Cisco 500 Series Administration Manual page 387

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STEP 5
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- Anycast—The IPv6 address is an Anycast address. This is an address
that is assigned to a set of interfaces that typically belong to different
nodes. A packet sent to an Anycast address is delivered to the closest
interface—as defined by the routing protocols in use—identified by the
Anycast address.
Anycast cannot be used, if the IPv6 address is on an ISATAP interface.
NOTE
• IPv6 Address—In Layer 2, the device supports a single IPv6 interface. In
addition to the default link local and Multicast addresses, the device also
automatically adds global addresses to the interface based on the router
advertisements it receives. The device supports a maximum of 128
addresses at the interface. Each address must be a valid IPv6 address that
is specified in hexadecimal format by using 16-bit values separated by
colons.
The following types of addresses can be added to various types of tunnels:
- To manual tunnels—Global or Anycast address
- To ISATAP tunnels—Global address with EUI-6
- 6to4 tunnels—None
• Prefix Length—The length of the Global IPv6 prefix is a value from 0-128
indicating the number of the high-order contiguous bits of the address
comprise the prefix (the network portion of the address).
• EUI-64—Select to use the EUI-64 parameter to identify the interface ID
portion of the Global IPv6 address by using the EUI-64 format based on a
device MAC address.
Click Apply. The Running Configuration file is updated.
IPv6 Router Configuration
The following sections describe how to configure IPv6 routers.
Router Advertisement
IPv6 routers are able to advertise their prefixes to neighboring devices. This
feature can be enabled or suppressed per interface, as follows:
IPv6 Management and Interfaces
Cisco 500 Series Managed Switch Administration Guide
IP Configuration