We have written a tool, called scamper, to traceroute through a large address list in an efficient manner by conducting traceroutes in parallel - as the need dictates - to fill a packets-per-second rate. Scamper is quite similar to skitter, except that scamper can traceroute to IPv6 addresses as well as IPv4 addresses. The focus of the current research is in providing insight into the behaviour and growth patterns of the IPv6 Internet.