Netflix VPN detection - actual engineer needed

[aledm at qix.co.uk (Aled Morris)]

Maybe HE's IPv6 tunnel packets could be flagged with a destination option
(extension header field) that records the end-user's IPv4 tunnel endpoint
so geolocation could be done in the "old fashioned" way on that address.

Similar to the way that edns-client-subnet records the end user's address
for geolocation purposes.

I have to say though, how many Netflix customers are using HE IPv6 tunnels,
really?  zero percent (to two decimal places)?

Aled