In the case of apps that can switch or scan for free
ports I guess your
only solution is to look for the apps signature within
the packets. I
assume this can be done with some elaborate
software/hardware with
sufficient capacity and intelligence... :-)
James here....
Bandwidth shaping software/hardware exists, the .EDU's
found it was the only way to control Napster.
Very expensive. With this you can deny, not by
port/IP,
but by application type, ie "napster". You can also
control who (applications wise) gets the bandwidth and
how much. Some .EDU's allowed a little bandwidth for
Napster.
james
End trans
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