Configuration
Configuring the HP AdvanceStack Internet Router
Cisco IOS Software Basics
Almost every configuration command also has a “no” form. In general, use the “no” form to disable a feature or function. Use the command without the keyword “no” to reenable a disabled feature or to enable a feature that is disabled by default. For example, IP routing is enabled by default. To disable IP routing, enter the no ip routing command and enter ip routing to reenable it. The Cisco IOS software command reference publication provides the complete syntax for the configuration commands and describes what the no form of a command does. Note that you cannot override or modify a parameter of an existing command. It must first be deleted and then use “no” form.
Getting Context-Sensitive Help
In any command mode, you can get a list of available commands by entering a question mark (?).
Router> ?
To obtain a list of commands that begin with a particular character sequence, type in those characters followed immediately by the question mark (?). Do not include a space. This form of help is called word help, because it completes a word for you.
Router# co?
configure connect copy
To list keywords or arguments, enter a question mark in place of a keyword or argument. Include a space before the question mark. This form of help is called command syntax help because it reminds you which keywords or arguments are applicable based on the command, keywords, and arguments you have already entered.
Router# configure ?
memory | Configure from NV memory |
network | Configure from a TFTP network host |
terminal | Configure from the terminal |
<cr> |
|
You can also abbreviate commands and keywords by entering just enough characters to make the command unique from other commands. For example, you can abbreviate the show command to sh.