Configuring IPv6
Configuring IPSec on OSPFv3
To enable authentication and encryption, configure the IP Security (IPsec) secure socket application
Note
program interface (API) on OSPFv3.
For information about configuring IPSec, see the following sections of the Cisco IOS IPv6 Configuration
Library on Cisco.com:
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Configuring EIGRP for IPv6
By default, EIGRP for IPv6 is disabled. You can configure EIGRP for IPv6 on an interface. After
configuring the router and the interface for EIGRP, enter the no shutdown privileged EXEC command
to start EIGRP.
Note
If EIGRP for IPv6 is not in shutdown mode, EIGRP might start running before you enter the EIRGP
router-mode commands to configure the router and the interface.
To set an explicit router ID, use the show ipv6 eigrp command to see the configured router IDs, and then
use the router-id command.
As with EIGRP IPv4, you can use EIGRPv6 to specify your EIGRP IPv4 interfaces and to select a subset
of those as passive interfaces. Use the passive-interface default command to make all interfaces
passive, and then use the no passive-interface command on selected interfaces to make them active.
EIGRP IPv6 does not need to be configured on a passive interface.
For more configuration procedures, see the "Implementing EIGRP for IPv6" chapter in the Cisco IOS
IPv6 Configuration Library on Cisco.com.
Configuring HSRP for IPv6
Hot Standby Router Protocol (HSRP) for IPv6 provides routing redundancy for routing IPv6 traffic not
dependent on the availability of any single router.
When HSRP for IPv6 is enabled on a switch, IPv6 hosts learn of available IPv6 routers through IPv6
neighbor discovery router advertisement messages. An HSRP IPv6 group has a virtual MAC address that
is derived from the HSRP group number. The group has a virtual IPv6 link-local address that is, by
default, derived from the HSRP virtual MAC address. Periodic messages are sent for the HSRP virtual
IPv6 link-local address when the HSRP group is active.
When configuring HSRP for IPv6, you must enable HSRP version 2 (HSRPv2) on the interface.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
1-36
Defining Authentication on an Interface
Defining Encryption on an Interface
Defining Authentication in an OSPFv3 Area
Defining Encryption in an OSPFv3 Area
Defining Authentication and Encryption for a Virtual Link in an OSPFv3 Area
Verifying OSPFv3 Configuration and Operation
Chapter 1
Configuring IPv6 Unicast Routing
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