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;
1.根据网段数并且简化路由再划分IP
2.配置DHCP服务,下发给主机IP
3.配置静态路由,使得内网全通
4.配置路由防止成环
5. R4与R5正常通过1000M链路,故障时通过100m链路,即修改优先级
6.配置Easy IP技术,使得公网与私网互通
7.R6telentR5,实则登录R1
(1)先划分IP地址,根据拓扑图分析,总共需要14个网段,因为要将路由表简化,先分出6个大网段,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)
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
192.168.1.1100 0000/27
192.168.1.1110 0000/27
(2)配置IP地址
R1:
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R1
[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 1
[R1-LoopBack1]ip address 192.168.1.49
[R1-LoopBack0]interface LoopBack 1
[R1-LoopBack1]ip address 192.168.1.49
R2配置:
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R2
[R2]int
[R2]interface g 0/0/0
[R2-GigabitEthernet0/0/0]ip address 192.168.1.2 30
[R2-GigabitEthernet0/0/0]int g 0/0/1
[R2-GigabitEthernet0/0/1]ip address 192.168.1.9 30
[R2-GigabitEthernet0/0/1]q
[R2]int LoopBack0
[R2-LoopBack0]ip address 192.168.1.65 28
[R2-LoopBack0]int LoopBack1
[R2-LoopBack1]ip address 192.168.1.81 28
[R2-LoopBack1]q
R3配置:
<Huawei>
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R3
[R3]int g 0/0/0
[R3-GigabitEthernet0/0/0]ip ad
[R3-GigabitEthernet0/0/0]ip address 192.168.1.6 30
[R3-GigabitEthernet0/0/0]int g 0/0/1
[R3-GigabitEthernet0/0/1]ip ad
[R3-GigabitEthernet0/0/1]ip address 192.168.1.13 30
[R3-GigabitEthernet0/0/1]int g 0/0/2
[R3-GigabitEthernet0/0/2]ip ad
[R3-GigabitEthernet0/0/2]ip address
[R3-GigabitEthernet0/0/2]ip address 192.168.1.97 27
[R3-GigabitEthernet0/0/2]q
[R3]
R4配置:
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R4
[R4]int g 0/0/0
[R4-GigabitEthernet0/0/0]ip address 192.168.1.10 30
[R4-GigabitEthernet0/0/0]int g 0/0/1
[R4-GigabitEthernet0/0/1]ip ad
[R4-GigabitEthernet0/0/1]ip address 192.168.1.14 30
[R4-GigabitEthernet0/0/1]int g 0/0/2
[R4-GigabitEthernet0/0/2]ip ad
[R4-GigabitEthernet0/0/2]ip address 192.168.1.17 30
[R4-GigabitEthernet0/0/2]int g 0/0/3
[R4-GigabitEthernet0/0/3]ip ad
[R4-GigabitEthernet0/0/3]ip address 192.168.1.21 30
[R4-GigabitEthernet0/0/3]q
[R4]int l
[R4]int Lo
[R4]int LoopBack0
[R4-LoopBack0]ip ad
[R4-LoopBack0]ip address 192.168.1.129 28
[R4-LoopBack0]int LoopBack1
[R4-LoopBack1]ip ad
[R4-LoopBack1]ip address 192.168.1.145 28
[R4-LoopBack1]
R5配置:
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R5
[R5]int g 0/0/0
[R5-GigabitEthernet0/0/0]
[R5-GigabitEthernet0/0/0]ip address 192.168.1.18 30
[R5-GigabitEthernet0/0/0]int g0/0/1
[R5-GigabitEthernet0/0/1]ip ad
[R5-GigabitEthernet0/0/1]ip address 12.0.0.2 24
[R5-GigabitEthernet0/0/1]int g 0/0/2
[R5-GigabitEthernet0/0/2]ip address 192.168.1.22 30
[R5-GigabitEthernet0/0/2]q
[R5]int Lo
[R5]int LoopBack0
[R5-LoopBack0]ip ad
[R5-LoopBack0]ip address 192.168.1.161 30
[R5-LoopBack0]q
[R5]
R6配置:
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R6
[R6]int g 0/0/0
[R6-GigabitEthernet0/0/0]ip ad
[R6-GigabitEthernet0/0/0]ip address
[R6-GigabitEthernet0/0/0]ip address 12.0.0.1 24
[R6]int Lo
[R6]int LoopBack0
[R6-LoopBack0]ip ad
[R6-LoopBack0]ip address 1.0.0.1 24
(3)配置DHCP服务器(R3),下发给主机IP
[R3]dhcp e
[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]dhc
[R3-GigabitEthernet0/0/2]dhcp se
[R3-GigabitEthernet0/0/2]dhcp select gl
[R3-GigabitEthernet0/0/2]dhcp select global
PC1:
PC2:
(4)配置静态路由
R1配置:
<R1>sy
[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>sy
[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>
<R3>sy
[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>sy
[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:
#因为R5左边全部属于192.168.1.0/24,所以就合在一起
[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
R6不需要配置路由:
PC端通信:
(5)防止成环
R1:
[R1]ip route-static 192.168.1.32 27 NULL 0
R2:
[R2]ip route-static 192.168.1.64 27 NULL 0
R4:
[R4]ip route-static 192.168.1.128 27 NULL 0
R5:
[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
所以我们修改优先级即可
R1:
[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:
[R2]ip route-static 192.168.1.20 30 192.168.1.10 preference 61
R3:
[R3]ip route-static 192.168.1.20 30 192.168.1.14 preference 61
R4:
[R4]ip route-static 0.0.0.0 0 192.168.1.22 preference 61
R5:
[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
R1 ping R6环回:
PC ping R6环回:
(8)R6telnetR5,实则登录R1
R1配置:
[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 ins
ide 192.168.1.1 23
Warning:The port 23 is well-known port. If you continue it may cause function fa
ilure.
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 ...
Login authentication
Username:admin
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>
<R1>q
<R6>
验证成功!!!
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