Steven Bellovin wrote: > The core issue was indeed that IPsec was mandated for v6. We > were *very* overoptimistic about how long it would take before > roll-out started in earnest. In fact, we underestimated how > long it would take to get good specs for all the important > pieces. We also underestimated how long IPsec would take, > though that was partially (but only partially) because IPsec > version 1 (RFCs 1825-1829) had to be thrown away. Quite simply, it is merely that IPsec had totally failed long before IPv6 totally failed. FYI, total failure of IPsec is not the only reason of total failure of IPv6. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf