Hurricane Electric Tunnelbroker staff?

Hi folks, I am seeing an IPv6-connected host on my network (which is on a HE.net tunnel) apparently being portscanned by an HE server at 2001:470:0:64::2 for about the last hour or so. It is trying to hit several different ports four times each before moving on and eventually repeating itself. If anyone from HE can shed some light on what's going on here it would be greatly appreciated, I can provide the IP of the host in question off-list if needed. Thanks, -- Ben