..  or how RIPE Atlas measurement data just got a little bit more complex. Some people say IPv6 is "96 more bits, no magic". And while this is true for most network operators, if you're a RIPE Atlas system programmer, you can run into interesting situations. In this article, we described how link-local addresses in IPv6, and specifically the '%eth0'-part of link-local addresses, can have an impact on RIPE Atlas measurements.