f:59ee:ca07:9c8:34c3:dd44 fe80:0:0:0:e0e0:a6a0:5e93:1294 Done uart:~$ ot udp send ff02::1 2378 test3 Done uart:~$ ot udp send fe80:0:0:0:4c7c:380a:7beb:2442 2378 test4 Done uart:~$
Best regards,
Yuma
