Statically configuring a global unicast address
Syntax:
ipv6 address [<network-prefix>
<interface-id> |
<prefix-length> ]
no ipv6 address [<network-prefix>
<interface-id> |
<prefix-length> ]
ipv6 address [<network-prefix> ::/
<prefix-length> eui-64
]
no ipv6 address [<network-prefix> ::/
<prefix-length> eui-64
]
If IPv6 is already enabled on the VLAN, the previous commands statically configure a global unicast address, but have no effect on the current link-local address.
If IPv6 is not already enabled on a VLAN, either of these command options enable IPv6 on the VLAN, configure a link-local address using the EUI-64 format, or statically configure a global unicast address.
After verification of uniqueness by DAD, the lifetime of a statically configured IPv6 address assigned to a VLAN is set to
permanent
and is configured as a preferred address.
If no other IPv6-enabling command is configured on the VLAN, the
no
form of the command erases the specified address and disables IPv6 on the VLAN.
<network-prefix>
: Includes the global routing prefix and the subnet ID for the address.
<interface-id>
: Enters a user-defined interface identity.
<prefix-length>
: Specifies the number of bits in the network prefix. If you are using the
eui-64
option, this value must be 64.
eui-64
: Specifies using the Extended Unique Identifier (EUI) format to create an interface identifier based on the VLAN MAC address.