Configuring Ipv4 And Ipv6 Protocol Stacks - Cisco Catalyst 3560-X Software Configuration Manual

Chapter 1 Configuring IPv6 Unicast Routing
Beginning in privileged EXEC mode, follow these steps to configure a DRP for a router on an interface.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ipv6 nd router-preference {high |
medium | low}
Step 4 end
Step 5 show ipv6 interface
Step 6 copy running-config startup-config
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
Step 1 configure terminal
Step 2 ip routing
Step 3
ipv6 unicast-routing
Step 4
interface interface-id
Step 5 no switchport
Step 6 ip address ip-address mask [secondary]
OL-25303-03
Purpose
Enter global configuration mode.
Enter interface configuration mode, and enter the Layer 3 interface on
which you want to specify the DRP.
Specify a DRP for the router on the switch interface.
Return to privileged EXEC mode.
Verify the configuration.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Enable routing on the switch.
Enable forwarding of IPv6 data packets on the switch.
Enter interface configuration mode, and specify the Layer 3
interface to configure.
Remove the interface from Layer 2 configuration mode (if it is a
physical interface).
Specify a primary or secondary IPv4 address for the interface.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
Configuring IPv6
1-25