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.
If a host is connected to multiple routers, the host must select a router to forward packets based on the destination addresses of packets. The router can advertise the default router priority and specified route information to the host so that the host can select a proper forwarding router based on the destination addresses of packets.
After receiving the RA packets carrying the route information, the host updates its routing table. When sending packets to another device, the host queries the routing table and selects a proper route to send packets.
When receiving the RA packets that carry the priority of default routers, the host updates its default router table. When sending packets to another device, if there is no route to be selected, the host queries the default router table. Then, the host selects a router with the highest priority on the local link to send packets. If the router is faulty, the host selects another router in descending order of priority.
The system view is displayed.
The interface view is displayed.
The IPv6 function is enabled.
The default router priority is configured in RA packets.
Route information is configured in RA packets.