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Cisco Catalyst Switch Module 3110 and 3012 for IBM BladeCenter Software Configuration Guide
OL-12189-01
Chapter 39 Configuring IPv6 Host Functions and Unicast Routing
Configuring IPv6
Switch(config-if)# ipv6 address 2001:0DB8:c18:1::/64 eui 64
Switch(config-if)# end
Switch# show ipv6 interface gigabitethernet1/0/1
GigabitEthernet1/0/1 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::20B:46FF:FE2F:D940
Global unicast address(es):
2001:0DB8:c18:1:20B:46FF:FE2F:D940, subnet is 2001:0DB8:c18:1::/64 [EUI]
Joined group address(es):
FF02::1
FF02::2
FF02::1:FF2F:D940
MTU is 1500 bytes
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND advertised reachable time is 0 milliseconds
ND advertised retransmit interval is 0 milliseconds
ND router advertisements are sent every 200 seconds
ND router advertisements live for 1800 seconds
Hosts use stateless autoconfig for addresses.
Configuring IPv4 and IPv6 Protocol Stacks and Enabling IPv6 Routing
This section applies only to the Catalyst Switch Module 3110.
When you configure an interface with both an IPv4 and IPv6 address, the interface forwards both IPv4
and IPv6 traffic and can send and receive data on both IPv4 and IPv6 networks.
Note 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} 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.
