Dear all,
I have a problem regarding to NAT-PT and ALG.
In the RFC2766(NAT-PT spec), nat-pt box cooperates with ALG to deal with
some application carrying IP addresses in payload. But for the operation of
nat-box box, how can the box differentiate which kind of traffic needs to be
processed by ALG and others needn't? Or the nat-pt box just send all traffic
to ALG module and leave the differentiation problem to ALG?
I don't find the clarification in the spec. So if answer is the latter, does
it means a big waste of device resource? After all, usually only the
signaling traffic needs to be processed by ALG.
So any kind of help is appreciated.
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Best regards,
Zhang haofeng