Hi hwh,
Continuously? So that directions seems fine then.
Yep.
What does "not possible" mean? There's no reply?
No reply, yes.
So it's just the gateway that can't reach the "router"?
Correct.
Public-IPv6 is announced from a gateway via radvd into the mesh.
So even in that direction, NDP is fine. Seems only ICMPv6 echo requests are somewhat different then?
ip -6 neigh show says "FAILED".
Unfortunately we are out of ideas where we can search for the reason.
Look what's actually on the wire on both ends? Tcpdump and batctl tcpdump?
On the gateway, there are neighbor solicitations from the "router" and advertisements from the gateway.
At the moment, it's not possible to access the "router" to take a look what's going wrong there.
Regards bjo