Configuration example

As shown in Figure 73, the default gateway of the host is the IP address 1.1.1.2/24 of the interface GigabitEthernet 1/0/1 of Router A. Configure a static route destined for the host on Router B. Router B can receive directed broadcasts from the host to IP address 2.2.2.255.

1. Configure Router A:

   # Specify IP addresses for GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.

   <RouterA> system-view
   [RouterA] interface gigabitethernet 1/0/1
   [RouterA-GigabitEthernet1/0/1] ip address 1.1.1.2 24
   [RouterA-GigabitEthernet1/0/1] quit
   [RouterA] interface gigabitethernet 1/0/2
   [RouterA-GigabitEthernet1/0/2] ip address 2.2.2.2 24
   

   # Enable GigabitEthernet 1/0/2 to forward directed broadcasts destined for the directly connected network.

   [RouterA-GigabitEthernet1/0/2] ip forward-broadcast
   

2. Configure Router B:

   # Configure a static route to the host.

   <RouterB> system-view
   [RouterB] ip route-static 1.1.1.1 24 2.2.2.2
   

   # Specify an IP address for GigabitEthernet 1/0/2.

   [RouterB] interface gigabitethernet 1/0/2
   [RouterB-GigabitEthernet1/0/2] ip address 2.2.2.1 24
   

   # Enable GigabitEthernet 1/0/2 to receive directed broadcasts destined for the directly connected network.

   [RouterB-GigabitEthernet1/0/2] ip forward-broadcast 
   

After the configurations are completed, if you ping the subnet-directed broadcast address 2.2.2.255 on the host, the interface GigabitEthernet 1/0/2 of Router B can receive the ping packets. If you delete the ip forward-broadcast configuration on any router, the interface GigabitEthernet 1/0/2 of Router B cannot receive the ping packets.