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4-22
IPv6 Addressing Configuration
View the Current IPv6 Addressing Configuration
For example, figure 4-1 shows the output on a switch having IPv6 enabled on
one VLAN.
Address Origin:
■ Autoconfig: The address was configured using stateless
address autoconfiguration (SLAAC). In this case, the
device identifier for global unicast addresses copied from
the current link-local unicast address.
■ DHCP: The address was assigned by a DHCPv6 server. Note
that addresses having a DHCP origin are listed with a 128-
bit prefix length.
■ Manua:l: The address was statically configred on the VLAN.
■ IPv6 Address/Prefix Length: Lists each IPv6 address and
prefix length configured on the indicated VLAN.
Address Status:
■ Tentative: DAD has not yet confirmed the address as
unique, and is not usable for sending and receiving traffic.
■ Preferred: The address has been confirmed as unique by
DAD, and usable for sending and receiving traffic. The
Expiry time shown for this address by the show ipv6 vlan
< vid > command output is the preferred lifetime assigned
to the address. (Refer to "Address Lifetimes" on page xxx.)
■ Deprecated: The preferred lifetime for the address has been
exceeded, but there is time remaining in the valid lifetime.
■ Duplicate: Indicates a statically configured IPv6 address
that is a duplicate of another IPv6 address that already
exists on another device belonging to the same VLAN
interface. A duplicate address is not used.