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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-26645-02
Chapter 1 Overview
IPv6 Considerations
Application Acceleration and Optimization—The ACE includes several optimization technologies
to accelerate Web application performance, optimize network performance, and improve access to
critical business information.
Command-Line Interface—The command-line interface (CLI) is a line-oriented user interface that
provides commands for configuring, managing, and monitoring the
ACE. For more information, see
the Command Reference, Cisco ACE Application Control Engine.
Related Topics
ACE Appliance Device Manager Overview, page 1-1
Command Reference, Cisco ACE Application Control Engine
IPv6 Considerations
The DM supports IPv6 configurations with the following considerations:
By default, IPv6 is disabled on an interface. You must enable IPv6 on the interface to enable its
configured IPv6 addresses. The interface cannot be in bridged mode. The interface may or may not
have IPv4 addresses configured on it.
When you enable IPv6 or configure a global IPv6 address on an interface, the ACE automatically
does the following:
Configures a link-local address (if it is not already configured)
Performs duplicate address detection (DAD) on both addresses
You must enable IPv6 on the interface to enable global IPv6 address.
IPv6 on interface can be individually enabled or disabled. IPv6 cannot be enable or disable globally.
A link-local address is an IPv6 unicast address that has a scope of the local link only and is required
on every interface. Every link-local address has a predefined prefix of FE80::/10. You can configure
a link-local address manually. If you do not configure a link-local address before enabling an IPV6
address on the interface, the ACE automatically generates a link-local address with a prefix of
FE80::/64. Only one IPv6 link-local address can be configured on an interface.
In a redundant configuration, you can configure an IPv6 peer link-local address for the standby
ACE. You can configure only one peer link-local address on an interface.
A unique-local address is an optional IPv6 unicast address that is used for local communication
within an organization and it is similar to a private IPv4 address (for example, 10.10.2.1).
unique-local addresses have a global scope, but they are not routable on the internet, and they are
assigned by a central authority. All unique-local addresses have a predefined prefix of FC00::/7. You
can configure only one IPv6 unique-local address on an interface.
In a redundant configuration, you can configure an IPv6 peer unique-local address on the active that
is synchronized to the standby ACE. You can configure only one peer unique-local IPv6 address on
an interface.
A global address is an IPv6 unicast address that is used for general IPv6 communication. Each
global address is unique across the entire Internet. Therefore, its scope is global. The low order 64
bits can be assigned in several ways, including autoconfiguration using the EUI-64 format. You can
configure only one globally unique IPv6 address on an interface.
In a redundant configuration, you can configure an IPv6 peer global address that is synchronized to
the standby ACE.
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