IPv6 Addressing Configuration

View the Current IPv6 Addressing Configuration

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.

■Manual: The address was statically configured 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.

For example, figure 4-1shows the output on a switch having IPv6 enabled on one VLAN.

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