Use this command to configure the number of Neighbor Discovery (ND) neighbor solicitation messages to send during Duplicate Address Detection (DAD) on unicast IPv6 addresses on the interface.
| num | Specifies the number of neighbor solicitation messages to send during DAD. Valid values are 0 - 600 messages. Default value is 1 message. |
None.
Interface configuration.
Duplicate address detection sends neighbor solicitation messages with an unspecified source address targeting its own “tentative” address. Such messages trigger nodes already using the address to respond with a multicast neighbor advertisement indicating that the address is in use.
The no ipv6 nd dad attempts command disables the sending of neighbor solicitation messages during DAD. Setting the number of messages to 0 also disables the sending of neighbor solicitation messages during DAD.
This example sets the number of neighbor solicitation messages to send during DAD at 5 for VLAN 50:
System(su-config)->interface vlan 50 System(su-config-intf-vlan.0.50)->ipv6 nd dad attempts 5 System(su-config-intf-vlan.0.50)->
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