Hi, I have patched the linux kernel so that I can run native ipv6 over ax.25, the amateur radio link-layer protocol. Here you see the trace on port '23cm' from station pe1jpd (me) to pi1hvs (local node). I patched the trace program (listen) too, this is the output: 23cm: fm PE1JPD-3 to PI1HVS-2 ctl UI pid=8E(IPV6) len 104 IPV6: 2001:0838:0392:0002:0000:0000:0000:0001 -> 2001:0838:0392:0002:0000:0000:0000:0002 payload 64 hop 64 prot ICMPV6 ICMPV6: type Echo Request id 14188 seq 1280 0000 -F6@r`N.HI.KLMNOPQRSTUVWXYZ[\]^_ !"#$%&'()*+,-./01234567 23cm: fm PI1HVS-2 to PE1JPD-3 ctl UI pid=8E(IPV6) len 104 IPV6: 2001:0838:0392:0002:0000:0000:0000:0002 -> 2001:0838:0392:0002:0000:0000:0000:0001 payload 64 hop 64 prot ICMPV6 ICMPV6: type Echo Reply id 14188 seq 1280 0000 -F6@r`N.HI.KLMNOPQRSTUVWXYZ[\]^_ !"#$%&'()*+,-./01234567 One of the things that remains is address autoconfiguration on the specific SCC-devices, this doesn't work yet (anyone know why?), but after manual configuration of a link local and global address it works.. Before releasing the code let's test it properly :-) Bas