Michel Py wrote:
Look what you have done: not only we have more NATv4 than ever, but now
we also have NAT46, NAT64, NAT464...whatever and all of these with heavy
ALG layers to make it more palatable.
FYI, with end to end NATv4, all the applications, including PORT
command of FTP, just work without any ALG layers at all.
End to end NAT does not even have TLG layers of transport
checksum recalculations, and port translations.
For the end to end transparent NAT, NAT boxes can do nothing
other than the simplest address translation and rest of the
job must be done by end systems.
Masataka Ohta
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