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DES-7200 Configuration Guide Chapter 2 IPv6 Configuration
2-19
dectect the uniqueness of an address. The address conflict detection should be carried
out for the manual configuration address, the stateless auto-configuration address or
the statefull auto-configuration address. However, it is not necessary to carry out the
address conflict detection under the following two conditions:
z The management prohibits the address conflict detection, namely, the number of
the neighbor solicitation messages sent for the address conflict detection is set to
0.
z The configured anycast address can not be applied to the address conflict
detection.
Furthermore, if the address conflict detection function is not disabled on the interface,
the system will enable the address conflict detection process for the configured
address when the interface changes to the Up status from the Down status.
The following is the configuration procedure of the quantity of the neighbor solicitation
message sent for the address conflict detection:
Command Meaning
DES-7200#configure terminal
Enter the global configuration mode.
DES-7200(config)#interface
interface-id
Enter the interface configuration mode.
Note that the no switchport command shall be
used to switchover the layer-2 port to the layer-3
interface.
DES-7200(config-if)#ipv6 nd dad
attempts attempts
The quantity of the neighbor solicitation message
sent for the address conflict detection. When it is
configured to 0, any neighbor solicitation message
is denied.
Enable the address conflict detection function on
the interface.
DES-7200(config-if)#end
Return to the privileged mode.
DES-7200#show ipv6 interface vlan
1
View the IPv6 information on the interface.
DES-7200#copy running-config
startup-config
Save the configuration.
Use the no ipv6 nd dad attempts command to restore the default value. The following
is an example to configure the times of the neighbor solicitation (NS) message sent for
the address conflict detection on the SVI1: