Wednesday, June 8, 2016

Netflix, IPv6 and "You seem to be using an unblocker or proxy."

Trying to watch a movie via Netflix, I get:

Whoops, something went wrong...
Streaming Error
You seem to be using an unblocker or proxy. Please turn off any of these services and try again. For more help, visit 

Error Code: M7111-1331-5059

The cause seems to be that I use an IPv6 tunnel (from Hurrican Electric). See .
Great ... :-(

I don't understand why Netflix doesn't use IPv4 to detect the real origin of the customer, and then offers the 'correct'/meant offering via IPv6.

Anyway. Workarounds:

Wednesday, June 1, 2016

IPv6 traffic is the majority of my Internet traffic

Interesting: IPv6 traffic is the majority of my Internet traffic at home: 54%. And IPv4 is the minority.

Calculation (thanks to the MRTG monitoring of my router):

  • IPv6 traffic has an average of 366.0 kb/s
  • Total IPv4+IPv6 traffic has an average of 676.4 kb/s

So divide those numbers IPv6 by total traffic: 366/676 = 54% IPv6 traffic.

The explanation is quite easy: the well-known high-traffic sites (youtube, google, facebook) are IPv6-enabled.

PS: If "an average 676.4 kb/s" sounds low: that's almost 7GB per day. Rule of thumb: 100 kbps average is 1GB per day.

MRTG overview of my traffic: Green is total traffic, Blue is IPv6. Note there are only two IPv4-spikes.

Youtube: IPv6-only: