Enable IPv6 Stateless Address Autoconfiguration to generate addresses using a combination of locally available information and information advertised by routers.
The default is disabled.
enable
configure terminal
ipv6 autoconfig
Switch:1(config)#ipv6 autoconfig
The following example shows a sample output for the show ipv6 global command.
Switch:1#show ipv6 global
forwarding : disable
default-hop-cnt : 64
number-of-interfaces : 2
icmp-error-interval : 1000
icmp-error-quota : 50
icmp-unreach-msg : disable
icmp-addr-unreach-msg : enable
icmp-port-unreach-msg : enable
icmp-echo-multicast-request : enable
static-route-admin-status : enable
alternative-route : enable
ecmp : disable
ecmp-max-path : 1
source-route : disable
host-autoconfig : enable