Re: [RRG] Six/One Router Design Clarifications

[Brian E Carpenter <brian.e.carpenter@gmail.com>]

Chrsitian

On 2008-07-13 01:42, Christian Vogt wrote:
...
> For communications between upgraded and legacy edge networks, address
> rewriting happens unilaterally on the border of the upgraded edge
> network.  To avoid address inconsistencies between IP header and
> payload also in this case, Six/One Router relies on application
> functionality for network address translator traversal.  Applications
> that may be affected by such address inconsistencies depend on this
> functionality already today, due to the existing deployment of network
> address translators.  It is hence safe to assume that those
> applications, which use addresses in packet payloads, also support
> network address translator traversal.

I don't find this OK in an IPv6 environment. We've worked very hard for
years to make sure that IPv6 deployment doesn't require NAT, and it
is not a correct assumption that applications can support NAT kludges
for IPv6 just because they must do so for IPv4 (including IPv6-IPv4
packet level translation).

    Brian

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