配置RouterA: [RouterA]interface ethernet 2/0 [RouterA-Ethernet2/0]ip address 192.1.1.1 255.255.255.0 [RouterA-Ethernet2/0]quit [RouterA]router id 1.1.1.1 [RouterA]ospf [RouterA-ospf-1]area 0 [RouterA-ospf-1-area-0.0.0.0]network 192.1.1.0 0.0.0.255 # 配置RouterB: [RouterB]interface ethernet 2/0 [RouterB-Ethernet2/0]ip address 192.1.1.2 255.255.255.0 [RouterB-Ethernet2/0]interface ethernet 1/0 [RouterB-Ethernet1/0]ip address 193.1.1.2 255.255.255.0 [RouterB-Ethernet1/0]quit [RouterB]router id 2.2.2.2 [RouterB]ospf [RouterB-ospf-1]area 0 [RouterB-ospf-1-area-0.0.0.0]network 192.1.1.0 0.0.0.255 [RouterB-ospf-1-area-0.0.0.0]quit [RouterB-ospf-1]area 1 [RouterB-ospf-1-area-0.0.0.1]network 193.1.1.0 0.0.0.255 [RouterB-ospf-1-area-0.0.0.1]vlink-peer 3.3.3.3 # 配置RouterC: [RouterC]interface ethernet 2/0 [RouterC-Ethernet2/0]ip address 152.1.1.1 255.255.255.0 [RouterC-Ethernet2/0]interface ethernet 1/0 [RouterC-Ethernet1/0]ip address 193.1.1.1 255.255.255.0 [RouterC-Ethernet1/0]quit [RouterC]router id 3.3.3.3 [RouterC]ospf [RouterC-ospf-1]area 1: [RouterC-ospf-1-area-0.0.0.1]network 193.1.1.0 0.0.0.255 [RouterC-ospf-1-area-0.0.0.1]vlink-peer 2.2.2.2 [RouterC-ospf-1-area-0.0.0.1]quit [RouterC-ospf-1]area 2 [RouterC-ospf-1-area-0.0.0.2]network 152.1.1.0 0.0.0.255 关于以上组网和配置、下列说法正确的是()