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Router Advertisement Reachable Time: Shows the amount of time, in milliseconds, to consider a
neighbor reachable after neighbor discovery confirmation.
Router Advertisement Interval: Shows the frequency, in seconds, that router advertisements are
sent.
Router Advertisement Managed Config Flag: Shows whether the managed configuration flag is
set (enabled) for router advertisements on this interface.
Router Advertisement Other Config Flag: Shows whether the other configuration flag is set
(enabled) for router advertisements on this interface.
Router Advertisement Suppress Flag: Shows whether router advertisements are suppressed
(enabled) or sent (disabled).
IPv6 Destination Unreachables: Shows whether ICMPv6 Destination Unreachable messages may
be sent (enabled) or not (disabled).
If an IPv6 prefix is configured on the interface, the following information also appears.
IPv6 Prefix: Shows the IPv6 prefix for the specified interface.
Preferred Lifetime: Shows the amount of time the advertised prefix is a preferred prefix.
Valid Lifetime: Shows the amount of time the advertised prefix is valid.
Onlink Flag: Shows whether the onlink flag is set (enabled) in the prefix.
Autonomous Flag: Shows whether the autonomous address-configuration flag (autoconfig) is set
(enabled) in the prefix.
10.3.1.3 show ipv6 interface neighbors
This command displays information about the IPv6 neighbors.
Syntax
show ipv6 interface neighbors
Default Setting
None
Command Mode
Privileged Exec
Display Message
Count of Learned Neighbors the number of neighbor mac address be learned.
Interface: Shows the interface in slot/port format.
IPv6 Address: IPV6 address of neighbor or interface.
MAC Address: Link-layer Address.
IsRtr: Shows whether the neighbor is a router. If the value is TRUE, the neighbor is known to be a
router, and FALSE otherwise. A value of FALSE might not mean Note that routers are not always
known to be routers.