Ccna Lab 1: basic configurations of Cisco devices

650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/49/D7/wKioL1QbxlKRIopYAACmHPDQ0xs570.jpg "Title =" 11111111.jpg" alt = "wkiol1qbxlkriopyaacmhpdq0xs570.jpg"/>

Lab objectives:

1: understand how to use the ciscopacket tracer Simulator

2: Master common configuration commands for Cisco devices

 

Tutorial steps:

1: Use a Cisco switch or router to practice common commands

2: Common commands for configuring Cisco Routers

3: Configure Common commands for Cisco switches

4: summarize common show commands

 

Lab notes:

 

 

 

 

 

Experiment Configuration:

1: Common configuration commands

Switch> # user mode, similar to the Guest account of the computer system, with low Permissions

Switch> enable # privileged mode, similar to the administrator account of the computer system, with the highest Permissions

Switch # disable # return command in privileged mode, which can be returned to user mode

Switch> E? # Letter plus? Displays all commands starting with this letter in current mode for selection.

Enable exit # There are two commands starting with "e"

Switch> E # The command can be abbreviated as ", but the entered character is unique. If it is not unique, an error is returned.

% Ambiguous command: "E" # The system cannot recognize the commands starting with E because they are not unique.

Switch> en # The command starting with EN is already unique. The system recognizes it as an enable command.

Switch # Use the abbreviated command en to successfully log on to the privileged Mode

 

Switch # configure? # Command addition? Commands or parameters that can be entered after the command is displayed

Terminal configure from the terminal

<CR>

Switch # configureterminal # enter the configuration mode. All configurations must first enter this mode.

Switch (config) # hostname # configure the device name

% Incomplete command. # The prompt is that the command input is incomplete, indicating that the hostname must be entered again

Switch (config) # hostname? # Available? View specific input requirements

Word this system's network name

Ccna (config) # hostnameeeccna

^# Prompt ^ command error corresponding to symbol

% Invalid input detected at '^' marker.

Switch (config) # hostnameccnp # change the device name to ccnp

Ccnp (config) # nohostname ccna # Use the no command to add the original command to delete the configured command

Switch (config) # hostnameccna # reconfigure the device name to ccna

 

Ccna (config) # noip domain-lookup # disable the device domain name resolution Function

Ccna (config) # lineconsole 0 # enter the console interface

Ccna (config-line) # loggingsynchronous # enable the log synchronization function. The configuration command will not be interrupted by logs.

Ccna (config-line) # exec-timeout0 0 # Disable Console interface configuration timeout

Ccna (config-line) # noexec-Timeout # disabling console interface configuration timeout (not recommended)

Ccna (config-line) # exit # return command, only one level can be returned at a time

Ccna (config) # End # return command, directly return to privileged Mode

Ccna #

 

 

Ccna # configure Terminal

Ccna (config) # enablepassword ccna # configure the plaintext privileged password. The old command is insecure and is not recommended.

Ccna (config) # enablesecret ccnp # configure the encryption privilege Password

 

Ccna (config) # linevty? # View the maximum virtual terminal lines supported by the current device

<0-15> first line number # The current device supports a maximum of 16 virtual terminal lines

Ccna (config) # linevty 0 8 # configure the first nine virtual terminal lines

Ccna (config-line) # passwordccn # configure the vty password, that is, the Telnet Password

Ccna (config-line) # login # configure vty Verification

Ccna (config-line) # exec-timeout5 30 # configure vty timeout for 5 minutes 30 seconds

Ccna (config-line) # loggingsynchronous # enable vty log Synchronization

Ccna (config-line) # exit

 

Ccna (config) # lineconsole 0 # enter the Console port configuration

Ccna (config-line) # passwordccna # configure the Console port Password

Ccna (config-line) # login # configure Console port verification

 

Ccna (config) # bannermotd # neibu shebei # configure the login banner, similar to "Declaration"

Ccna (config) # interfacefa0/1 # enter the interface configuration mode and configure an Interface

Ccna (config-If) # descriptionit, addny, QQ, 396898532 # configuration interface description for convenient management

Ccna (config-If) # speed? # Can I configure the port speed? View the speed supported by the current interface

10 force 10 Mbps operation

100 force 100 Mbps operation

Auto enable auto speed configuration

Ccna (config-If) # speed100 # configure the port speed to 100 m

Ccna (config-If) # duplex? # Can I Configure port duplex mode? View the modes supported by the current interface

Auto enable auto duplex Configuration

Full force full duplex operation

Half force half-duplex operation

Ccna (config-If) # duplexfull # configure the port duplex mode to full duplex

 

 

Ccna # copyrunning-config startup-config # Save the configuration (standard command)

Ccna # writememory # Save configuration, Quick Command, common

Ccna # reload # restart the device

Ccna # erasestartup-config # clear the current configuration, do not clear and save part of the flash Configuration

 

2: Switch command

Ccna (config) # interfacevlan 1 # configure the vswitch management address

Ccna (config-If) # IPaddress 192.168.1.1 255.255.255.0

Ccna (config-If) # noshutdown # manual enabling of the vswitch's Virtual Interface

Ccna (config-If) # exit

Ccna (config) # ipdefault-Gateway 192.168.1.254 # configure the default gateway of the switch

 

3: Router command

Continuewith configuration dialog? [Yes/No]: N # command no, jump out of the dialog configuration mode (this mode is generally not used)

 

R1 (config) # interfacefa0/0 # configure the interface address. The address must be configured for all interfaces of the router.

R1 (config-If) # IPaddress 192.168.1.2 255.255.255.0

R1 (config-If) # noshutdown # You must manually enable the physical interfaces of the router.

 

R1 (config-If) # inters0/3/0

R1 (config-If) # IPaddress 192.168.1.3 255.255.255.0

% 192.168.1.0 overlaps with fastethernet0/0 # The network segment overlaps with the fa0/0 port. The router has one port and one network segment.

R1 (config-If) # IPaddress 192.168.2.2 255.255.255.0 # reconfigure the address in an independent network segment

R1 (config-If) # noshutdown

R1 (config-If) # clockrate 64000 # configure the clock frequency of the DCE serial port. Currently, the device automatically detects and configures

 

R1 (config) # config-register0x2142 # configure the boot sequence, 2102 indicates that the configuration is not loaded into the system, often used for Password Recovery

 

 

4: Common show commands

Ccna # showrunning-config # view the current configuration, including the default configuration of the device

Ccna # showstartup-config # view the startup configuration, that is, the saved configuration

Ccna # showversion # view the version system, that is, display the main content of system self-check

Ccna # showflash: # view the flash, including space and file confidence

Ccna # showinterfaces fa0/0 # display interface information, mainly display physical layer information

Ccna # showip interface Brief # brief display of all interface information, including the port address and port status

Ccna (config-If) # doshow IP inter Bri # You can use do plus to view or test commands in any mode.

Ccna (config-If) # doping 192.168.1.254

 

 

 

This article is from the "Cisco technical exchange" blog. For more information, contact the author!

Ccna Lab 1: basic configurations of Cisco devices