Configuration Guide     692
Configuring DHCP Filter DHCPv6 Filter Configuration
Server Port Select the port that the legal DHCPv6 server is connected.
2)  Click Create.
3.2  Using the CLI
3.2.1  Configuring the Basic DHCPv6 Filter Parameters
Follow these steps to complete the basic settings of DHCPv6 Filter:
Step 1 configure
Enter global configuration mode.
Step 2 ipv6 dhcp filter
Enable DHCPv6 Filter globally.
Step 3 interface {
 
fastEthernet 
port 
|
 
range fastEthernet 
port-list 
| gigabitEthernet
 port
 | range
 
gigabitEthernet
 port-list 
| ten-gigabitEthernet
 port
 | range
 
ten-gigabitEthernet
 port-list 
| 
interface port-channel
 port-channel-id
 | interface range
 
port-channel 
port-channel-id-list 
}
Enter interface configuration mode.
Step 4 ipv6 dhcp filter
Enable DHCPv6 Filter on the port.
Step 5 ipv6 dhcp filter limit rate 
value
Enable the limit rate feature and specify the maximum number of DHCP messages that can 
be forwarded on the port per second. The excessive DHCP packets will be discarded. 
value: 
Specify the limit rate value. The following options are provided: 0, 5,10,15,20,25 and 
30 (packets/second). The default value is 0, which indicates disabling limit rate.
Step 6 ipv6 dhcp filter decline rate 
value
Enable the decline protect feature and specify the maximum number of Decline packets 
can be forwarded per second on the port. The excessive Decline packets will be discarded.
value: 
Specify the limit rate value of Decline packets. The following options are provided: 0, 
5,10,15,20,25 and 30 (packets/second). The default value is 0, which indicates disabling this 
feature.
Step 7 show ipv6 dhcp filter
Verify the global DHCPv6 Filter configuration.
Step 8 show ipv6 dhcp filter interface [ fastEthernet
 port
 | gigabitEthernet
 port
 | ten-
gigabitEthernet
 port
 | port-channel 
port-channel-id
 ]
Verify the DHCPv6 Filter configuration of the port.
Step 9 end
Return to privileged EXEC mode.