Week 2 - Understanding basic commands of packet tracer by configuring switches

  • ENABLE: To enter privileged EXEC mode or any other security level set by a system administrator, use the enable EXEC command.
                             Syntax: >> enable [priviledge level]
                                          ---> privilege level: optional
  • CONFIGURE TERMINAL/ config t: Enter the global configuration mode, when using the console part.
                              Eg. >> enable
                                    >> config t
                          (config)#
  • EXIT: To exit any configuration mode to the next highest mode in the CLI mode hierarchy, use the exit command in any configuration mode.
                             E.g. >>exit
  • INT FA 0/0 OR 0/1: The notation is denoting that there are multiple NIC interfaces on the switch/ router. 'fa' indicates that the NIC port is most likely a fast ethernet type of connection.
                            E.g. >> int fa 0/0
  • SWITCH PORT ACCESS: To set the access VLAN when the interface is in access mode.
                           Syntax >> switchport access -vlan id-
                                            -vlan id- VLAN to set when the interface is in access mode.
                                                           The range is from 1 to 4094 except for the VLANs reserved
                                                            for external use. 

CONNECTING PCS WITH SWITCH:

  • First, take 4PCs and label them as PC 0, 1, 2, 3.
  • Now, Connect these 4PCs through Copper Straight Through cable to switch ST2950T-24.
  • Then, configure the IP Addresses of all the PCs by setting the IPs as 198.162.100.10/ 20/ 30/ 40.
  • Now, open the CLI of the switch and tap ENTER. Now from here, we will be able to configure the switch.
  • Then enter 'enable' in the CLI.  [  (switch)# enable  ]
  • Enter 'config t' or 'config terminal' on CLI.
                          (switch)# enable
                          (switch)# config t
                          (config)#
  • Now enter the vlan2 to make another virtual LAN other than default and name it as you want. Here we took CCE.
                          (config)# vlan2
                 (config-vlan)# name cce
  • This will create your vlan2 (CCE).
  • Now enter exit.
                (config- vlan)# exit
                        (config) #
  • Enter the int fa 0/0 to config the interface of fast ethernet 0/0.
                       (config)# int fa 0/0
                 (config-fa )#
  • Now we will switch the port of PC0 from VLAN 1 to VLAN 2 by entering switchport access vlan2.
                 (config-fa)# switchport access vlan2
  • This way we can config the PCs and get them into their own LAN network.

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