Final answer:
The question pertains to configuring antivirus fail-open settings on a network device, which determine the network's behavior if the antivirus system fails. Options include 'Off,' 'One-shot,' and 'Pass' for controlling traffic flow when scanning is not possible.
Step-by-step explanation:
The command sequence provided is related to the configuration of antivirus settings on a network device. When configuring security on network devices, such as a firewall or Unified Threat Management (UTM) system, settings specify how the device should behave if the antivirus system fails. The av-failopen option determines what action should be taken when the antivirus engine is unable to scan a file. There are three modes:
- Off: No traffic is allowed if the antivirus engine fails.
- One-shot: If the antivirus system fails, current sessions are allowed to continue, but no new sessions will start.
- Pass: All traffic is allowed without scanning if the antivirus system fails.
These options are particularly important for maintaining network availability while ensuring security during moments when the antivirus system is not operational. The av-failopen-session allows enabling or disabling the fail-open feature for ongoing sessions.