This shuts down the NAT interface that
was previously started with mnStartNAT.
mnStartNAT must be used before this command.
bool Block: If set to true the command will block until the operation has completed.
When blocking:
0 if no error occurred
-1 if an error occurred
When not blocking:
Any number; this is the action to be used with mnPollUPNP
-1 if an error occurred
DBP
C++
.Net