1.配置默认路由拓扑图 2.配置R1 [Huawei]sysname R1 [R1]ip route-static 0.0.0.0 0 192.168.2.2 [R1]int g0/0/0 [R1-GigabitEthernet0/0/0]ip address 192.168.1.254 24 [R1-GigabitEthernet0/0/0]int e0/0/0 [R1-Ethernet0/0/0]ip address 192.168.2.1 24 3.配置R2 [Huawei]sysname R2 [R2]ip route-static 192.168.1.0 24 192.168.2.1 [R2]ip route-static 192.168.4.0 24 192.168.3.2 [R2]int e0/0/0 [R2-Ethernet0/0/0]ip address 192.168.2.2 24 [R2-Ethernet0/0/0]int e0/0/1 [R2-Ethernet0/0/1]ip address 192.168.3.1 24 4.配置R3 [Huawei]sysname R3 [R3]ip route-static 0.0.0.0 0 192.168.3.1 [R3]int g0/0/0 [R3-GigabitEthernet0/0/0]ip address 192.168.4.254 24 [R3-GigabitEthernet0/0/0]int e 0/0/0 [R3-Ethernet0/0/0]ip address 192.168.3.2 24