(ASA's configuration manual, I use this for my work, it's pretty good, you can take a look. would be helpful 1. Mode introduction "gt;" User mode firewallgt; Privilege from user mode to privilege password:password:password:password:password:password:password:password:“#”privileged mode configtfirewall#configt Enter the overall configuration from the privileged mode Enter the overall configuration from the privileged mode "(configconfigconfigconfig)#" Overall configuration mode)