Configuring RA

A device periodically sends Router Advertisement (RA) messages that carry prefixes and flag bits, or responds to the router request messages with RA messages.

Usage Scenario

RA messages contain parameters of the hosts on the local link.

Pre-configuration Tasks

Before configuring RA, complete the following tasks:

Connect interfaces and configure physical parameters for the interfaces to ensure that the physical status of the interfaces is Up.
Configure link layer protocol parameters for the interfaces to ensure that the link layer protocol status of the interfaces is Up.
Configure IPv6 addresses for interfaces.

Enabling RA Message Sending: A routing device periodically sends RA messages carrying network prefixes and flags, or responds to RS messages with RA messages.

Configuring Parameters Carried in RA Messages: An RA message carries the hop limit, prefix option, neighbor reachable time, and lifetime.

(Optional) Setting the RA Message Advertisement Interval: You can set a smaller RA message advertisement interval to speed up the RA process.

(Optional) Configuring the Default Router Priority and Route Information: Router Advertisement (RA) packets that carry the default router priority and route information can be transmitted over the local link. In this manner, a proper router can be selected to forward packets of a host.

Verifying the Configuration of RA: After configuring RA, verify the configuration.