ipv6 nd ra-lifetime (BNG)
To configure the router lifetime value in IPv6 router advertisements on an interface, use the ipv6 nd ra-lifetime
command in an appropriate configuration mode. To restore the default lifetime, use the no form of this
command.
ipv6 nd ra-lifetime seconds
no ipv6 nd ra-lifetime
Syntax Description
The validity (in seconds) of this router as a default router on this interface.
seconds
Command Default
seconds : 1800 seconds
Command Modes
Interface configuration (not applicable for BNG)
Dynamic template configuration (for BNG)
Command History
ModificationRelease
This command was introduced.Release 3.7.2
This command was supported in the dynamic template configuration
mode for BNG.
Release 4.3.0
Usage Guidelines
The router lifetime value is included in all IPv6 router advertisements sent out the interface. The value indicates
the usefulness of the router as a default router on this interface. Setting the value to 0 indicates that the router
should not be considered a default router on this interface. The router lifetime value can be set to a nonzero
value to indicate that it should be considered a default router on this interface. The nonzero value for the router
lifetime value should not be less than the router advertisement interval.
For BNG, ensure you run this command in the dynamic template configuration mode. To enter the dynamic
template configuration mode, run dynamic-template command in the Global Configuration mode.
Task ID
OperationsTask ID
read, writeipv6
read, writenetwork
read, writeconfig-services
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Command Reference, Release
5.2.x
369
Neighbor Discovery Commands
ipv6 nd ra-lifetime (BNG)
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