This indicates whether to operate in stateful or stateless mode.
This option enables detection and alerting on encrypted Telnet and FTP command channels.
Note:
When inspection_type is in stateless mode, checks for encrypted traffic will occur on every packet, whereas in stateful mode, a particular session will be noted as encrypted and not inspected any further.
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Instructs the preprocessor to continue to check an encrypted session for a subsequent command to cease encryption.