Chapter-15, LEC-4 | Disable CDP | #ethicalhacking #cybersecurity #cybersport

CDP (Cisco Discovery Protocol) is a proprietary protocol used by Cisco networking devices to share information about other directly connected Cisco equipment. It allows network administrators to identify and track the status of neighboring Cisco devices and their interfaces, such as switches, routers, and access points.

Disabling CDP can be necessary in some situations to improve network security or to reduce network traffic. Here's how to disable CDP on a Cisco switch:

Connect to the switch using a console or SSH session.

Enter privileged EXEC mode by typing "enable".

Enter global configuration mode by typing "configure terminal".

Disable CDP globally by typing "no cdp run". This command will turn off CDP on all interfaces of the switch.

(Optional) Disable CDP on a specific interface by entering interface configuration mode and typing "no cdp enable". This command will turn off CDP on the specified interface only.

Save the configuration changes by typing "write memory" or "copy running-config startup-config".

Note that disabling CDP can impact the visibility of neighboring Cisco devices and their status information. If you need to re-enable CDP later, you can do so by typing "cdp run" in global configuration mode.

In addition to disabling CDP, it is also a good practice to disable other unnecessary protocols or services that can pose security risks or consume network resources. Regular security audits and vulnerability assessments can help identify and mitigate potential risks in network infrastructure