On Jan 3, 2008 9:23 PM, John L Lee <johnllee@mindspring.com> wrote:Distirbution For software that tracks v4, v6 and ASN look at www.internetassociatesllc.com It handles /64 EUI-64 and Random as well as /127, /128 assignments and any size block allocation from /0 - /126. John (ISDN) LeeIMHO, that's a standalone product better suited for the enterprise. Post merger Lucent Alcatel, Lucent QIP was renamed VitalQIP and it does support both v4 and v6. http://www.alcatel-lucent.com/wps/DocumentStreamerServlet?LMSG_CABINET=Docs_and_Resource_Ctr&LMSG_CONTENT_FILE=Brochures/VitalQIP__DNS_DHCP_and_IP_Management_Software_for_your_Enterprise_Brochure.pdf Not for the small (budget) minded. Best, Marty