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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 32 IPv6 Support on the Cisco ASR 901 Router
How to Configure IPv6 Support on the Cisco ASR 901 Router
SUMMARY STEPS
1. enable
2. configure terminal
3. interface type number
4. ipv6 address ipv6-address/prefix-length {eui-64 | link-local | anycast}
5. ipv6 enable
6. exit
7. ipv6 unicast-routing
8. ipv6 cef
DETAILED STEPS
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
interface
type number
Example:
Router(config)# interface vlan 40
Specifies an interface type and number and enters interface
configuration mode.
Step 4
ipv6 address
ipv6-address
/
prefix-length
{eui-64
| link-local | anycast}
Example:
Router(config-if)# ipv6 address
2001:DB8:FFFF::2/64
Configures an IPv6 address based on an IPv6 general prefix
and enables IPv6 processing on an interface.
• eui-64—Specifies the global IPv6 addresses with an
interface identifier (ID) in the low-order 64 bits of the
IPv6 address. Only the 64-bit network prefix for the
address needs to be specified; the last 64 bits are
automatically computed from the interface ID.
• link-local—Specifies the link-local address on the
interface that is used instead of the link-local address
that is automatically configured when IPv6 is enabled
on the interface.
• anycast—Specifies an IPv6 anycast address.
Step 5
ipv6 enable
Example:
Router(config-if)# ipv6 enable
Enables IPv6 on the interface.