Configure an IPv6 Discovery Prefix

eui <1–3>

Configures the EUI address. The values are:

• (1) EUI not used

• (2) EUI with Universal/Local bit (U/L) complement enabled

• (3) EUI used without U/L

Use an EUI-64 interface ID in the address field. If enabled, use EUI, or use EUI-64 and the complement Universal/Local (U/L) bit. This operation provides for both global– and link-local addresses. After you create the entry, you cannot modify this value. This value is valid for use only when the prefix length is 64 or less. The default is EUI not used.

If you select EUI not used, this configuration creates an IPv6 ND prefix but no associated IPv6 address on the router. IF you select either EUI used with UL complement or EUI used without UL complement, an associated IPv6 adress is created by concatenating the specified prefix with the EUI-64 interface ID.

infinite

Configures the prefix valid lifetime so it never expires. The default is disabled, which means the prefix expires.

no-advertise

Removes the prefix from the neighbor advertisement. The default is disabled, which means the prefix is advertised.

no-autoconfig

Configures the prefix for use as the autonomous address configuration. This value is placed in the autoflag field in the prefix information option. The value is a 1-bit flag. The default is enabled.

no-onlink

Configures the prefix for use when determining if a node is online. This value is placed in the L-bit field in the prefix information option. The value is a 1-bit flag. The default is enabled.

preferred-life <0–4294967295>

Configures the preferred lifetime in seconds that indicates the length of time this prefix is advertised. The default value is 604800.

The preferred lifetime is the length of time for the tentative, preferred, and depreciated state of an autoconfiguration address.

The preferred lifetime value must be less than the valid lifetime value. If you must configure the valid lifetime value to a value lower than the current preferred lifetime, you must lower the preferred lifetime value first.

valid-life <0–0-4294967295>

Configures the valid lifetime in seconds that indicates the length of time this prefix is advertised. The default is 2592000.

A valid lifetime is the length of time of the preferred and depreciated state of an autoconfiguration address.

The preferred lifetime value must be less than the valid lifetime value. If you must configure the valid lifetime to a value lower than the current preferred lifetime, you must lower the preferred lifetime value first.

WORD <0–255>

Specifies the IPv6 address and prefix.