Enable IPv6 route advertisement on a port.
default ipv6 interface enable
ipv6 interface enable
ipv6 interface enable vlan <1-4059>
no ipv6 interface enable
Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1.
The default is disabled.
GigabitEthernet Interface Configuration