Configuring the maximum number of attempts to send an NS message for DAD
An interface sends an NS message for DAD after acquiring an IPv6 address. If the interface does not receive a response within a specific time (determined by the ipv6 nd ns retrans-timer command), it continues to send an NS message. If the interface still does not receive a response after the number of sent attempts reaches the threshold (specified with the ipv6 nd dad attempts command), the acquired address is considered usable.
To configure the attempts to send an NS message for DAD:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Configure the number of attempts to send an NS message for DAD. | ipv6 nd dad attempts value | Optional. 1 by default. When the value argument is set to 0, DAD is disabled. |