Configuring your devices

To perform the base configuration of routers and switches in Cisco Packet Tracer, follow these general steps

• Access the device CLI: Double-click on the router or switch in Packet Tracer to access its Command Line Interface (CLI).

• Enable privileged EXEC mode: Enter the following command to access the privileged EXEC mode:

enable

• Configure the hostname: Set a hostname for the device using the following command:

• php

configure terminal

hostname <hostname>

• Replace <hostname> with the desired hostname for the device.

• Secure privileged EXEC mode with a password: Set a password to secure access to the privileged EXEC mode using the following command:

enable secret <password>

• Replace <password> with the desired password.

• Secure console access with a password: Set a password to secure access to the device's console using the following command:

line console 0

password <password>

login

• Replace <password> with the desired console password.

• Secure remote access (optional): If you want to enable remote access via Telnet or SSH, configure the appropriate settings using the following commands:

line vty 0 15

password <password>

login

transport input telnet ssh

• Replace <password> with the desired password.

• Configure IP addressing: Set an IP address and subnet mask for the device's interface using the following command:

interface <interface-type> <interface-number>

ip address <ip-address> <subnet-mask>

no shutdown

• Replace <interface-type> with the specific interface type (e.g., FastEthernet, GigabitEthernet) and <interface-number> with the interface number (e.g., 0/0, 1/1). Replace <ip-address> with the desired IP address and <subnet-mask> with the appropriate subnet mask.

• Save and exit: Save the configuration changes and exit the CLI using the following commands:

end

copy running-config startup-config

• This will save the configuration to non-volatile memory, ensuring that the configuration persists upon device reboot.

By following these steps, you can perform the base configuration of routers and switches in Cisco Packet Tracer. Remember to adjust the specific commands and parameters according to your network requirements and the devices being configured.

Here is an example on how to make a default config

Basic Base Configuration:

Enable                                                                         // Enable the Command Line Interface

Configure Terminal                                                 // Enter the global configuration mode

Hostname SW3                                                        // Set the device name. We use "R" for a router and "SW" for a switch

Banner motd #Authorrized Access Only#          // Set a message to display during login

Service password-encryption                                // Encrypt passwords

Line console 0                                                              // Enter the console line configuration mode

Password cisco                                                             // Set the password for console access. example password is "cisco"

Login

Exit                                                                              // Exit the console line configuration mode

Enable secret cisco.

Line vty 0 4                                                                    // Enter the VTY line configuration mode

Password cisco                                                             // Set the password for VTY access. This password MUST ALWAYS be "cisco".

Login

End                                                                                   // Exit the configuration mode. Basic configuration is complete.

Copy running-config startup-config                     // Save the configuration