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建立如下图所示的机架模型，我这里用到的是GNS3模拟器！以后我也将利用这款模拟器来完成我们的学习教程！
第一步：基本IP通讯配置！
R1>en -------------进入特权模式
R1#conf t ---------------进入全局模式
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int s0/0 -----------------------进入接口
R1(config-if)#no sh -----------------------激活接口
R1(config-if)#ip add 192.168.12.1 255.255.255.0 ---------------------配置IP
R1(config-if)#clock rate 64000 -----------------------配置时钟
R1(config-if)#exit
R1(config)#int s0/1
R1(config-if)#no sh
R1(config-if)#ip add 192.168.13.1 255.255.255.0
R1(config-if)#clock rate 64000
R1(config-if)#end
R1# ----------------
R2>en
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int s0/0
R2(config-if)#no sh
R2(config-if)#ip add 192.168.12.2 255.255.255.0
R2(config-if)#exit
R2(config)#end
R2#
R3>en
R3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#int s0/1
R3(config-if)#no sh
R3(config-if)#ip add 192.168.13.3 255.255.255.0
R3(config-if)#end
R3#
第二步：ping测试！
R3#ping 192.168.12.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.12.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R3#
-----------
R2#ping 192.168.13.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.13.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R2#
从上面可以看出，R2路由器 与 R3路由器互相ping测试未能ping通！出现“！”才算ping通！
第三步：查看路由表！
R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.12.0/24 is directly connected, Serial0/0
C 192.168.13.0/24 is directly connected, Serial0/1 --------两条直连路由
R1#
R2#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.12.0/24 is directly connected, Serial0/0
R2#
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.13.0/24 is directly connected, Serial0/1
R3#
第四步：配置静态路由！
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#ip route 192.168.13.0 255.255.255.0 192.168.12.1
R2(config)#end
----------------------
R3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#ip route 192.168.12.0 255.255.255.0 192.168.13.1
R3(config)#end
R3#
第五步：查看路由表！
R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.12.0/24 is directly connected, Serial0/0
C 192.168.13.0/24 is directly connected, Serial0/1
R1#
R2#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.12.0/24 is directly connected, Serial0/0
S 192.168.13.0/24 [1/0] via 192.168.12.1 ---------------配置的静态路由
R2#
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
S 192.168.12.0/24 [1/0] via 192.168.13.1
C 192.168.13.0/24 is directly connected, Serial0/1
R3#
第六步：再次ping测试！
R3#ping 192.168.12.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.12.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/33/68 ms
R3#
R2#ping 192.168.13.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.13.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/43/80 ms
R2#
此教程到这里就结束了！如有什么问题请留言！我会尽快回复大家的！谢谢…… | 
