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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
Configuring IPv6 and IPv4 Dual-Stack on the Same VLAN
Prerequisites
You should enable IPv6 routing before proceeding with this task. See “Configuring IPv6 Addressing and
Enabling IPv6 Routing” section on page 8.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface type number
4. ip address ip-address mask
5. ipv6 address {ipv6-address/prefix-length | prefix-name sub-bits/prefix-length}
6. ipv6 enable
Step 4
ipv6 nd {advertisement-interval | autoconfig |
cache | dad | managed-config-flag | na |
ns-interval | nud | other-config-flag | prefix
| ra | reachable-time | router-preference}
Example:
Router(config-if)# ipv6 nd autoconfig
Configures a Neighbor Discovery on a specified interface
on the router.
• advertisement-interval—Sends an advertisement
interval option in router advertisements (RAs).
• autoconfig—Automatic configuration.
• cache—Cache entry.
• dad—Duplicate Address Detection.
• managed-config-flag—Hosts should use DHCP for
address config.
• na—Neighbor advertisement control. Configures ND
to extract an entry from an unsolicited NA.
• ns-interval— Sets the advertised NS retransmission
interval.
• nud —Configures the number of times neighbor
unreachability detection (NUD) resends neighbor
solicitations (NSs).
• other-config-flag—Hosts should use DHCP for
non-address config.
• prefix—Configures which IPv6 prefixes are included
in IPv6 ND router advertisements.
• ra—Router advertisement control.
• reachable-time—Sets the advertised reachability time.
• router-preference—Sets the default router preference
value.
Command or Action Purpose