Hi, I’m trying to get basic ping working between the two devices and from each of them it says host unreachable. My setup includes 2 raspberry pi 3b+ model and each of them attached to 2 Openlabs 802.15.4 module. I ran the following commands on each of them seperately: ip link set wpan0 down iwpan phy0 set channel 0 15 iwpan dev wpan0 set pan_id 0x1111 iwpan dev wpan0 set short_addr 0x0001 ip link set wpan0 up wpan-ping -d 0x0002 The only difference between the two pi was that I changed the short_addr for the other pi to 0x0002. The ping command used was: wpan-ping -a 0x0001 -s 5 -c 5 I understand you must tbe very busy, but I would really appreciate if you can support with some answers. There is very little thorough documentation on the web elsehwere, and that is why I have to turn to thtis mailing list for answes. Thanks, Aditya Nath