IOS CLI primarni načini naredbe
Summary
TLDRThis video script provides an introduction to the Cisco IOS command interface, explaining the various modes available for different user privileges. Starting with User Exec Mode, the script demonstrates how to enter Privileged Exec Mode using the 'enable' command, which grants access to more commands. It also covers Global Configuration Mode, where most switch or router configurations are made, and Interface Configuration Mode, emphasizing the importance of using commands within the correct mode to avoid errors.
Takeaways
- 💻 Start by accessing the console command line interface (CLI) on Cisco IOS.
- ⌨️ Press 'Enter' to begin and observe the command prompt indicating the current mode.
- 🔐 User EXEC mode is the default with limited privileges and commands.
- 🔑 Use 'enable' command to elevate to privileged EXEC mode, signified by a hash or pound sign.
- 🚀 Privileged EXEC mode provides higher privileges and access to more commands.
- ⚙️ Enter Global Configuration mode by typing 'configure terminal' for broader switch/router configurations.
- 🔄 Sub-configuration modes like Interface Configuration mode are accessed for specific settings.
- 📡 Interface Configuration mode is entered by typing 'interface VLAN 1', for example.
- 🚫 Commands may not work if attempted from the wrong mode, which is a common mistake for new users.
- ✅ Always check your prompt to ensure you are in the correct mode when commands aren't working as expected.
Q & A
What is the initial mode a user starts in when interacting with Cisco IOS through a console command line interface?
-The initial mode a user starts in is User Exec Mode, indicated by the command prompt showing the default name of the switch with a greater than sign (>).
What command allows a user to transition from User Exec Mode to a higher privilege level in Cisco IOS?
-The 'enable' command is used to transition from User Exec Mode to Privileged Exec Mode.
How can you identify that you are in Privileged Exec Mode in Cisco IOS?
-You can identify Privileged Exec Mode by the change in the command prompt from a greater than sign (>) to a hash or pound sign (#).
What is Global Configuration Mode in Cisco IOS, and how do you enter it?
-Global Configuration Mode is where most configurations of a switch or router take place. You can enter it by typing 'configure terminal' and pressing enter.
What is Interface Configuration Mode, and how does one access it?
-Interface Configuration Mode is a sub-configuration mode used to configure specific interfaces. It can be accessed by typing 'interface' followed by the interface type and number, such as 'interface VLAN 1'.
Why might a user encounter an error when attempting to use a command in Cisco IOS?
-A user might encounter an error if they are trying to use a command from the wrong mode, as many commands are only available within certain modes.
What is the significance of the command prompt in determining the current mode in Cisco IOS?
-The command prompt is significant as it indicates the current mode the user is in, which determines the set of commands that are available to them.
What is a common mistake made by new users when working with Cisco IOS?
-A common mistake is trying to use commands that are not available in the current mode, leading to errors and confusion.
How can a user verify they are in the correct mode when encountering command errors in Cisco IOS?
-A user should always check the command prompt to ensure they are in the correct mode before attempting to execute a command.
What is the purpose of different command modes in Cisco IOS?
-Different command modes in Cisco IOS establish various privilege levels for users, allowing access to a different set of commands based on the level of access required.
Can a user execute all commands from any mode in Cisco IOS?
-No, certain commands are restricted to specific modes, and attempting to execute them from the wrong mode will result in an error.
Outlines
💻 Introduction to Cisco IOS Command Modes
This paragraph introduces the viewer to the Cisco IOS command interface. It begins with accessing the console command line interface through terminal emulation and explains the initial command prompt indicating the user is in user exec mode. The paragraph details the limited commands available in this mode, such as 'enable', which transitions the user to privileged exec mode, signified by a change in the command prompt from a greater than sign to a hash or pound sign. The user's privilege level is higher in this mode, allowing access to more commands. The paragraph also introduces the concept of Global configuration mode, which is accessed by typing 'configure terminal' and is where most configurations for a switch or router are made. Additionally, it mentions sub-configuration modes, such as interface configuration mode, which is entered by typing 'interface VLAN 1'. The paragraph concludes with a common mistake made by new users: attempting to use commands from the incorrect mode, and the importance of checking the command prompt to ensure the user is in the correct mode.
Mindmap
Keywords
💡Cisco IOS
💡Command Mode
💡User Exec Mode
💡Privileged Exec Mode
💡Global Configuration Mode
💡Interface Configuration Mode
💡Command Prompt
💡Enable Command
💡VLAN
💡Configuration
💡Error Message
Highlights
Introduction to Cisco IOS command modes
Accessing the console command line interface
Understanding command prompts and modes in Cisco IOS
Default user exec mode with limited privileges
Enabling privileged exec mode for higher access
Privileged exec mode indicated by a hash or pound sign
Accessing Global Configuration mode for advanced settings
Commands available in Global Configuration mode
Entering Interface Configuration mode for specific settings
Interface Configuration mode indicated by a prompt change
Commands that work only within certain modes
Common mistake of using commands in the wrong mode
Checking the command prompt to ensure the correct mode
The importance of command mode awareness for new users
Troubleshooting command errors by verifying the mode
Navigating through different command modes in Cisco IOS
Summary of the importance of command modes in Cisco IOS
Transcripts
let's examine the Cisco IOS command
modes I'll click on
pc1 click on the terminal emulation
program click okay and you can see that
I'm presented with a console command
line interface this is the Cisco iOS
I'll press enter on my keyboard to get
started notice the command prompt at the
bottom left of the screen which
indicates the command mode that I'm in
The Cisco iOS uses different command
modes to establish various privilege
levels for users different commands are
available in each mode for instance the
word switch which is the default name of
the switch with the greater than sign
indicates that I'm in user exec mode
user exec mode has very little
privileges with access to only a limited
number of commands one of those commands
available in this mode is the enable
command
at the blinking cursor I'll type the
command enable and press enter and I'm
now in privileged exec mode I can tell
this because the prompt has changed from
a greater than sign to a hash or a pound
sign privileged exec mode offers a
higher privilege level for the user and
more commands are available if I would
like to go to a higher level I can go
into Global configuration mode or global
config mode for short I can reach Global
config mode by typing in configure
terminal and pressing enter and now you
can see the global configuration prompt
this is where most configurations of a
switch or router take place there are
also subc configuration modes like
interface configuration mode if I type
interface VLAN 1 and press enter I'm
presented with a prompt that indicates I
am now in interface configuration mode
many commands will only work from within
certain modes a common mistake made by
users new to working with the Cisco iOS
is trying to use commands from within
the wrong mode if you are sure that you
are typing a command correctly but you
are continually getting an error message
always check your prompt to make sure
you are in the right mode
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