Basic Lab Primer

Đây là tài liệu căn bản cho việc học mạng máy tính | NETSIM FOR CCNA LAB MANUAI Lab Primer Lab Primer Lesson 1 Introduction to the Cisco Router Command-Line Interface Modes User Mode vs. Privileged Mode User mode is indicated by the prompt next to the router name. In user mode you can look at some of the router s settings. In privileged mode indicated by the prompt you can use the different show commands to display all of the router s settings. Router Router enable Router The Enable and Enable Secret Passwords You can set an enable password to control access to privileged mode. This is a very important password because when it is configured only those who know the password can make configuration changes in privileged mode. To set the enable password you must first enter configuration mode by using the configure terminal command at the privileged mode prompt. Router Router enable Router config term Router config enable password boson You can securely encrypt an enable password by using the enable secret command. Router config enable secret cisco The enable secret command defines the enable secret password used to protect access to privileged commands. The password is case-sensitive. A password set with the enable password command is stored as clear text whereas a password set with the enable secret command is encrypted. For security purposes configuring the router with an enable secret password is preferred. The enable secret password always takes precedence if both the enable secret password and the enable password are set. Configuration Mode From privileged mode you can enter configuration mode by using the configure terminal command. To exit configuration mode type the end command or press the CTRL Z key combination. Router config t Router config end Router Boson NetSim for CCNA Lab Manual 55 NETSIM FOR CCNA LAB MANUAL I Lab Primer Accessing Help To view all commands available from a mode type you do not have to press the ENTER key after typing the question mark. This will display a list of all available commands .