CLI Guide

Version Description
8.3.11.1 Introduced on the Z9000.
8.3.7.1 Introduced on the S4810.
Usage Information
Neighbor Discovery Protocol for IPv6 is defined in RFC 2461 as part of the Stateless
Address Autoconfiguration protocol. It replaces the Address Resolution Protocol
used with IPv4. It defines mechanisms for solving problems, such as:
• Router discovery: Hosts can locate routers residing on a link.
• Prefix discovery: Hosts can discover address prefixes for the link.
• Parameter discovery .
• Address autoconfiguration — configuration of addresses for an interface .
• Address resolution — mapping from IP address to link-layer address.
• Next-hop determination.
• Neighbor Unreachability Detection (NUD): Determine that a neighbor is no
longer reachable on the link.
• Duplicate Address Detection (DAD): Allow a node to check whether a proposed
address is already in use.
• Redirect: The router can inform a node about a better first-hop.
Use the ipv6 neighbor command to manually configure the IPv6 address of a
neighbor to be discovered by the switch.
show ipv6 neighbors
Display IPv6 discovery information. Entering the command without options shows all IPv6 neighbor
addresses stored on the control processor (CP).
Syntax
show ipv6 neighbors [vrf vrf-name] [ipv6-address| interface interface]
Parameters
vrf vrf-name (OPTIONAL) Enter the keyword vrf and the name of the VRF to
display the neighbors corresponding to that VRF.
NOTE: If you do not specify this option, neighbors
corresponding to the default VRF are displayed.
ipv6-address Enter the IPv6 address of the neighbor in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of
zero.
interface interface Enter the keyword interface then the interface type and slot/port
or number information:
Neighbor Discovery Protocol (NDP)
1153