8- and 24-Port Gigabit L2 Managed Power-over-Ethernet (PoE) Switches
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4.19 DHCP Snooping
DHCP snooping menu tree.
4.19.1 DHCP Snooping State
Function name: DHCP Snooping State
Function description:
The addresses assigned to DHCP clients on unsecure ports can be carefully controlled using the dynamic bindings registered with
DHCP Snooping. DHCP snooping allows a switch to protect a network from rogue DHCP servers or other devices that send port-
related information to a DHCP server. You can use this information to track an IP address back to a physical port.
Figure 4-170. DHCP Snooping State.
Parameter description:
DHCP Snooping state: The parameter disables or enables the DHCP snooping function on the switch. The default is Disabled.
NOTE:
Click on the ” Apply” button when you finish the configuration.
4.19.2 DHCP Snooping Entry
Function name:
DHCP Snooping Entry
Function description:
DHCP snooping Entry allows a switch to add a trusted DHCP server and 2 trusted ports to the DHCP snooping entry. You can
use this information to track an IP address back to a physical port and enable or disable the DHCP Option 82.
DHCP Snooping State
DHCP Snooping Entry
DHCP Snooping
DHCP Snooping Client