CCNA Cisco Basic Learning Summary

The main learning is the Cisco Internetwork Operating System (IOS) software and the configuration files for routers and switches. This includes accessing and using the IOS CLI mode and configuration process, as well as understanding the meaning and help features of the prompt.

Managing IOS profiles and using an orderly approach to test and document network connectivity is an important skill for network administrators and network technicians.

Summary of IOS features and commands:

User execution mode
Enable-used to enter privileged execution mode

Privileged Execution mode
Copy Running-config startup-config-is used to copy the active configuration to NVRAM.
The copy startup-config running-config-is used to copy the configuration in NVRAM to memory.
The erase startup-configuration-is used to remove the configuration in NVRAM.
PINGIP address-Used to Ping the address.
TRACEROUTEIP address-used to track each hop that leads to that address.
Show interfaces-is used to display statistics for all interfaces on the device.
Show clock-is used to display the time set in the router.
Show version-is used to display the currently loaded IOS version as well as hardware and device information.
Show arp-is used to display the ARP table for the device.
Show startup-config-is used to display the configuration saved in NVRAM.

Show running-config-is used to display the contents of the current run configuration file.
The show IP interface-is used to display all interface IP statistics on the router.
The Configure terminal-is used to enter terminal configuration mode.

Terminal configuration mode
The hostnamehostname-is used to assign a host name to a device.
The Enable passwordpassword-is used to set an unencrypted enable password.
Enable secretpassword-is used to set the Enable password for strong encryption.
The service password-encryption-is used to encrypt all passwords displayed except the Enable encryption password.
The banner motd# message #-is used to set the day message banner.
Line console 0-used to enter the console route configuration mode.
Line vty 0 4-for entering virtual terminal (Telnet) route configuration mode.
Interface interface name-used to enter interface configuration mode.

Line configuration mode
The login-is used to enable password checking at logon.
The passwordpassword-is used to set the line password.

Interface configuration mode
IP Address IP Address subnet mask-used to set the interface IP address and subnet mask.
Describes the description-used to set the interface description.
The clock ratevalue-is used to set the clocking frequency of the DCE device.
No shutdown-is used to open the interface.
shutdown-shuts down the interface for administrative purposes.

CCNA Cisco Basic Learning Summary