DHCP Snooping prevention

To deny access to rogue DHCP servers into your network you need to configure DHCP Snooping on a Cisco switch. DHCP Snooping must be enabled on the interface to the DHCP Server.

S1(config)# ip dhcp snooping
S1(config)# interface fa0/1
S1(config-if)# ip dhcp snooping trust
S1(config-if)# ip dhcp snooping vlan 1,3,4

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s