在路由器的配置中管理距离什么意思

管理距离
缩写：AD 管理距离是指一种路由协议的路由可信度。每一种路由协议按可靠性从高到低，依次分配一个信任等级，这个信任等级就叫管理距离。
对于两种不同的路由协议到一个目的地的路由信息，路由器首先根据管理距离决定相信哪一个协议。 AD值越低，则它的优先级越高。 一个管理距离是一个从0——255的整数值，0是最可信赖的，而255则意味着不会有业务量通过这个路由。 直连的AD=0, static 静态的AD=1,EIGRP的AD=90，IGRP的AD=100，OSPF的AD=110,RIP的AD=120.

四个路由器，每个路由器就要配三条静态路由ip，以此类推
N=路由器
n-1=每个路由器就要配n-1条静态路由ip
静态IP很好配
1 在各个接口上配置好ip ，然后到配置模式 ip route 网络地址 目的地址

例如在route10的机器上配置如下：
(这个叫网络地址)(这个叫目的地址，也叫下一跳)
Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2
Router(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.1
Router(config)#ip route 192.168.5.0 255.255.255.0 192.168.4.2
Router(config)#end
Router#write
整个拓扑配置如下
Route10上操作的
Router10>enable
Router10#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router10(config)#interface fastEthernet 0/0
Router10(config-if)#ip address 192.168.1.254 255.255.255.0
Router10(config-if)#no shutdown
Router10(config)#end
Router10#configure
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Router10(config)#interface fastEthernet 0/1
Router10(config-if)#ip address 192.168.2.1 255.255.255.0
Router10(config-if)#no shutdown
Router10(config)#end
Router10(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2
Router10(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.1
Router10(config)#ip route 192.168.5.0 255.255.255.0 192.168.4.2
Router10(config)#end
Router10#write

Route11上操作的
Router11>enable
Router11#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router11(config)#interface fastEthernet 0/0
Router11(config-if)#ip address 192.168.2.2 255.255.255.0
Router11(config-if)#no shutdown
Router11(config-if)#exit
Router11(config)#interface fastEthernet 0/1
Router11(config-if)#ip address 192.168.3.2 255.255.255.0
Router11(config-if)#no shutdown
Router11(config-if)#end
Router11#write
Building configuration...
[OK]
Router11(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
Router11(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.1
Router11(config)#ip route 192.168.5.0 255.255.255.0 192.168.4.2
Router11(config)#end
Router11#write

Route12上操作的

Router12>enable
Router12#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router12(config)#interface fastEthernet 0/0
Router12(config-if)#ip address 192.168.3.1 255.255.255.0
Router12(config-if)#no shutdown
Router12(config-if)#exit
【多个路由器配置静态路由|多个路由器配置静态路由 简单】Router12(config)#interface fastEthernet 0/1
Router12(config-if)#ip address 192.168.4.1 255.255.255.0
Router12(config-if)#no shutdown
Router12(config-if)#end
Router12#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router12(config)#
Router12(config)#ip route 192.168.5.0 255.255.255.0 192.168.4.2
Router12(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.2
Router12(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
Router12(config)#end
Router12#write


Route13上操作的


Router>enable
Router#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface fastEthernet 0/0
Router(config-if)#ip address 192.168.4.2 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#exit
Router(config)#interface fastEthernet 0/1
Router(config-if)#ip address 192.168.5.254 255.255.255.0
Router(config-if)#no shutdown
Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.4.1
Router(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.2
Router(config)#ip route 192.168.2.0 255.255.255.0 192.168.2.1
Router(config)#end出错了
Router#write
Building configuration...
[OK]
Router#configure t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#no ip route 192.168.2.0 255.255.255.0 192.168.2.1 删除路由所以才会有这条
Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
Router(config)#end
Router#write

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NSD NETWORK DAY05

1. 配置静态路由

1 配置静态路由 1.1 问题
路由器可以将不同网段之间的网络连接到一起，当路由器接收到数据包后要查看数据包中的目标IP，再检查自己的路由表，如果路由表中有和目标IP相匹配的路由条目，路由器才能将数据包按照该路由条目所指定的端口转发出去，实现不同网络之间的通信，那么路由器中的路由表是如何实现的呢？配置了路由器接口IP并为UP状态路由表中自动生成直连路由，对于非直连的路由，需通过静态路由管理员手工添加或通过配置动态路自动学习。

• 配置静态路由
• 配置浮动静态路由
• 配置缺省路由

1.2 方案
网络环境及IP地址规划，如图-1所示。

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图－１
本例中的配置练习采用思科模拟器 —— Cisco Packet Tracer 6.0，Route采用2621路由器实现。
1.3 步骤
实现此案例需要按照如下步骤进行。
步骤一：配置静态路由
1）R1上配置接口IP

1. R1(config)#interface fastEthernet 0/0
2. R1(config-if)#ip address 192.168.1.254 255.255.255.0
3. R1(config-if)#no shutdown
4. R1(config-if)#exit
5. R1(config)#interface fastEthernet 0/1
6. R1(config-if)#ip address 192.168.2.1 255.255.255.0
7. R1(config-if)#no shutdown

2)R2上配置接口IP

1. R2(config)#interface fastEthernet 0/1
2. R2(config-if)#ip address 192.168.2.2 255.255.255.0
3. R2(config-if)#no shutdown
4. R2config-if)#exit
5. R2(config)#interface fastEthernet 0/0
6. R2(config-if)#ip address 192.168.3.254 255.255.255.0
7. R2(config-if)#no shutdown

3）R1上添加静态路由

1. R1(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2

4）R1上查看路由表

1. R1#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. C 192.168.1.0/24 is directly connected, FastEthernet0/0
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. S 192.168.3.0/24 [1/0] via 192.168.2.2 //S表示静态路由

5）R2上添加静态路由

1. R2(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1

6）R2上查看路由条目

1. R2#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. S 192.168.1.0/24 [1/0] via 192.168.2.1 //S表示静态路由
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. C 192.168.3.0/24 is directly connected, FastEthernet0/0

7）配置PC1的IP地址为192.168.1.1，网关为192.168.1.254
8）配置PC2的IP地址为192.168.3.1，网关为192.168.3.254
9）测试网络连通性,PC1 ping 192.168.3.1

1. PC>ping 192.168.3.1
2. Pinging 192.168.3.1 with 32 bytes of data:
3. Reply from 192.168.3.1: bytes=32 time=1ms TTL=126
4. Reply from 192.168.3.1: bytes=32 time=11ms TTL=126
5. Reply from 192.168.3.1: bytes=32 time=10ms TTL=126
6. Reply from 192.168.3.1: bytes=32 time=11ms TTL=126
7. Ping statistics for 192.168.3.1:
8. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
9. Approximate round trip times in milli-seconds:
10. Minimum = 1ms, Maximum = 11ms, Average = 8ms

步骤二：配置浮动静态路由
1）在以上静态路由实验的基础上，先分别进入R1与R2的特权模式输入write命令保存配置信息，然后分别进入R1与R2的物理配置界面，点击开关按钮关闭路由器，添加NM-1FE-TX模块并再次点击开关按钮，如下图-2所示。
图－2

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2）添加模块后将R1的F1/0接口连接到R2的F1/0接口修改拓扑如下图-3所示：

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图－3
3）配置R1的F1/0接口IP

1. R1(config)#interface fastEthernet 1/0
2. R1(config-if)#ip address 192.168.4.1 255.255.255.0
3. R1(config-if)#no shutdown

4）配置R2的F1/0接口IP

1. R2(config)#interface fastEthernet 1/0
2. R2(config-if)#ip address 192.168.4.2 255.255.255.0
3. R2(config-if)#no shutdown

5）R1上添加静态浮动路由

1. R1(config)#ip route 192.168.3.0 255.255.255.0 192.168.4.2 50 //管理距离50

6）R2上添加静态浮动路由

1. R2(config)#ip route 192.168.1.0 255.255.255.0 192.168.4.1 50 //管理距离50

7）R1上查看路由表

1. R1#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. C 192.168.1.0/24 is directly connected, FastEthernet0/0
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. S 192.168.3.0/24 [1/0] via 192.168.2.2
13. C 192.168.4.0/24 is directly connected, FastEthernet1/0
14. R1#show ip rou
15. R1#show ip route
16. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
17. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
18. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
19. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
20. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
21. * - candidate default, U - per-user static route, o - ODR
22. P - periodic downloaded static route
23. Gateway of last resort is not set
24. C 192.168.1.0/24 is directly connected, FastEthernet0/0
25. C 192.168.2.0/24 is directly connected, FastEthernet0/1
26. S 192.168.3.0/24 [1/0] via 192.168.2.2 //只有下一跳为192.168.2.2的静态路由
27. C 192.168.4.0/24 is directly connected, FastEthernet1/0

8）禁用F/01接口

1. R1(config)#interface fastEthernet 0/1
2. R1(config-if)#shutdown

9)R1上查看路由表

1. C 192.168.1.0/24 is directly connected, FastEthernet0/0
2. S 192.168.3.0/24 [50/0] via 192.168.4.2//下一跳接口为192.168.4.2的路由生效
3. C 192.168.4.0/24 is directly connected, FastEthernet1/0

10）测试网络连通性,PC1 ping 192.168.3.1

1. PC>ping 192.168.3.1
2. Pinging 192.168.3.1 with 32 bytes of data:
3. Reply from 192.168.3.1: bytes=32 time=0ms TTL=126
4. Reply from 192.168.3.1: bytes=32 time=10ms TTL=126
5. Reply from 192.168.3.1: bytes=32 time=11ms TTL=126
6. Reply from 192.168.3.1: bytes=32 time=1ms TTL=126
7. Ping statistics for 192.168.3.1:
8. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
9. Approximate round trip times in milli-seconds:
10. Minimum = 0ms, Maximum = 11ms, Average = 5ms

步骤三：配置缺省路由
1）网络环境及IP地址规划，如图-4所示
图－4

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2)R1上配置接口IP

1. Router(config)#interface fastEthernet 0/0
2. R1(config-if)#ip address 192.168.1.254 255.255.255.0
3. R1(config-if)#no shutdown
4. R1(config-if)#exit
5. R1(config)#interface fastEthernet 0/1
6. R1(config-if)#ip address 192.168.2.1 255.255.255.0
7. R1(config-if)#no shutdown

3)R2上配置接口IP

1. R2(config)#interface f0/1
2. R2(config-if)#ip address 192.168.2.2 255.255.255.0
3. R2(config-if)#no shutdown
4. R2(config-if)#exit
5. R2(config)#interface fastEthernet 0/0
6. R2(config-if)#ip address 192.168.3.1 255.255.255.0
7. R2(config-if)#no shutdown

4)R3上配置接口IP

1. R3(config)#interface fastEthernet 0/1
2. R3(config-if)#ip address 192.168.3.2 255.255.255.0
3. R3(config-if)#no shutdown
4. R3(config-if)#exit
5. R3(config)#interface fastEthernet 0/0
6. R3(config-if)#ip address 192.168.4.254 255.255.255.0
7. R3(config-if)#no shutdown

5）R1、R2、R3上分别添加静态路由

1. R1(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2
2. R1(config)#ip route 192.168.4.0 255.255.255.0 192.168.2.2
3. R2(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
4. R2(config)#ip route 192.168.4.0 255.255.255.0 192.168.3.2
5. R3(config)#ip route 192.168.1.0 255.255.255.0 192.168.3.1
6. R3(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.1

6）R1上查看路由表

1. R1#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. C 192.168.1.0/24 is directly connected, FastEthernet0/0
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. S 192.168.3.0/24 [1/0] via 192.168.2.2 //静态路由
13. S 192.168.4.0/24 [1/0] via 192.168.2.2 //静态路由

7）R2上查看路由表

1. R2#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. S 192.168.1.0/24 [1/0] via 192.168.2.1 //静态路由
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. C 192.168.3.0/24 is directly connected, FastEthernet0/0
13. S 192.168.4.0/24 [1/0] via 192.168.3.2 //静态路由

8）R3上查看路由表

1. R3#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is not set
10. S 192.168.1.0/24 [1/0] via 192.168.3.1 //静态路由
11. S 192.168.2.0/24 [1/0] via 192.168.3.1 //静态路由
12. C 192.168.3.0/24 is directly connected, FastEthernet0/1
13. C 192.168.4.0/24 is directly connected, FastEthernet0/0

9）按图-4配置PC的IP地址
10）测试网络连通性,PC1 ping 192.168.2.2、192.168.3.1、192.168.3.2、192.168.4.1

1. PC>ping 192.168.2.2 //ping 192.168.2.2
2. Pinging 192.168.2.2 with 32 bytes of data:
3. Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
4. Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
5. Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
6. Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
7. Ping statistics for 192.168.2.2:
8. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
9. Approximate round trip times in milli-seconds:
10. Minimum = 0ms, Maximum = 0ms, Average = 0ms
11. PC>ping 192.168.3.1 //ping 192.168.3.1
12. Pinging 192.168.3.1 with 32 bytes of data:
13. Reply from 192.168.3.1: bytes=32 time=0ms TTL=254
14. Reply from 192.168.3.1: bytes=32 time=3ms TTL=254
15. Reply from 192.168.3.1: bytes=32 time=0ms TTL=254
16. Reply from 192.168.3.1: bytes=32 time=0ms TTL=254
17. Ping statistics for 192.168.3.1:
18. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
19. Approximate round trip times in milli-seconds:
20. Minimum = 0ms, Maximum = 3ms, Average = 0ms
21. PC>ping 192.168.3.2 //ping 192.168.3.2
22. Pinging 192.168.3.2 with 32 bytes of data:
23. Reply from 192.168.3.2: bytes=32 time=0ms TTL=253
24. Reply from 192.168.3.2: bytes=32 time=12ms TTL=253
25. Reply from 192.168.3.2: bytes=32 time=0ms TTL=253
26. Reply from 192.168.3.2: bytes=32 time=12ms TTL=253
27. Ping statistics for 192.168.3.2:
28. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
29. Approximate round trip times in milli-seconds:
30. Minimum = 0ms, Maximum = 12ms, Average = 6ms
31. PC>ping 192.168.4.1 //ping 192.168.4.1
32. Pinging 192.168.4.1 with 32 bytes of data:
33. Reply from 192.168.4.1: bytes=32 time=0ms TTL=125
34. Reply from 192.168.4.1: bytes=32 time=10ms TTL=125
35. Reply from 192.168.4.1: bytes=32 time=0ms TTL=125
36. Reply from 192.168.4.1: bytes=32 time=22ms TTL=125
37. Ping statistics for 192.168.4.1:
38. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
39. Approximate round trip times in milli-seconds:
40. Minimum = 0ms, Maximum = 22ms, Average = 8ms

11）R1、R3取消静态路由

1. R1(config)#no ip route 192.168.3.0 255.255.255.0 192.168.2.2
2. R1(config)#no ip route 192.168.4.0 255.255.255.0 192.168.2.2
3. R3(config)#no ip route 192.168.1.0 255.255.255.0 192.168.3.1
4. R3(config)#no ip route 192.168.2.0 255.255.255.0 192.168.3.1

12）R1、R3添加默认路由

1. R1(config)#ip route 0.0.0.0 0.0.0.0 192.168.2.2
2. R3(config)#ip route 0.0.0.0 0.0.0.0 192.168.3.1

13）R1上查看路由表

1. R1#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is 192.168.2.2 to network 0.0.0.0
10. C 192.168.1.0/24 is directly connected, FastEthernet0/0
11. C 192.168.2.0/24 is directly connected, FastEthernet0/1
12. S* 0.0.0.0/0 [1/0] via 192.168.2.2 //默认路由

14）R3上查看路由表

1. R3#show ip route
2. Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
3. D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
4. N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
5. E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
6. i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
7. * - candidate default, U - per-user static route, o - ODR
8. P - periodic downloaded static route
9. Gateway of last resort is 192.168.3.1 to network 0.0.0.0
10. C 192.168.3.0/24 is directly connected, FastEthernet0/1
11. C 192.168.4.0/24 is directly connected, FastEthernet0/0
12. S* 0.0.0.0/0 [1/0] via 192.168.3.1 //默认路由

15）测试网络连通性,PC1 ping 192.168.4.1

1. PC>ping 192.168.4.1
2. Pinging 192.168.4.1 with 32 bytes of data:
3. Reply from 192.168.4.1: bytes=32 time=1ms TTL=125
4. Reply from 192.168.4.1: bytes=32 time=0ms TTL=125
5. Reply from 192.168.4.1: bytes=32 time=14ms TTL=125
6. Reply from 192.168.4.1: bytes=32 time=14ms TTL=125
7. Ping statistics for 192.168.4.1:
8. Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
9. Approximate round trip times in milli-seconds:
10. Minimum = 0ms, Maximum = 14ms, Average = 7ms

如若还不明白就看下面这个

转载于:https://www.cnblogs.com/fyy-hhzzj/p/8258836.html

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