一.實驗環境
- GNS3模拟器（CRT終端）
- 兩台VPCs（winpcap）
- 三台C3725路由器
二.實驗原理和目的
- 原理：動态路由就是使用某種路由協定（如RIP，OSPF，BGP等），使路由器之間能夠互相學習路由表。由此減少了任務管理，但是路由器互相發送路由表廣播時，也占用了帶寬。
- 目的：本實驗使用RIP協定，使連接配接在不同路由器上的PC能互相通信。
- RIP路由協定具體資訊
三.網絡拓撲圖
四.實驗步驟
-
配置R2
- 配置R2的接口位址
R2#conf t
R2(config)#int f0/0
R2(config-if)#ip add 192.168.10.1 255.255.255.0
R2(config-if)#no shut
R2(config-if)#int f0/1
R2(config-if)#ip add 192.168.20.1 255.255.255.0
R2(config-if)#no shut
- 給R2配置RIP協定，開啟RIP協定
R2(config)#router rip
- 開啟RIP路由協定中的V-2，并且關閉路由彙總功能，使路由支援不連續子網
R2(config-router)#version 2
R2(config-router)#no auto-summary
- 宣告直連網段的網絡号
R2(config-router)#network 192.168.10.0
R2(config-router)#network 192.168.20.0
- 檢視路由表
R2(config)#do show 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
R 192.168.30.0/24 [120/1] via 192.168.20.2, 00:00:10, FastEthernet0/1
C 192.168.10.0/24 is directly connected, FastEthernet0/0
R 192.168.40.0/24 [120/2] via 192.168.20.2, 00:00:10, FastEthernet0/1
C 192.168.20.0/24 is directly connected, FastEthernet0/1
-
配置R1
- 配置R1接口的IP位址
R1#conf t
R1(config)#int f0/0
R1(config-if)#ip add 192.168.20.2 255.255.255.0
R1(config-if)#no shut
R1(config-if)#int f0/1
R1(config-if)#ip add 192.168.30.1 255.255.255.0
R1(config-if)#no shut
- 配置RIP路由協定
R1(config)#router rip
R1(config-router)#version 2
R1(config-router)#no auto-summary
R1(config-router)#network 192.168.20.0
R1(config-router)#network 192.168.30.0
- 檢視路由表
R1#show 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 192.168.30.0/24 is directly connected, FastEthernet0/1
R 192.168.10.0/24 [120/1] via 192.168.20.1, 00:00:01, FastEthernet0/0
R 192.168.40.0/24 [120/1] via 192.168.30.2, 00:00:24, FastEthernet0/1
C 192.168.20.0/24 is directly connected, FastEthernet0/0
-
配置R3
- 配置R3的接口IP位址
R3#conf t
R3(config)#int f0/0
R3(config-if)#ip add 192.168.30.2 255.255.255.0
R3(config-if)#no shut
R3(config-if)#int f0/1
R3(config-if)#ip add 192.168.40.1 255.255.255.0
R3(config-if)#no shut
- 配置RIP路由協定
R3(config)#router rip
R3(config-router)#version 2
R3(config-router)#no auto-summary
R3(config-router)#network 192.168.30.0
R3(config-router)#network 192.168.40.0
- 檢視路由表
R3#show 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 192.168.30.0/24 is directly connected, FastEthernet0/0
R 192.168.10.0/24 [120/2] via 192.168.30.1, 00:00:06, FastEthernet0/0
C 192.168.40.0/24 is directly connected, FastEthernet0/1
R 192.168.20.0/24 [120/1] via 192.168.30.1, 00:00:06, FastEthernet0/0
-
依據拓撲圖給PC1，PC2配置IP位址和網關
PC1> ip 192.168.10.10 192.168.10.1
Checking for duplicate address...
PC1 : 192.168.10.10 255.255.255.0 gateway 192.168.10.1
PC2> ip 192.168.40.40 192.168.40.1
Checking for duplicate address...
PC1 : 192.168.40.40 255.255.255.0 gateway 192.168.40.1
五.實驗結果
- PC1，PC2互ping的結果
由此可見，RIP路由協定生效了