Now, I want to send a multicast packet to Thread network from external network. I build the environment through " Running Border Router Application Scenarios" of " Kinetis Thread Stack Demo Applications User's Guide". The border router and router eligible device are both FRDM-KW24D512. The test steps is like this:
1.Add two multicast addresses to each interface on border router:
mcastgroup add ff03::1 0
mcastgroup add ff03::3ead 1
2.Add a multicast address to router eligible device
mcastgroup add ff03::3ead 0
3.Send two multicast ping request from PC
Border router can forward the ping request using ff03::3ead to the router eligible device, but ping request using ff03::1 is scarely forwarded by broder router during test. I don't know why only ff03::3ead is working well. If I want to send a multicast request with ff03::1 or other self-defined addresses, how to config the border router to forward the multicast packets to the Thread network?