In the NDP Settings tab, specify the maximum time to reach a neighbor.
For IPv6, this value also can be set for each interface on the NETWORK | System > Interfaces | Edit Interface > Advanced dialog. If Router Advertisement is enabled on an interface, the value set for the interface is used for that interface only. For more information, see Configuring Interfaces.
To specify the maximum time
When this option's value is set to 0, the global value of NDP settings is used.