Cisco Systems Configuring IPv6 Neighbor Discovery

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Cisco ASA 5500 Series Configuration Guide using ASDM
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Configuring IPv6 Neighbor Discovery
This chapter describes how to enable and configure IPv6 neighbor discovery on the ASA and includes
the following sections:
•Information About IPv6 Neighbor Discovery, page31-1
•Licensing Requirements for IPv6 Neighbor Discovery, page31-4
•Guidelines and Limitations, page31-4
•Default Settings for IPv6 Neighbor Discovery, page31-6
•Configuring the Neighbor Solicitation Message Interval, page31-6
•Configuring the Neighbor Reachable Time, page31-7
•Configuring the Router Advertisement Transmission Interval, page31-7
•Configuring the Router Lifetime Value, page31-8
•Configuring DAD Settings, page31-8
•Configuring IPv6 Addresses on an Interface, page31-9
•Suppressing Router Advertisement Messages, page31-10
•Configuring the IPv6 Prefix, page31-10
•Adding an IPv6 Static Neighbor, page31-11
•Editing Static Neighbors, page31-11
•Deleting Static Neighbors, page31-12
•Viewing and Clearing Dynamically Discovered Neighbors, page31-12
•Additional References, page31-13
•Feature History for IPv6 Neighbor Discovery, page31-13
Information About IPv6 Neighbor Discovery
The IPv6 neighbor discovery process uses ICMPv6 messages and solicited-node multicast addresses to
determine the link-layer address of a neighbor on the same network (local link), verify the readability of
a neighbor, and keep track of neighboring routers.
Nodes (hosts) use neighbor discovery to determine the link-layer addresses for neighbors known to
reside on attached links and to quickly purge cashed values that become invalid. Hosts also use neighbor
discovery to find neighboring routers that are willing to forward packets on their behalf. In addition,