Brian E Carpenter allegedly wrote on 11/17/2009 7:52 AM: >> We need the a box that translates local IPv6 addresses into global IPv6 >> addresses using a stateless NAT using a one-to-one reversible mapping >> algorithm for single-homed edge networks. That is precisely what NAT66 >> as described in the draft does according to our understanding. > > Clarification: when I say 'reversible', I mean that the translation > is reversible before the packet is delivered to the transport layer at > the remote end (as in 8+8/ILNP or SHIM6). > > Obviously, any NAT has to perform its local mapping in both directions, > but tha's not what I meant. I am concerned about requiring the remote site to be able to reverse the sender's mappings. For that to be the case, everyone must be able to run the same algorithm for translation, and changing it will be very very difficult, at least as difficult as changing IP.
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