Cisco IE-3000-8TC Software Configuration Manual page 737

Chapter 37 Configuring IPv6 Host Functions
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:
•
•
•
For more information about configuring IPv6, see the "Implementing Addressing and Basic
Connectivity for IPv6" chapter in the Cisco IOS IPv6 Configuration Library on Cisco.com.
Beginning in privileged EXEC mode, follow these steps to assign an IPv6 address to a Layer 3 interface
and enable IPv6forwarding:
Command
Step 1
configure terminal
Step 2 sdm prefer dual-ipv4-and-ipv6 default}
Step 3 end
Step 4
reload
Step 5
configure terminal
Step 6 interface interface-id
Step 7 ipv6 address ipv6-prefix/prefix length eui-64
or
ipv6 address ipv6-address link-local
or
ipv6 enable
Step 8
exit
Step 9 end
Step 10 show ipv6 interface interface-id
Step 11 copy running-config startup-config
To remove an IPv6 address from an interface, use the no ipv6 address ipv6-prefix/prefix length eui-64
or no ipv6 address 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, use the no ipv6 enable interface configuration command. To globally disable IPv6
routing, use the no ipv6 unicast-routing global configuration command.
OL-13018-03
solicited-node 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.)
all-nodes link-local multicast group FF02::1
all-routers link-local multicast group FF02::2
Purpose
Enter global configuration mode.
Select the SDM template that supports IPv4 and IPv6.
•
Return to privileged EXEC mode.
Reload the operating system.
Enter global configuration mode after the switch reloads.
Enter interface configuration mode, and specify the interface to
configure.
Specify a global IPv6 address with an extended unique identifier
(EUI) in the low-order 64 bits of the IPv6 address. Specify only
the network prefix; the last 64 bits are automatically computed
from the switch MAC address. This enables IPv6 processing on
the interface.
Specify a link-local address on the interface to be used instead
of the link-local address that is automatically configured when
IPv6 is enabled on the interface. This command enables IPv6
processing on the interface.
Automatically configure an IPv6 link-local address on the
interface, and enable the interface for IPv6 processing. The
link-local address can only be used to communicate with nodes
on the same link.
Return to global configuration mode.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Cisco IE 3000 Switch Software Configuration Guide
Configuring IPv6
37-7