show ipv6 router-advertisement
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Command introduced in Junos OS Release 12.2 for the QFX Series.
Description
Display information about IPv6 router advertisements, including statistics about messages sent and received on interfaces, and information received from advertisements from other routers.
Options
none | — | Display all IPv6 router advertisement information for all interfaces. |
conflicts | — | (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
view
List of Sample Output
show ipv6 router-advertisementshow ipv6 router-advertisement conflicts
show ipv6 router-advertisement prefix
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 |
|---|---|
Interface | 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 | 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. |
Prefix | 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 | Autonomous address configuration flag: 0 (not autonomous) or 1 (autonomous). |
Sample Output
show ipv6 router-advertisement
user@host> show ipv6 router-advertisement Interface: fe-0/1/1.0
Advertisements sent: 0
Solicits received: 0
Advertisements received: 0
Interface: fxp0.0
Advertisements sent: 0
Solicits received: 0
Advertisements received: 1
Advertisement from fe80::2d0:b7ff:fe1e:7b0e, heard 00:00:13 ago
Managed: 0
Other configuration: 0 [1]
Reachable time: 0 ms
Default lifetime: 1800 sec
Retransmit timer: 0 ms
Current hop limit: 64
show ipv6 router-advertisement conflicts
user@host> show ipv6 router-advertisement conflicts Interface: fxp0.0
Advertisement from fe80::2d0:b7ff:fe1e:7b0e, heard 00:01:08 ago
Other configuration: 0 [1]
show ipv6 router-advertisement prefix
user@host> show ipv6 router-advertisement prefix
8040::/16 Interface: fe-0/1/3.0
Advertisements sent: 3, last sent 00:04:11 ago
Solicits received: 0
Advertisements received: 3
Advertisement from fe80::290:69ff:fe9a:5403, heard 00:00:05 ago
Managed: 0
Other configuration: 0
Reachable time: 0 ms
Default lifetime: 180 sec [1800 sec]
Retransmit timer: 0 ms
Current hop limit: 64
Prefix: 8040:1::/64
Valid lifetime: 2592000 sec
Preferred lifetime: 604800 sec
On link: 1
Autonomous: 1
