A customer reported to us that many of his users have been getting the "Our systems have detected unusual traffic from your computer network" message from Google since last week. Apparently, this is only happening for IPv6, which makes me suspect that there is some kind of glitch with Google's technique for detecting what they believe is automated traffic.
I filled in their form at <https://support.google.com/websearch/contact/ban>, but I'm not particualry optimistic that this will help. The customer is using a /48 from our allocation 2001:620::/32, but so far we didn't get any reports from other customers. Any help or insight into the problem would be appreciated. -- Alex SWITCH NOC AS559
