Switch(config)#hostname S1
S1(config)#no ip domain-lookup
S1(config)#interface Vlan1
S1(config-if)#no ip address
S1(config-if)#ipv6 enable
                ^
% Invalid input detected at '^' marker.
	
S1(config-if)#ipv6 address 2001:db8:acad:1::2/64
                ^
% Invalid input detected at '^' marker.
	
S1(config-if)#ipv6 address fe80::2 link-local
                ^
% Invalid input detected at '^' marker.
	
S1(config-if)#no shutdown

S1(config-if)#
%LINK-3-UPDOWN: Interface Vlan1, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
exit
S1(config)#end
S1#
%SYS-5-CONFIG_I: Configured from console by console
copy running-config startup-config
Destination filename [startup-config]? 
Building configuration...
[OK]
S1#
%LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
terminal length 0
            ^
% Invalid input detected at '^' marker.
	
S1#
S1#show running-config
Building configuration...

Current configuration : 1086 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname S1
!
!
!
no ip domain-lookup
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface FastEthernet0/1
!
 --More--