Hi, On Fri, 9 Apr 2021 at 12:59, Mark Butsch <Mark.Butsch@xxxxxxxxxxxxxxxx> wrote: ... > > I feel I am missing some crucial detail. > I tried to reproduce it, I don't see any mistake and it does not work for me as well. However I am not an expert in af802154 socket (I never touched it so far) it's a very historical growing thing. Maybe Stefan can help here. However, I tested an IPv6 ping on my side and it worked. Just do ping6 "fe80....%lowpan0", whereas the address is lowpan1 of course. May I have at the weekend time to look at it and maybe we can finally start some next generation socket interface or better make this one less complicated/fixing bugs (also some netns awareness seems to be missing, as I figured out?). I also was looking at wireshark, it was showing some data arriving. - Alex