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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-12247-04
Chapter 39 Configuring IPv6 Unicast Routing
Configuring IPv6
Use the
no ipv6 nd router-preference
interface configuration command to disable an IPv6 DRP.
This example shows how to configure a DRP of
high
for the router on an interface.
Switch#
configure terminal
Switch(config)#
interface gigabitethernet1/0/1
Switch(config-if)#
ipv6 nd router-preference high
Switch(config-if)#
end
For more information about configuring DRP for IPv6, see the “Implementing IPv6 Addresses and Basic
Connectivity” chapter in the
Cisco IOS IPv6 Configuration Library
on Cisco.com.
Configuring IPv4 and IPv6 Protocol Stacks
Before configuring IPv6 routing, you must select an SDM template that supports IPv4 and IPv6. If not
already configured, use the
sdm prefer
dual-ipv4-and-ipv6
{
default
|
routing
|
vlan
} [
desktop
] global
configuration command to configure a template that supports IPv6. When you select a new template, you
must reload the switch by using the
reload
privileged EXEC command so that the template takes effect.
Beginning in privileged EXEC mode, follow these steps to configure a Layer 3 interface to support both
IPv4 and IPv6 and to enable IPv6 routing.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
ip routing
Enable routing on the switch.
Step 3
ipv6 unicast-routing
Enable forwarding of IPv6 data packets on the switch.
Step 4
interface
interface-id
Enter interface configuration mode, and specify the Layer 3
interface to configure.
Step 5
no switchport
Remove the interface from Layer 2 configuration mode (if it is a
physical interface).
Step 6
ip address
ip-address mask
[
secondary
]
Specify a primary or secondary IPv4 address for the interface.
Step 7
ipv6 address
ipv6-prefix/prefix
length
eui-64
or
ipv6 address
ipv6-address
link-local
or
ipv6 enable
Specify a global IPv6 address. Specify only the network prefix;
the last 64 bits are automatically computed from the switch
MAC address.
Specify a link-local address on the interface to be used instead
of the automatically configured link-local address when IPv6 is
enabled 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.
Step 8
end
Return to privileged EXEC mode.
Step 9
show interface
interface-id
show ip interface
interface-id
show ipv6 interface
interface-id
Verify your entries.
Step 10
copy running-config startup-config
(Optional) Save your entries in the configuration file.
