I've got the BQM running OK on IPv6. Excuse if some of the terminology is incorrect; I am an enthusiastic amateur rather than knowing what I am talking about.
Using Windows 10 I had to open a command window then run ipconfig /all. The output included Default Gateway addresses for IPv4 and IPv6. The IPv4 address showed as 192.168.xxx.xxx, the LAN address of the router. I had to use What's My IP to get the WAN IPv4 address for the router to run an IPv4 BQM.
The IPv6 address from ipconfig had 6 blocks and ended with %21. Taking out the %21 and using the rest of the IPv6 address in the BQM brought up a live graph.
Edit: Talking nonsense about the IPv6 address. The default gateway is the IPv6 equivalent of 192.168,xxx.xxx so is not a sensible address for BQM. However, TBB What is my IP and Tracreoute are both returning IPv6 addresses for me.
Edited by GonePostal (Wed 19-May-21 00:14:37)