Cisco VG204 Software Configuration Guide - Page 11

Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics Understanding Cisco IOS Software Basics Table 1-1 Common Command Modes Command Mode User EXEC Access Method Log in. VG Prompt Displayed VG> Privileged EXEC From user EXEC mode, VG# enter the enable command. Global configuration Interface configuration From the privileged EXEC mode, enter the configure terminal command. VG(config)# From the global configuration mode, enter the interface type number command, such as interface fast ethernet 0/0. VG(config-if)# Exit Method Use the logout command. To exit to user EXEC mode, use the disable, exit, or logout command. To exit to privileged EXEC mode, use the exit or end command, or press Ctrl-Z. To exit to global configuration mode, use the exit command. To exit directly to privileged EXEC mode, press Ctrl-Z. Timesaver Each command mode restricts you to a subset of commands. If you are having trouble entering a command, check the prompt, and enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using the wrong syntax. In the following example, notice how the prompt changes after each command to indicate a new command mode: VG> enable Password: VG# configure terminal VG(config)# interface serial 0/0 VG(config-if)# line 0 VG(config)# exit VG# %SYS-5-CONFIG_I: Configured from console by console The last message is normal and does not indicate an error. Press Return to get the VG# prompt. Note You can press Ctrl-Z in any mode to immediately return to enable mode (VG#), instead of entering exit, which returns you to the previous mode. Undoing a Command or Feature If you want to undo a command you entered or disable a feature, enter the keyword no before most commands; for example, no ip routing. OL-16191-01 Cisco VG202 and Cisco VG204 Voice Gateways Software Configuration Guide 1-5