Apple has been working with the IETF, and router vendors to provide enhancements to the AppleTalk Phase 2 routing protocol. The proposed protocol to provide better routing in large wide-area network environmentsis called "AURP."
AURP stands for Apple Update-based Routing Protocol. AURP is the routing information propagation protocol used for full "plug and play" functionality of AppleTalk. This protocol was designed to provide a continuum of options between the static and dynamic cases. In its most dynamic mode, it is functionally equivalent to the current AppleTalk routing information protocol (RTMP and ZIP).
Information regarding this product can be found in Product Information on the Apple Computer, Inc web page.
http://product.info.apple.com/productinfo/datasheets/as/internetrouter.html