Disabling IPv6 on a Layer 2 switch

IPv6 is enabled by default in the Layer 2 switch code. If desired, you can disable IPv6 on a global basis on a device running the switch code. To do so, enter the following command at the Global CONFIG level of the CLI. 

device(config)#no ipv6 enable

Syntax: no ipv6 enable

To re-enable IPv6 after it has been disabled, enter ipv6 enable .

NOTE
IPv6 is disabled by default in the router code and must be configured on each interface that will support IPv6.
Parent topic: IPv6 management