http://www.cisco.com/warp/public/759/ipj_3-1/ipj_3-1_routing.html Connecting IPv6 Routing Domains Over the IPv4 Internet by Brian E. Carpenter, IBM & iCAIR Keith Moore, University of Tennessee Bob Fink, Energy Sciences Network ------------------------------------------- Was this done "inside" the IETF ? Jim Fleming http://www.unir.com Mars 128n 128e http://www.unir.com/images/architech.gif http://www.unir.com/images/address.gif http://www.unir.com/images/headers.gif http://www.ntia.doc.gov/ntiahome/domainname/130dftmail/unir.txt http://msdn.microsoft.com/downloads/sdks/platform/tpipv6/start.asp http://www.ietf.org/mail-archive/ietf/Current/msg12213.html http://www.ietf.org/mail-archive/ietf/Current/msg12223.html