For this section to be useful you needs to be done at break points. LAN /64, SITE /56 or /48 and ISP /??. Doing it on every bit boundary is just plain wrong. The intent was good. The specification was wrong. To make this useful you need a protocol to distribute those break points. This is a little like a automated sortlist built into modern resolvers. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews@xxxxxxx _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf