Hello, > On Friday, April 9, 2021 10:28 AM, Alexander Aring <alex.aring@xxxxxxxxx> wrote: > > please tell us all the steps which you are doing with mac802154_hwsim, the > good part of that I can type it here as exactly what you do and then I can tell > you why it's not working. I ran these commands to setup the simulated devices: ----- modprobe mac802154_hwsim iwpan dev wpan0 set pan_id 0xbeef iwpan dev wpan1 set pan_id 0xbeef iwpan dev wpan0 set short_addr 0x0001 iwpan dev wpan1 set short_addr 0x0002 ip link add link wpan0 name lowpan0 type lowpan ip link add link wpan1 name lowpan1 type lowpan ip link set wpan0 up ip link set wpan1 up ip link set lowpan0 up ip link set lowpan1 up ----- Running ifconfig yielded: ----- pi@raspberrypi:~ $ ifconfig lowpan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::bcef:ff:fe00:1 prefixlen 64 scopeid 0x20<link> inet6 fe80::8847:2953:b010:47c8 prefixlen 64 scopeid 0x20<link> unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 15 bytes 2222 (2.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 19 bytes 2558 (2.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lowpan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::308e:2e6b:58a7:1ae0 prefixlen 64 scopeid 0x20<link> inet6 fe80::bcef:ff:fe00:2 prefixlen 64 scopeid 0x20<link> unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 15 bytes 2222 (2.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 19 bytes 2558 (2.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 27 bytes 2086 (2.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 27 bytes 2383 (2.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan1: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 27 bytes 2086 (2.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 27 bytes 2383 (2.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ----- Then I ran "wpan-ping -d" ----- pi@raspberrypi:~/devicetree $ wpan-ping -d Server mode. Waiting for packets... ----- I then opened a 2nd window and ran "wpan-ping -a 0x0001 -c 5 -i wpan0 ----- pi@raspberrypi:~ $ wpan-ping -a 0x0001 -c 5 -i wpan0 PING 0x0001 (PAN ID 0xbeef) 5 data bytes Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout --- 0x0001 ping statistics --- 5 packets transmitted, 0 received, 100% packet loss rtt min/avg/max = 2147483.750/0.000/0.000 ms pi@raspberrypi:~ $ ifconfig lowpan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::bcef:ff:fe00:1 prefixlen 64 scopeid 0x20<link> inet6 fe80::8847:2953:b010:47c8 prefixlen 64 scopeid 0x20<link> unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 31 bytes 3997 (3.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 36 bytes 4405 (4.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lowpan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::308e:2e6b:58a7:1ae0 prefixlen 64 scopeid 0x20<link> inet6 fe80::bcef:ff:fe00:2 prefixlen 64 scopeid 0x20<link> unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 32 bytes 4069 (3.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 35 bytes 4333 (4.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 47 bytes 3460 (3.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 53 bytes 4112 (4.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan1: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 53 bytes 3529 (3.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 47 bytes 3977 (3.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ----- I tried it with wpan1 as well: ----- pi@raspberrypi:~ $ wpan-ping -a 0x0001 -c 5 -i wpan1 PING 0x0001 (PAN ID 0xbeef) 5 data bytes Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout Hit 500 ms packet timeout --- 0x0001 ping statistics --- 5 packets transmitted, 0 received, 100% packet loss rtt min/avg/max = 2147483.750/0.000/0.000 ms pi@raspberrypi:~ $ ifconfig lowpan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::bcef:ff:fe00:1 prefixlen 64 scopeid 0x20<link> inet6 fe80::8847:2953:b010:47c8 prefixlen 64 scopeid 0x20<link> unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 32 bytes 4069 (3.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 36 bytes 4405 (4.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lowpan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet6 fe80::308e:2e6b:58a7:1ae0 prefixlen 64 scopeid 0x20<link> inet6 fe80::bcef:ff:fe00:2 prefixlen 64 scopeid 0x20<link> unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC) RX packets 32 bytes 4069 (3.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 36 bytes 4405 (4.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 8A-47-29-53-B0-10-47-C8-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 48 bytes 3504 (3.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 58 bytes 4192 (4.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wpan1: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 123 unspec 32-8E-2E-6B-58-A7-1A-E0-00-00-00-00-00-00-00-00 txqueuelen 300 (UNSPEC) RX packets 58 bytes 3554 (3.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 48 bytes 4032 (3.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ----- I feel I am missing some crucial detail. Thanks, Mark