Protect your network from rogue DHCP servers with Cisco switches

This will protect your network from rogue DHCP servers.

ip dhcp snooping

#Globally enables it

ip dhcp snooping vlan (whatever vlan's your want to protect)

interface gi1/1/1

#This would be the interface that your DHCP server is on, can also be a trunk if it's upstream

ip dhcp snooping trust

#Allow DHCP from whatever interface this is on

Show ip dhcp snooping

#This will show you a summary of what you've setup

I'll add some screenshots for this config later.

First post

I've created this basically as tech\setup notes for myself on tech stuff that I've setup\configured.

Things like Windows Servers, Cisco devices, SAN's, etc, etc...

I'm going to try to go into past things I've done when I have time but plan to keep current things posted regularly.


Anyways, this is for me and if it helps someone else then great!