User EXEC
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Begin a session with your router.
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Router>
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To exit a router session, enter the
logout command.
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Use this mode to:
- Change terminal
settings.
- Perform basic
tests.
- Display system information.
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Privileged EXEC
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Enter the
enable command from user EXEC mode.
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Router#
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- To exit to user EXEC mode, enter the
disable command.
- To enter global configuration mode, enter the
configure command.
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Use this mode to:
- Configure your router operating parameters.
- Perform the verification steps shown in this guide.
To prevent unauthorized changes to your router configuration,
protect access to this mode by using a password as described in the
Enable Secret Passwords and Enable Passwords.
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Global configuration
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Enter the
configure command from privileged EXEC
mode.
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Router (config)#
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- To exit to privileged EXEC mode, enter the
exit or
end command, or press
Ctrl-Z.
- To enter interface configuration mode, enter the
interface command.
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Use this mode to configure parameters that apply to your router
globally.
From this mode you can access the following modes:
- Interface configuration
- Router configuration
- Line configuration
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Interface configuration
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Enter the
interface command (with a specific
interface, such as
interface
atm
0) from global configuration mode.
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Router (config-if)#
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- To exit to global configuration mode, enter the
exit command.
- To exit to privileged EXEC mode, enter the
end command, or
press
Ctrl-Z.
- To enter subinterface configuration mode, specify a
subinterface by using the
interface command.
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Use this mode to configure parameters for the router Ethernet
and serial interfaces or subinterfaces.
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Router configuration
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Enter one of the
router commands followed by the
appropriate keyword—for example
router
rip—from global configuration mode.
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Router (config- router)#
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- To exit to global configuration mode, enter the
exit command.
- To exit to privileged EXEC mode, enter the
end command, or
press
Ctrl-Z.
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Use this mode to configure an IP routing protocol.
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Line configuration
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Enter the
line
command with the desired line number and optional line
type, for example,
line
0, from global configuration mode.
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Router (config- line)#
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- To exit to global configuration mode, enter the
exit command.
- To exit to privileged EXEC mode, enter the
end command, or press
Ctrl-Z.
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Use this mode to configure parameters for the terminal line.
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