Installation guide

10-21
Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-26645-02
Chapter 10 Configuring Network Access
Configuring Virtual Context VLAN Interfaces
IPv6 Routing Prefix
Advertisement
Click the Add button to configure the IPv6 prefixes that the ACE
advertises in RA messages on the local link.
IPv6 Address/Prefix
Length
To configure IPv6 address advertised in the RA messages, enter a
complete IPv6 address in the first field. In the second field after the /,
enter the prefix length to specify how many of the most significant bits
(MSBs) are used for the network identifier.
No Advertisements Check the check box to indicate that the route prefix is not advertised.
Clear the check box to indicate that the route prefix is advertised.
Lifetime Configure the prefix lifetime attributes as follows:
• Lifetime Duration:
– Valid Lifetime—By default, the prefix lifetime is 2592000
seconds (30 days). To configure the prefix lifetime in seconds,
enter an integer from 0 to 2147183647.
Select Infinite to indicate that the prefix never expires.
– Preferred Lifetime—By default, the prefix lifetime is 604800
seconds (10 days).To configure how long an IPv6 address
remains preferred in seconds, enter an integer from 0 to
2147183647. This lifetime must not exceed the Valid Lifetime.
Select Infinite to indicate that the preferred lifetime never
expires.
• Lifetime Expiration Date:
– Valid Month/Day/Year/Time—Valid lifetime expiration date
and time.
– Preferred Month/Day/Year/Time—Preferred lifetime
expiration date and time.
Use the drop-down lists to select a day, month, and year. To specify
the time, use the hh:mm format.
Off-link: This option appears when you enter a Preferred Lifetime field.
Check this check box to indicate that the route prefix is on a different
subnet for a router to route to it.
Clear the check box to indicate that the route prefix is on the same
subnet for a router to route to it.
No-autoconfig This option appears when you enter a Preferred Lifetime field.
Check this check box to indicate to the host that it cannot use this prefix
when creating an stateless IPv6 address.
Clear the check box to indicate to the host that it can use this prefix
when creating an stateless IPv6 address.
Table 10-3 VLAN Interface Attributes (continued)
Field Description