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DES-7200 Configuration Guide Chapter 9 DHCP Snooping Configuration
9-6
9.2.2 Enabling Filtering
the DHCP Request
Message on the Port
By default, filtering the DHCP request message is disabled on the port. To enable this funciton,
execute the following command.
Command Function
DES-7200# configure terminal
Enter the global configuration mode.
DES-7200(config)# interface interface
Enter the interface configuration mode.
DES-7200(config)# [no] ip dhcp snooping
suppression
Enable or disable filtering the DHCP request
message.
The following example demonstrates how to enable filtering the DHCP request message:
DES-7200# configure terminal
DES-7200(config)# interface gigabitEthernet 0/1
DES-7200(config-if)# ip dhcp snooping suppression
9.2.3 Enabling
DHCP
Snooping in
VLAN
This command enables DHCP Snooping in the VLAN.
Command Function
DES-7200# configure terminal
Enter the global configuration mode.
DES-7200(config)# [no] ip dhcp snooping vlan
{vlan-rng | {vlan-min [vlan-max]}}
Enable DHCP Snooping in the VLAN.
Here is an example of enabling the DHCP Snooping in VLAN1000:
DES-7200# configure terminal
DES-7200(config)# ip dhcp snooping vlan 1000
DES-7200(config)# end
9.2.4 Configuring
DHCP Source
MAC Address
Check Function
After configuring this command, the device will match the MAC address of the DHCP Request
packet from the UNTRUST port against the one in the client field and discard unmatched
packet. By default, this funciton is not enabled.
To configure the source MAC address check function, execute the following command: