ccna v 3.0

ccna v 3.0.To restrict access to the Cisco device, configure the user EXEC password and the privileged EXEC password by using the line subconfiguration mode command password and the command enable secret or enable passwordo command service password-encryption, respectively, to encrypt the plaintext password in the IOS device. Encryption. The command banner motd displays the login banner before prompting the user for a username and password.To view the active configuration, use the command showninning-config. On IOS devices, the configuration must be manually saved to NVRAM ------------------------ with the command copy running-configstartup-config oThe switch interface is enabled by default, but to enable the router interface, you need to use the command no shutdown. for the router's DCE-type serial interface, you need to configure the clock frequency for it using the command clockrate. To view the status and configuration of the interface, use the command show interfaceso10.8 Two-Minute Sprint.Cisco Device Configuration Introduction . Out-of-band management is done through the console port or auxiliary port; in-band management is done through the interface. . To connect to the console port, you need an RJ-45 reversal cable and possibly an RJ.45.to.DB.9 terminal adapter. In the terminal emulation package, the following settings are required: speed (9600bit/s), data bits (8), stop bits (1), parity (none), flow control (none).. The interface has a name and port number, and possibly a slot number. On the 2960 switch, the slot number is 0, and the port number starts at 1. Router slot numbers start at 0; in each type or each slot, port numbers start at 0.. There are four CLI access modes: user EXEC mode (IOS>), privileged EXEC mode (IOS#), configuration mode (lOS(config)#), and ROMMON mode (>).. The command enable is used to switch from user EXEC mode to privileged EXEC mode; the command exit is used to exit the IOS device.IOS Basics. On the router, in any mode, you can use ? to display context-sensitive help, which lists the commands available in the current mode