IPv6 address autoconfiguration determines whether an interface IPv6 address will be auto-configured by acquiring the address from an attached router or must be manually configured. IPv6 address autoconfiguration is enabled for the interface by specifying the autoconfig option when entering the ipv6 address command in interface configuration mode.
The following example configures VLAN 3050 to acquire its IPv6 address from an attached router:
System(su-config)->interface vlan 3050 System(su-config-intf-vlan.0.3050)->ipv6 address autoconfig System(su-config-intf-vlan.0.3050)->