第三次作业

先划分网段及ip

[r1]interface l    
[r1]interface LoopBack 0
[r1-LoopBack0]
[r1-LoopBack0]ip add    
[r1-LoopBack0]ip address 192.168.1.1 25
[r1-LoopBack0]
[r1-LoopBack0]qu    
[r1-LoopBack0]quit 
[r1]
[r1]int    
[r1]interface l    
[r1]interface LoopBack 1
[r1-LoopBack1]
[r1-LoopBack1]ip add    
[r1-LoopBack1]ip address 192.168.1.129 25

以此类推

直连可达

[r1]ip route-static 0.0.0.0 0 1.0.0.255
[r1]ip route-static 0.0.0.0 0 2.0.0.255

[r2]ip route-static 0.0.0.0 0 3.0.0.255

[r3]ip route-static 0.0.0.0 0 4.0.0.255

[r4]ip route-static 0.0.0.0 0 5.0.0.255