CURRENT_MEETING_REPORT_ Reported by Dave Crocker/TBO Minutes of the IP Address Encapsulation BOF (IPAE) The IP Address Encapsulation BOF was a 3-hour session on Thursday morning, July 9th. Approximately 100 people attended. Bob Hinden gave a summary presentation of the goals and approach for solving the IP address-space limitation problem by use of an encapsulation technique which adds fields for new, globally unique addresses in a mini-layer above IP but below transport. A technical proposal was previously submitted as an Internet Draft (draft-crocker-ip-encaps-00.txt) and copies were provided. The handouts also included an initial assessment of implementation issues for BSD Unix, by Craig Partridge. A key point in the questioning was the absence of a detailed proposal for the specific addressing scheme to be used. The current IPAE proposal constrains the last 4 octets of the larger, global addresses to be old-style IP addresses, but no other constraints or details were provided. While this was intentional, it was clear that the audience desired to have a concrete proposal. A separate effort to develop an addressing proposal has since begun as a sub-effort of the IPAE team. The IPAE approach has as its main operational goal to limit impact on the installed base. It does this by defining the Internet to comprise a set of addressing ``commonwealths'' each with its own 32-bit address space. Within a commonwealth, classic IP always will be used. So, routers within the commonwealth and hosts which need to communicate only within that commonwealth will be able to conduct their business using old-style IP and require no change. It was observed that this can turn segments of the Internet into isolated ``islands''. However, such islands are already part of the operational Internet, since some organizations operate that way for security purposes. Further, only hosts need to upgrade. It is intended that interior routers will not need to. The BOF was intended to test the waters for forming a working group, as well as report on work-to-date. It was generally agreed that the working group should be formed. It intends to develop a complete specification for the core changes, a complete specification for an addressing scheme, and a specification of the procedures and mechanisms that will be needed to permit transition and coexistence for IP and IPAE. Attendees Nagaraj Arunkumar nak@3com.com William Babson bill@penril.com 1 John Ballard jballard@microsoft.com Lou Berger lberger@penril.com Pravin Bhagwat w2pravin@watson.ibm.com David Borman dab@cray.com Robert Braden braden@isi.edu David Bridgham dab@epilogue.com Scott Brim swb@cornell.edu Geetha Brown geetha@decvax.dec.com Jeffrey Burgan jeff@nsipo.nasa.gov Ross Callon callon@bigfut.enet.dec.com Greg Celmainis gregc@newbridge.com Vinton Cerf vcerf@nri.reston.va.us John Chang jrc@uswest.com A. Lyman Chapin lyman@bbn.com Chris Chiotasso chris@artel.com Richard Colella colella@osi.ncsl.nist.gov Michael Conn 004387451@mcimail.com David Crocker dcrocker@mordor.stanford.edu Richard desJardins desjardi@boa.gsfc.nasa.gov Kurt Dobbins dobbins@ctron.com Irina Dobrina irina@ftp.com Daniel Duchamp duchamp@liberty.cs.columbia.edu Pierre Dupont dupont@mdd.comm.mot.com Roger Fajman raf@cu.nih.gov Dino Farinacci dino@cisco.com Stefan Fassbender stf@easi.net Peter Ford peter@lanl.gov Karen Frisa karen.frisa@andrew.cmu.edu Vince Fuller vaf@stanford.edu Maria Gallagher maria@nsipo.nasa.gov Atul Garg agarg@synoptics.com Robert Gilligan Bob.Gilligan@eng.sun.com Terry Gray gray@cac.washington.edu William Haggerty haggerty@ctron.com James Halpin halpin@turkey.sw.stratus.com Dimitry Haskin dhaskin@bbn.com Robert Hinden hinden@eng.sun.com Russ Hobby rdhobby@ucdavis.edu Tim Howes Tim.Howes@umich.edu. Kathleen Huber khuber@bbn.com Steven Hubert hubert@cac.washington.edu John Ioannidis ji@cs.columbia.edu Ronald Jacoby rj@sgi.com Dwight Jamieson djamies@bnr.ca Dan Jordt danj@nwnet.net Tom Kessler kessler@eng.sun.com Kenneth Key key@cs.utk.edu Stev Knowles stev@ftp.com John Krawczyk jkrawczy@wellfleet.com Alan Kullberg akullber@bbn.com Sylvain Langlois Sylvain.Langlois@der.edf.fr Anthony Lauck lauck@tl.enet.dec.com Fong-Ching Liaw fong.liaw@eng.sun.com Tony Li tli@cisco.com 2 Carl Malamud carl@malamud.com Ed Menze menze@cs.arizona.edu Michael Millikin mmillikin@interop.com Lynn Monsanto monsanto@sun.com Dennis Morris morrisd@imo-uvax.disa.mil John Moy jmoy@proteon.com John Murray murray@premenos.sf.ca.us Erik Nordmark nordmark@eng.sun.com Charles Perkins perk@watson.ibm.com David Piscitello dave@sabre.bellcore.com Bala Rajagopalan braja@qsun.att.com Robert Reschly reschly@brl.mil April Richstein abm@tycho.ncsc.mil Simon Rosenthal simon@bos.locus.com Anthony Rutkowski amr@sprint.com Henry Sanders henrysa@microsoft.com John Sax jsax@bbn.com Jeremy Siegel jzs@nsd.3com.com Sam Sjogren sjogren@tgv.com Mark Smith mcs@umich.edu Frank Solensky solensky@clearpoint.com Michael St. Johns stjohns@umd5.umd.edu Roxanne Streeter streeter@nsipo.arc.nasa.gov Fumio Teraoka tera@csl.sony.co.jp Claudio Topolcic topolcic@nri.reston.va.us Kannan Varadhan kannan@oar.net Gregory Vaudreuil gvaudre@nri.reston.va.us Walter Wimer walter.wimer@andrew.cmu.edu Jane Wojcik jwojcik@bbn.com Richard Woundy rwoundy@rhqvm21.vnet.ibm.com 3