How to protect your Cisco network from Rogue DHCP server in 2023

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Have your users ever brought down your network by bringing their own wireless router into your network and accidentally introducing a new DHCP server in your network?
Or have you seen incorrectly configured appliances from a vendor that has its own default subnet and DHCP, and of course, again, introducing a new subnet to the broadcast domain?
How about users that try to hack you using man in a middle attack by introducing their own DHCP Server?
In this video, I explain how to mitigate risks caused by the DHCP rogue server in your Cisco switching environment.

[@carloscastroquintosa3598]

Finally someone explain how avoid that issue with real work environment, I'm preparing myself for CCNA certification and your videos are very helpful

[@tahersadeghi6773]

Hard to read the text on the screen. The black background makes the characters unreadable.

[@ITSolutionsNetwork]

You are right; green characters were better; I'll have to switch to green characters again.

[@carloscastroquintosa3598]

Which cisco router and switches do you recommend for home lab and practice purposes? Can you provide a link to see if I can afford it? I wanted to make my own network front scratch, I see you have a video using a router from scratch that is super helpful, I appreciate your help, thank you for everything you are doing

[@ITSolutionsNetwork]

Thanks.
For switches, I would go with Catalyst 3750-X; for the router, I'd use virtualization.

[@carloscastroquintosa3598]

@@ITSolutionsNetwork virtual router? The only thing that I'm using is packetracer but I want to put my hands in real equipment, I will check for that switch, again router recommendations? Sorry my English is no to good

[@ITSolutionsNetwork]

@@carloscastroquintosa3598 For router lookup for Cisco 1841; it's old and probably won't support anything new, but for starting should be enough.