Network technologies and trends

Nov 20 2008   7:54AM GMT

What is Dynamic Host Configuration Protocol (DHCP) Snooping?



Posted by: Yasir Irfan
Tags:
Cisco
Cisco 2960
Cisco 3560
Cisco 3745
Cisco 6500
Cisco 6500 Series Catalyst Switch
Cisco 6503
Cisco Catalyst 6503-E Switch
Cisco Catalyst 6506-E Switch
Cisco Catalyst 6509-E Switch
Cisco Catalyst 6509-V-E Switch
Cisco Catalyst 6513 Switch
Cisco Systems
Cisco Tips
DHCP
DHCP Snooping
Network Security
Security
Switches
Switching

Dynamic Host Configuration Protocol (DHCP) Snooping is a security feature which filters untrusted DHCP messages, this security feature can protects the devices on the network from associating with an unauthorized DHCP server. When the Dynamic Host Configuration Protocol (DHCP) Snooping feature is enabled on a Cisco Switch , the Cisco Switch builds a table of MAC address, IP address lease time , binding type and interface information. In coming posts I will try to explain to how to enable and configure the Dynamic Host Configuration Protocol (DHCP) snooping security feature in a Cisco Switch.

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