describes how to assign IPv6 addresses to individual Layer 3 interfaces and to
globally forward IPv6 traffic on the switch.
IPv6 on the switch, consider these guidelines:
Not all features
discussed in this chapter are supported by the switch. See the
Unsupported IPv6 Unicast Routing Features.
interface configuration command, you must enter the
variables with the address specified in hexadecimal using 16-bit values between
variable (preceded by a slash [/]) is a decimal value that shows how many of
the high-order contiguous bits of the address comprise the prefix (the network
portion of the address).
To forward IPv6
traffic on an interface, you must configure a global IPv6 address on that
interface. Configuring an IPv6 address on an interface automatically configures
a link-local address and activates IPv6 for the interface. The configured
interface automatically joins these required multicast groups for that link:
multicast group FF02:0:0:0:0:1:ff00::/104 for each unicast address assigned to
the interface (this address is used in the neighbor discovery process.)
link-local multicast group FF02::1
link-local multicast group FF02::2
To remove an IPv6 address from an interface, use the
no ipv6 address
link-local interface configuration command. To
remove all manually configured IPv6 addresses from an interface, use the
no ipv6 address
interface configuration command without arguments. To disable IPv6 processing
on an interface that has not been explicitly configured with an IPv6 address,
no ipv6 enable
interface configuration command. To globally disable IPv6 routing, use the
unicast-routing global configuration command.
For more information
about configuring IPv6 routing, see the “Implementing Addressing and Basic
Connectivity for IPv6” chapter in the
Cisco IOS IPv6
Configuration Library on Cisco.com.
privileged EXEC mode, follow these steps to assign an IPv6 address to a Layer 3
interface and enable IPv6 routing: