>>> Except there really is no vendor lock anymore. It is >>> possible to automate the entire renumbering process. If >>> there are spots where it is not automated then they should >>> be found and fixed. >>> >> Oh man, that's rich. Do you actually believe that? >> > > If you design the network for IPv6 and not just copy the > IPv4 model. If you use the technology that has been developed > over the last 20 years, rather than disabling it, yes it is > possible. > That helps, but understanding of IPv6 and mindshare is even harder than forklift upgrades. And you have to educate everyone who might need to configure an application, not just network admins. And if you start looking for technology that would let you automate renumbering your entire network, you might find that the technology that exists is incomplete and unproven. I have yet to see a reliable, standard way to transmit address-based access-control information to applications, for instance. (don't tell them to use DNS, because besides being too unreliable to use for this, I am not aware of a DNS record that can transmit a list of IP address prefix/netmask pairs to applications, or of a standard API that would allow applications to find such information. oh yes, and practical use of DNS security still seems to elude us. and yeah, we shouldn't be using IP addresses for access control - but the general purpose technology to replace that doesn't seem to exist yet, so for the time being people are making do with what they have.) _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf