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show ipv6 router-advertisement



Display information about IPv6 router advertisements, including statistics about messages sent and received on interfaces, and information received from advertisements from other routers.



Display all IPv6 router advertisement information for all interfaces.


(Optional) Display only the IPv6 router advertisement information that is conflicting.

interface interface

(Optional) Display IPv6 router advertisement information for the specified interface.

logical-system (all | logical-system-name)

(Optional) Perform this operation on all logical systems or on a particular logical system.

prefix prefix/prefix length

(Optional) Display IPv6 router advertisement information for the specified prefix.

Additional Information

The display identifies conflicting information by enclosing the value the router is advertising in brackets.

Required Privilege Level


Output Fields

Table 1 describes the output fields for the show ipv6 router-advertisement command. Output fields are listed in the approximate order in which they appear.

Table 1: show ipv6 router-advertisement Output Fields

Field Name

Field Description


Name of the interface.

Advertisements sent

Number of router advertisements sent and the elapsed time since they were sent.

Solicits received

Number of solicitation messages received.

Advertisements received

Number of router advertisements received.

Advertisements from

Names of interfaces from which router advertisements have been received and the elapsed time since the last one was received.


Managed address configuration flag: 0 (stateless) or 1 (stateful).

Other configuration

Other stateful configuration flag: 0 (stateless) or 1 (stateful).

Reachable time

Time that a node identifies a neighbor as reachable after receiving a reachability confirmation, in milliseconds.

Default lifetime

Default lifetime, in seconds: from 0 seconds to 18.2 hours. A setting of 0 indicates that the router is not a default router.

Retransmit timer

Time between retransmitted Neighbor Solicitation messages, in milliseconds.

Current hop limit

Configured current hop limit.


Name and length of the prefix.

Valid lifetime

How long the prefix remains valid for onlink determination.

Preferred lifetime

How long the prefix generated by stateless autoconfiguration remains preferred.

On link

Onlink flag: 0 (not onlink) or 1 (onlink).


Autonomous address configuration flag: 0 (not autonomous) or 1  (autonomous).

Sample Output

show ipv6 router-advertisement

show ipv6 router-advertisement conflicts

show ipv6 router-advertisement prefix

Release Information

Command introduced before Junos OS Release 7.4.