Configure A Network Operating System: Introduction To Networks v5.1
Configure A Network Operating System: Introduction To Networks v5.1
Configure A Network Operating System: Introduction To Networks v5.1
2.0 Introduction
2.1 IOS Bootcamp
Chapter Outline
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Section 2.1:
IOS Bootcamp
Upon completion of this section, you should be able to:
Explain the purpose of Cisco IOS.
Explain how to access a Cisco IOS device for configuration purposes.
Explain how to navigate Cisco IOS to configure network devices.
Describe the command structure of Cisco IOS software.
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Topic 2.1.1:
Cisco IOS
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Operating Systems
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Purpose of OS
PC operating systems enable a user to:
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Topic 2.1.2:
Cisco IOS Access
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Access Methods
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Topic 2.1.3:
Navigate the IOS
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of a Cisco device.
After being consoled in, the network technician will have to navigate
The Cisco IOS modes use a hierarchical structure and are quite
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To configure the device must enter this mode with configure terminal
command
Example: Switch(config)#
CLI configuration changes are made that affect the operation of the
device as a whole
From this mode, the user can enter different sub-configuration modes
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Topic 2.1.4:
The Command Structure
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or traceroute.
Ctrl-C Aborts the current command and exits the configuration mode
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Section 2.2:
Basic Device Configuration
Upon completion of this section, you should be able to:
Configure hostnames on a Cisco IOS device using the CLI.
Use Cisco IOS commands to limit access to device configurations.
Use IOS commands to save the running configuration.
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Topic 2.2.1:
Hostnames
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Device Names
Guidelines to Choose a Hostname
Configuring Device Names
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Configure Hostnames
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Topic 2.2.2:
Limit Access to Device Configurations
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Configure Passwords
Privileged EXEC Password Example
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Use the enable secret command, not the older enable password
command.
password is encrypted.
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The number of VTY lines supported varies with the type of device
and the IOS version.
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Encrypt Passwords
service passwordencryption
Prevents passwords
from showing up as
plain text when
viewing the
configuration.
Purpose of this
command is to keep
unauthorized
individuals from
viewing passwords in
the configuration file.
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Banner Messages
These are an important
a login is "welcome" or
"invited" is not
appropriate.
notification because it is
displayed to all
connected terminals.
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Topic 2.2.3:
Save Configurations
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mode.
Switch# reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]
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running-config or show
startup-config command
at the privileged EXEC
prompt. Text displayed in
the terminal window will
be placed into the
chosen file.
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Section 2.3:
Address Schemes
Chapter Objectives:
Explain how devices communicate across network media.
Configure a host device with an IP address.
Verify connectivity between two end devices.
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Topic 2.3.1:
Ports and Addresses
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IP Addresses
Connecting End Devices
Configuring a Static IP
Address on a Host
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networking devices.
Cisco IOS switches have physical ports for devices to connect to, but they also
have one or more switch virtual interfaces (SVIs). No physical hardware on the
device is associated with it. It is created in software.
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Topic 2.3.2:
Configure IP Addressing
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IP address - Together with subnet mask, uniquely identifies end device on internetwork
Subnet mask - Determines which part of a larger network is used by an IP address
interface VLAN 1 - Interface configuration mode
ip address 192.168.10.2 255.255.255.0 - Configures the IP address and subnet mask for
the switch
no shutdown - Administratively enables the interface
Switch still needs to have physical ports configured and VTY lines to enable remote
management
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Topic 2.3.3:
Verifying Connectivity
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Section 2.4:
Summary
Chapter
Objectives:
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Topic 2.4.1:
Conclusion
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Thank you.