静态路由综合大实验

实验拓扑

实验需求

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，之后不能再对其进行任何配置；

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、R6 telnet R5的公有地址时，实际登录到R1上；

8、R4与R5正常通过1000M链路，故障时通过100m链路；

实验思路

1、划分IP（划分IP的方式有多种，以下划分方式可做为参考），并给相应设备配置IP地址。

分析：纵观整个网络拓扑（包括环回网段，考虑汇总），可将192.168.1.0/24划分为6个大的网段。

（1）192.168.1.0/27----骨干链路

分析：骨干链路有6条,继续将192.168.1.0/27网段，划分成6个小网段。30位的掩码。也可保证每条链路只有两个IP地址可配，节约IP地址。

• 192.168.1.0/30
• 192.168.1.4/30
• 192.168.1.8/30
• 192.168.1.12/30
• 192.168.1.16/30
• 192.168.1.20/30

（2）192.168.1.32/27----R1环回

分析：考虑到环回地址，最后需要汇总，故为了汇总方便，可将192.168.1.32/27继续划分出两个连续的小网段，分别给两个环回口，同理R2/R4的环回划分也是一样的思想。

L0：   192.168.1.32/28

L1:     192.168.1.48/28

（3）192.168.1.64/27----R2环回

L0：  192.168.1.64/28

L1:    192.168.1.80/28

（4）192.168.1.96/27----R3

（5）192.168.1.128/27----R4环回

L0：   192.168.1.128/28

L1:    192.168.1.144/28

（6）192.168.1.160/27----R4环回

2、配置DHCP,使R3下面的两台PC通过DHCP自动获取IP地址。

3、编写除了到达1.0.0.0/24之外，到达其他网段的静态路由。

4、配置缺省路由，实现到1.0.0.0/24互通。此时实现内网通；在R5路由器上配置nat，可用esay ip,此时实现全网通

5、做汇总，做防环，做黑洞路由配置

6、做备份，通过改变路由条目优先级实现

7、测试，观察1000Mb/s链路故障时，数据能否走100Mb/s链路。

8、R6 telnet R5的公有地址时，实际登录到R1上，在R1上配置telnet服务，通过nat server发布到R5的公网接口。

实验步骤

1、配置IP地址

[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 192.168.1.1 30
[R1-GigabitEthernet0/0/0]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 192.168.1.5 30
[R1]int l0
[R1-LoopBack0]ip add 192.168.1.33 28
[R1-LoopBack0]int l1
[R1-LoopBack1]ip add 192.168.1.49 28

[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 192.168.1.2 30
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 192.168.1.9 30
[R2]int l0
[R2-LoopBack0]ip add 192.168.1.65 28
[R2-LoopBack0]int l1
[R2-LoopBack1]ip add 192.168.1.81 28

[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 192.168.1.6 30
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 192.168.1.13 30
[R3]int g0/0/2
[R3-GigabitEthernet0/0/2]ip add 192.168.1.97 27

[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 192.168.1.10 30
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 192.168.1.14 30

[R4]int g0/0/2
[R4-GigabitEthernet0/0/2]ip add 192.168.1.17 30
[R4-GigabitEthernet0/0/2]int g4/0/0
[R4-GigabitEthernet4/0/0]ip add 192.168.1.21 30
[R4]int l0
[R4-LoopBack0]ip add 192.168.1.129 28
[R4-LoopBack0]int l1
[R4-LoopBack1]ip add 192.168.1.145 28

[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 192.168.1.18 30
[R5-GigabitEthernet0/0/0]int g0/0/2
[R5-GigabitEthernet0/0/2]ip add 192.168.1.22 30
[R5]int g0/0/1
[R5-GigabitEthernet0/0/1]ip add 12.0.0.5 24
[R5]int l0
[R5-LoopBack0]ip add 192.168.1.161 27

[R6]int g0/0/0
[R6-GigabitEthernet0/0/0]ip add 12.0.0.6 24
[R6]int l
[R6]int LoopBack 0
[R6-LoopBack0]ip add 1.0.0.6 24

2、配置R3的DHCP

[R3]dhcp enable
[R3]ip pool aa
[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 8.8.8.8
[R3-ip-pool-aa]quit
[R3]int g0/0/2
[R3-GigabitEthernet0/0/2]dhcp select global

3、配置除了到达1.0.0.0/24之外的静态路由

[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 192.168.1.96 27 192.168.1.6
[R1]ip route-static 192.168.1.12 30 192.168.1.6
[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 192.168.1.16 30 192.168.1.6
[R1]ip route-static 192.168.1.20 30 192.168.1.6
[R1]ip route-static 192.168.1.128 30 192.168.1.6
[R1]ip route-static 192.168.1.128 30 192.168.1.2
[R1]ip route-static 192.168.1.160 27 192.168.1.2
[R1]ip route-static 192.168.1.160 27 192.168.1.6

[R2]ip route-static 192.168.1.128 27 192.168.1.10
[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 192.168.1.12 30 192.168.1.10
[R2]ip route-static 192.168.1.96 27 192.168.1.10
[R2]ip route-static 192.168.1.96 27 192.168.1.1
[R2]ip route-static 192.168.1.4 30 192.168.1.1
[R2]ip route-static 192.168.1.32 27 192.168.1.1
[R2]ip route-static 192.168.1.160 27 192.168.1.10

[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 192.168.1.64 27 192.168.1.14
[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

[R4]ip route-static 192.168.1.64 27 192.168.1.9
[R4]ip route-static 192.168.1.0 30 192.168.1.9
[R4]ip route-static 192.168.1.32 27 192.168.1.9
[R4]ip route-static 192.168.1.32 27 192.168.1.13
[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

[R5]ip route-static 192.168.1.128 27 192.168.1.17
[R5]ip route-static 192.168.1.96 27 192.168.1.17
[R5]ip route-static 192.168.1.4 30 192.168.1.17
[R5]ip route-static 192.168.1.32 27 192.168.1.17
[R5]ip route-static 192.168.1.0 30 192.168.1.17
[R5]ip route-static 192.168.1.64 27 192.168.1.17
[R5]ip route-static 192.168.1.8 30 192.168.1.17
[R5]ip route-static 192.168.1.12 30 192.168.1.17

[R5]ip route-static 192.168.1.128 27 192.168.1.21
[R5]ip route-static 192.168.1.96 27 192.168.1.21
[R5]ip route-static 192.168.1.4 30 192.168.1.21
[R5]ip route-static 192.168.1.32 27 192.168.1.21
[R5]ip route-static 192.168.1.0 30 192.168.1.21
[R5]ip route-static 192.168.1.64 27 192.168.1.21
[R5]ip route-static 192.168.1.8 30 192.168.1.21
[R5]ip route-static 192.168.1.12 30 192.168.1.21

测试：

4、配置全网通

（1）配置缺省路由，实现到1.0.0.0/24互通。此时实现内网通

[R1]ip route-static 0.0.0.0 0 192.168.1.2
[R1]ip route-static 0.0.0.0 0 192.168.1.6
[R2]ip route-static 0.0.0.0 0 192.168.1.10
[R3]ip route-static 0.0.0.0 0 192.168.1.14
[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]ip route-static 0.0.0.0 0 12.0.0.6

（2）在R5路由器上配置nat

[R5]acl 2000
[R5-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R5-acl-basic-2000]int g0/0/1
[R5-GigabitEthernet0/0/1]nat outbound 2000

测试全网通

5、防环，做黑洞路由配置

[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

6、做备份

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

[R5]ip route-static 192.168.1.0 255.255.255.252 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.4 255.255.255.252 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.8 255.255.255.252 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.12 255.255.255.252 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.32 255.255.255.224 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.64 255.255.255.224 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.96 255.255.255.224 192.168.1.21 preference 61
[R5]ip route-static 192.168.1.128 255.255.255.224 192.168.1.21 preference 61

查看路由表变化

测试是否可以通过100M/s，实现全网通：

7、R6 telnet R5的公有地址时，实际登录到R1上；

[R1-aaa]local-user xiaodu password cipher 123456 privilege level 15
[R1-aaa]local-user xiaodu service-type telnet
[R1]user-interface vty 0 4
[R1-ui-vty0-4]authentication-mode aaa

[R5]int g0/0/1
[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