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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
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Ccna Lab 1: basic configurations of Cisco devices