Cisco Systems A9014CFD manual 32-20

Chapter 32 IPv6 Support on the Cisco ASR 901 Router

How to Configure IPv6 Support on the Cisco ASR 901 Router

DETAILED STEPS

	Command or Action	Purpose
Step 1
	enable	Enables privileged EXEC mode.
		• Enter your password if prompted.
	Example:
	Router> enable
Step 2
	configure terminal	Enters global configuration mode.
	Example:
	Router# configure terminal
Step 3
	router isis area-tag	Enables IS-IS for the specified IS-IS routing process, and
		enters router configuration mode.
	Example:	• area-tag—Name for a routing process.
	Router(config)# router isis area2
Step 4
	net network-entity-title	Configures an IS-IS network entity title (NET) for the
		routing process.
	Example:	• network-entity-title—The network-entity-title
	Router(config-router)# net	argument defines the area addresses for the IS-IS area
	49.0001.0000.0000.000c.00	and the system ID of the router.
Step 5
	exit	Exits router configuration mode and enters global
		configuration mode.
	Example:
	Router(config-router)# exit
Step 6
	interface type number	Specifies an interface type and number, and places the
		router in interface configuration mode.
	Example:
	Router(config)# interface fastEthernet 0/0
Step 7
	ipv6 address {ipv6-address/prefix-length	Specifies the IPv6 network assigned to the interface and
	prefix-name sub-bits/prefix-length}	enables IPv6 processing on the interface.
	Example:	• ipv6-address—The IPv6 address to be used.
		• prefix-length—The length of the IPv6 prefix. A decimal
	Router(config-if)# ipv6 address 2001:DB8::3/64
		value that indicates how many of the high-order
		contiguous bits of the address comprise the prefix (the
		network portion of the address). A slash mark must
		precede the decimal value.
		• prefix-name—A general prefix, which specifies the
		leading bits of the network to be configured on the
		interface.
		• sub-bits—The subprefix bits and host bits of the address
		to be concatenated with the prefixes provided by the
		general prefix specified with the prefix-nameargument.

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
32-20	OL-23826-09