A new Request for Comments is now available in online RFC libraries. RFC 1667: Title: Modeling and Simulation Requirements for IPng Author: S. Symington, D. Wood & M. Pullen Mailbox: susan@gateway.mitre.org, wood@mitre.org mpullen@cs.gmu.edu Pages: 7 Characters: 17,291 Updates/Obsoletes: none This document was submitted to the IETF IPng area in response to RFC 1550. Publication of this document does not imply acceptance by the IPng area of any ideas expressed within. Comments should be submitted to the big-internet@munnari.oz.au mailing list. The Defense Modeling and Simulation community is a major user of packet networks and as such has a stake in the definition of IPng. This white paper summarizes the Distributed Interactive Simulation environment that is under development, with regard to its real-time nature, scope and magnitude of networking requirements. The requirements for real-time response, multicasting, and resource reservation are set forth, based on our best current understanding of the future of Defense Modeling and Simulation. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@CNRI.RESTON.VA.US. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-REQUEST@NIC.DDN.MIL. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@ISI.EDU with the message body help: ways_to_get_rfcs. For example: To: rfc-info@ISI.EDU Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to admin@DS.INTERNIC.NET. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@ISI.EDU. Please consult RFC 1543, Instructions to RFC Authors, for further information. Joyce K. Reynolds USC/Information Sciences Institute