Hi,

Just a minor point:

On Feb 25, 2009, at 5:16 PM, Christian Vogt wrote:
All address indirection solutions that are application-transparent do
map both source and destination addresses at both ends. I.e., you have
four mappings per packets:  The respective local addresses (source
address at the sending side; destination address at the destination
side) are mapped to achieve provider independence.  The respective
remote addresses are mapped to achieve application transparency.

Yes, you need a mapping on both sides, but no, you don't need to do all 4 per packet. You can leave the source identifier unmapped. You map the destination identifier to destination locator at the source edge and unmap the destination locator back into the destination identifer at the destination edge. You only need to map the source when you need to send something back (yes, if you have multiple edge devices at the source, it can make it a bit more difficult to find the one the packet came out of if you need to).

As I said, a minor point.

Regards,
-drc

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