fred at cisco.com
Sun Sep 26 07:33:52 CEST 2010
On Sep 25, 2010, at 10:00 PM, David Conrad wrote:
> In my view, the decision by the IETF that identity and location are overloaded into a single value in IPv6 (just like in IPv4) pretty much guarantees renumbering will be hard. The fact that the initial recommendations on address allocation policy made by the IETF ignored the fact that renumbering is hard greatly reduced the desirability of IPv6 to larger scale end users.
I agree that identity and location should be separated, and I am in favor of solutions like ILNP that do so. That's actually not a renumbering question - I'll argue that renumbering remains a bear even with network prefix translation, because people will still take shortcuts of various kinds, as discussed in RFC 4192. Network Prefix Translation makes it easier to multihome, but doesn't address what happens when you change stop using a given ISP that gave you a certain prefix, or change the EID on a device (change its NIC card for example), and something else "knows" that the old prefix or EID is the right one. Location/Identity separation doesn't solve human stupidity/laziness.
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