Daily Cisco Tutorials | DHCP Snooping Explained...Prevent Man In The Middle Attacks

Security should be at the foundation of every Network. One thing we want to prevent is a Rogue DHCP Server from coming onto our network and giving out IP Addresses to our clients. This can lead to a "Man In The Middle" attack.
A Rogue DHCP Server is a server on the network that is not authorized to be there. Learn how DHCP can help prevent against Rogue DHCP Servers leading to Man In The Middle Attacks

[@kennnmkn4958]

Well explained

[@rockinron5113]

Really well explained. Thanks.

[@noodle9843]

Very well explained. How do i make a port trusted?

[@ShopperPlug]

Excellent explanation, what happens if the hacker takes out the lan cable from trusted port and connects his home router for man in the middle attack? Will the switch can distinguish between the real router and the hacker router?

[@ciscenius]

It won't because it's a trusted port. When you configure the port as trusted, it doesn't look at any DHCP messages received on that port. But normally, no one would disconnect your core router or the router i nyour network from the switch. The switch might not detect it, but you will if you have the proper alarms in place