eNSP静态路由实验

原创已于 2024-07-22 16:54:13 修改 · 1k 阅读

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#网络

于 2024-07-22 15:42:35 首次发布

一、实验拓扑

二、实验目的

1、R6为ISP，接口IP地址均为公有地址，该设备只能配置IP地址之后不能冉对其进行任何配置;

2、R1-R5为局域网，私有IP地址192.168.1.0/24，请合理分配;

3、R1、R2、R4，各有两个环回IP地址;R5,R6各有一个环回地址;所有路由器上环回均代表连接用户的接口;

4、R3下面的两台PC通过DHCP自动获取IP地址;

5、选路最佳，路由表尽量小，避免环路;

6、R1-R5均可以访问R6的环回;

7、在R1上配置te1net服务，使R6能通过R5的公有地址te1net到R1上;

8、R4与R5正常通过1000M链路，故障时通过100M链路;

三、实验步骤

1、划分IP地址

先划分IP地址，根据拓扑图分析，总共需要14个网段，将骨干链路作为一个大网段，各路由器环回网段作为一个大网段（包括R3下的民用网段），共六大网段

192.168.1.0000 0000/27---骨干链路

192.168.1.0000 0000/30---192.168.1.0/30

192.168.1.0000 0100/30---192.168.1.4/30

192.168.1.0000 1000/30---192.168.1.8/30

192.168.1.0000 1100/30---192.168.1.12/30

192.168.1.0001 0000/30---192.168.1.16/30

192.168.1.0001 0100/30---192.168.1.20/30

192.168.1.0001 1000/30---192.168.1.24/30

192.168.1.0001 1100/30---192.168.1.28/30

192.168.1.0010 0000---192.168.1.32/27---R1环回链路

192.168.1.0010 0000/28---192.168.1.32/28

192.168.1.0011 0000/28---192.168.1.48/28

192.168.1.0100 0000/27---192.168.1.64/27---R2环回链路

192.168.1.0100 0000/28---192.168.1.64/28

192.168.1.0101 0000/28---192.168.1.80/28

192.168.1.0110 0000/27---192.168.1.96/27---R3民用网段

192.168.1.1000 0000/27---192.168.1.128/27---R4环回链路

192.168.1.1000 0000/28---192.168.1.128/28

192.168.1.1001 0000/28---192.168.1.144/28

192.168.1.1010 0000/27---192.168.1.160/27---R5环回链路

2、配置IP地址

[R1]int g 0/0/0

[R1-GigabitEthernet0/0/0]ip ad 192.168.1.1 30

[R1-GigabitEthernet0/0/1]ip ad 192.168.1.5 30

[R1]interface LoopBack 0

[R1-LoopBack0]interface LoopBack 0

[R1-LoopBack1]ip address 192.168.1.33

[R1-LoopBack0]interface LoopBack 1

[R1-LoopBack1]ip address 192.168.1.49

R2、R3、R4、R5配置同理

3、R3配置DHCP服务器

[R3]dhcp enable

Info: The operation may take a few seconds. Please wait for a moment.done.

[R3]ip pool aa

Info:It's successful to create an IP address pool.

[R3-ip-pool-aa]net

[R3-ip-pool-aa]network 192.168.1.96 mask 27

[R3-ip-pool-aa]gateway-list 192.168.1.97

[R3-ip-pool-aa]dns-list 114.114.114.114

[R3-ip-pool-aa]int g 0/0/2

[R3-GigabitEthernet0/0/2]dhcp select global

4、配置静态路由

R1配置：

[R1]ip route-static 192.168.1.64 27 192.168.1.2

[R1]ip route-static 192.168.1.8 30 192.168.1.2

[R1]ip route-static 192.168.1.16 30 192.168.1.2

[R1]ip route-static 192.168.1.20 30 192.168.1.2

[R1]ip route-static 192.168.1.12 30 192.168.1.6

[R1]ip route-static 192.168.1.96 27 192.168.1.6

[R1]ip route-static 192.168.1.128 27 192.168.1.2

[R1]ip route-static 192.168.1.160 27 192.168.1.2

[R1]ip route-static 0.0.0.0 0 192.168.1.2

R2配置：

[R2]ip route-static 192.168.1.32 27 192.168.1.1

[R2]ip route-static 192.168.1.4 30 192.168.1.1

[R2]ip route-static 192.168.1.96 27 192.168.1.1

[R2]ip route-static 192.168.1.128 27 192.168.1.10

[R2]ip route-static 192.168.1.12 30 192.168.1.10

[R2]ip route-static 192.168.1.16 30 192.168.1.10

[R2]ip route-static 192.168.1.20 30 192.168.1.10

[R2]ip route-static 192.168.1.160 27 192.168.1.10

[R2]ip route-static 0.0.0.0 0 192.168.1.10

R3配置：

[R3]ip route-static 192.168.1.32 27 192.168.1.5

[R3]ip route-static 192.168.1.0 30 192.168.1.5

[R3]ip route-static 192.168.1.64 27 192.168.1.5

[R3]ip route-static 192.168.1.8 30 192.168.1.14

[R3]ip route-static 192.168.1.128 27 192.168.1.14

[R3]ip route-static 192.168.1.16 30 192.168.1.14

[R3]ip route-static 192.168.1.20 30 192.168.1.14

[R3]ip route-static 192.168.1.160 27 192.168.1.14

[R3]ip route-static 0.0.0.0 0 192.168.1.14

R4配置：

[R4]ip route-static 192.168.1.0 30 192.168.1.9

[R4]ip route-static 192.168.1.64 27 192.168.1.9

[R4]ip route-static 192.168.1.32 27 192.168.1.9

[R4]ip route-static 192.168.1.4 30 192.168.1.13

[R4]ip route-static 192.168.1.96 27 192.168.1.13

[R4]ip route-static 192.168.1.160 27 192.168.1.18

[R4]ip route-static 192.168.1.160 27 192.168.1.22

[R4]ip route-static 0.0.0.0 0 192.168.1.18

[R4]ip route-static 0.0.0.0 0 192.168.1.22

R5配置：

[R5]ip route-static 192.168.1.0 24 192.168.1.17

[R5]ip route-static 192.168.1.0 24 192.168.1.21

[R5]ip route-static 0.0.0.0 0 12.0.0.1

5、配置空接口，防止成环

[R1]ip route-static 192.168.1.32 27 NULL 0

[R2]ip route-static 192.168.1.64 27 NULL 0

[R4]ip route-static 192.168.1.128 27 NULL 0

[R5]ip route-static 192.168.1.160 27 NULL 0

6、R4与R5正常通过1000M链路，故障时通过100m链路

修改优先级即可

[R1]ip route-static 192.168.1.20 30 192.168.1.2 preference 61

[R1]ip route-static 192.168.1.20 30 192.168.1.6 preference 61

[R2]ip route-static 192.168.1.20 30 192.168.1.10 preference 61

[R3]ip route-static 192.168.1.20 30 192.168.1.14 preference 61

[R4]ip route-static 0.0.0.0 0 192.168.1.22 preference 61

[R5]ip route-static 192.168.1.0 24 192.168.1.21 preference 61

7、均可访问R6环回：

R5配置easy IP：

[R5]acl 2000

[R5-acl-basic-2000]rule 10 permit source 192.168.1.0 0.0.255.255

[R5-acl-basic-2000]int g 0/0/1

[R5-GigabitEthernet0/0/1]nat outbound 2000

8、R6 telnet R5，实则登录R1

[R1]aaa

[R1-aaa]local-user admin privilege level 15 password cipher 123456

[R1-aaa]local-user admin service-type telnet

[R1]user-interface vty 0 4

[R1-ui-vty0-4]authentication-mode aaa

[R5-GigabitEthernet0/0/1]nat server protocol tcp global current-interface 23 inside 192.168.1.1 23

Warning:The port 23 is well-known port. If you continue it may cause function failure.

Are you sure to continue?[Y/N]:y

R6验证：

<R6>telnet 12.0.0.2

Trying 12.0.0.2 ...

Press CTRL+K to abort

Connected to 12.0.0.2 ...

Username:

Password:

Info: The max number of VTY users is 10, and the number

of current VTY users on line is 1.

The current login time is 2024-03-16 14:16:39.

<R1>