Google's "unusual traffic" notification

[Philipp Kern]

On 2013-07-24 10:05, gall at switch.ch wrote:
> 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 presume it's per IP block, so it's not at all surprising that it 
"happens only for IPv6". So are you sure that there's no automated 
traffic happening? (Netflow should/might tell you that.)

Kind regards
Philipp Kern