你好、我也是用思科命令,
你把IP地址都配好,注意在配R2 S0/0端口的时候,不要忘记配置时钟频率、端口都开启,然后配路由
R1
R1(config)#ip route 29.12.12.0 255.255.255.0 f0/1
R1(config)#ip route 29.13.13.0 255.255.255.0 f0/1
R1(config)#ip route 29.168.20.0 255.255.255.0 f0/1
R2
R2(config)#ip route 29.13.13.0 255.255.255.0 s0/0
R2(config)#ip route 29.168.20.0 255.255.255.0 s0/0
R2(config)#ip route 29.168.10.0 255.255.255.0 f0/0
R3
R3(config)#ip route 29.11.11.0 255.255.255.0 s0/0
R3(config)#ip route 29.168.10.0 255.255.255.0 s0/0
R3(config)#ip route 29.168.20.0 255.255.255.0 f0/0
R4
R4(config)#ip route 29.12.12.0 255.255.255.0 f0/1
R4(config)#ip route 29.11.11.0 255.255.255.0 f0/1
R4(config)#ip route 29.168.10.0 255.255.255.0 f0/1
这样就没问题了。如有不懂请追问