实验要求
1、R4为ISP,所连接的所有物理接口为公有网段,任意指定ip即可
2、R1-2-3构建-个星型结构的MGRE结构,其中R1为中心点,假设R1的公有ip为固定地址
3、R1-4-5 构建另一个全连网状的MGRE网络,其中R1/5均为中心区域;
4、使用OSPF实现整个私有网络的互通,同时所有pc可以正常访问R6的环回
第一步:IP地址规划
PC地址:
设备 | 网关 | 网址 |
PC1 | 192.168.1.1 24 | 192.168.1.2 24 |
PC2 | 192.168.2.1 24 | 192.168.2.1 24 |
PC3 | 192.168.3.1 24 | 192.168.3.2 24 |
PC4 | 192.168.4.1 24 | 192.168.4.2 24 |
PC5 | 192.168.5.1 24 | 192.168.5.2 24 |
设备地址:
设备 | 接口 | 地址 |
R1 | g0/0/0 | 192.168.1.1 24 |
g0/0/1 | 16.1.1.1 24 | |
g0/0/2 | 61.1.1.1 24 | |
R2 | g0/0/0 | 192.168.2.1 24 |
g0/0/1 | 26.1.1.2 24 | |
R3 | g0/0/0 | 192.168.2.1 24 |
g0/0/1 | 36.1.1.3 24 |
|
R4 | g0/0/0 | 162.168.4.1 24 |
g0/0/1 | 46.1.1.4 24 | |
R5 | g0/0/0 | 192.168.5.1 24 |
g0/0/1 | 56.1.1.5 24 | |
R6 | g0/0/0 | 16.1.1.6 24 |
g2/0/0 | 61.1.1.6 24 | |
g0/0/1 | 26.1.1.6 24 | |
g0/0/2 | 36.1.1.6 24 | |
g3/0/0 | 56.1.1.6 24 | |
g4/0/0 | 46.1.1.6 24 |
第二步:配置配IP地址
R1配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.1.1/24 up up
GigabitEthernet0/0/1 16.1.1.1/24 up up
GigabitEthernet0/0/2 61.1.1.6/24 up up
NULL0 unassigned up up(s)
R2配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.2.1/24 up up
GigabitEthernet0/0/1 26.1.1.2/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
R3配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.3.1/24 up up
GigabitEthernet0/0/1 36.1.1.3/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
R4配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.4.1/24 up up
GigabitEthernet0/0/1 46.1.1.4/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
R5配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 192.168.5.1/24 up up
GigabitEthernet0/0/1 56.1.1.5/24 up up
GigabitEthernet0/0/2 unassigned down down
NULL0 unassigned up up(s)
R6配置
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 16.1.1.6/24 up up
GigabitEthernet0/0/1 26.1.1.6/24 up up
GigabitEthernet0/0/2 36.1.1.6/24 up up
GigabitEthernet2/0/0 61.1.1.6/24 up up
GigabitEthernet3/0/0 56.1.1.6/24 up up
GigabitEthernet4/0/0 46.1.1.6/24 up up
LoopBack0 6.6.6.6/24 up up(s)
NULL0 unassigned up up(s)
第三步:配置缺省路由
[R1]ip route-static 0.0.0.0 0 16.1.1.6
[R2]ip route-static 0.0.0.0 0 26.1.1.6
[R3]ip route-static 0.0.0.0 0 36.1.1.6
[R4]ip route-static 0.0.0.0 0 46.1.1.6
[R5]ip route-static 0.0.0.0 0 56.1.1.6
第四步:NAT
R1配置
[R1]acl 2000
[R1-acl-basic-2000]rule 1 permit source any
[R1]int g 0/0/1
[R1-GigabitEthernet0/0/1]nat outbound 2000
R2配置
[R2]acl 2000
[R2-acl-basic-2000]rule 1 permit source any
[R2]int g 0/0/1
[R2-GigabitEthernet0/0/1]nat outbound 2000
R3配置
[R3]acl 2000
[R3-acl-basic-2000]rule 1 permit source any
[R3]int g 0/0/1
[R3-GigabitEthernet0/0/1]nat outbound 2000
R4配置
[R4]acl 2000
[R4-acl-basic-2000]rule 1 permit source any
[R4]int g 0/0/1
[R4-GigabitEthernet0/0/1]nat outbound 2000
R5配置
[R5]acl 2000
[R5-acl-basic-2000]rule 1 permit source any
[R5]int g 0/0/1
[R5-GigabitEthernet0/0/1]nat outbound 2000
测试
PC>ping 6.6.6.6
Ping 6.6.6.6: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 6.6.6.6: bytes=32 seq=2 ttl=254 time=46 ms
From 6.6.6.6: bytes=32 seq=3 ttl=254 time=16 ms
From 6.6.6.6: bytes=32 seq=4 ttl=254 time=16 ms
From 6.6.6.6: bytes=32 seq=5 ttl=254 time=15 ms--- 6.6.6.6 ping statistics ---
5 packet(s) transmitted
4 packet(s) received
20.00% packet loss
round-trip min/avg/max = 0/23/46 ms
PC1可以和公网通讯
第五步:R1-2-3构建一个星型结构的MGRE结构
R1配置
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]ip address 10.1.1.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp
[R1-Tunnel0/0/0]source 61.1.1.1
[R1-Tunnel0/0/0]nhrp network-id 100
R2配置
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]ip address 10.1.1.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source g0/0/1
[R2-Tunnel0/0/0]nhrp entry 10.1.1.1 61.1.1.1 register
[R2-Tunnel0/0/0]nhrp network-id 100
R3配置
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]ip address 10.1.1.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source g0/0/1
[R3-Tunnel0/0/0]nhrp entry 10.1.1.1 61.1.1.1 register
[R3-Tunnel0/0/0]nhrp network-id 100
第六步:R1-4-5 构建另一个全连网状的MGRE网络
R1配置
[R1]interface Tunnel 0/0/1
[R1-Tunnel0/0/1]ip address 20.1.1.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre p2mp
[R1-Tunnel0/0/1]source 16.1.1.1
[R1-Tunnel0/0/1]nhrp network-id 101
[R1-Tunnel0/0/1]nhrp entry 20.1.1.2 46.1.1.4 register
[R1-Tunnel0/0/1]nhrp entry 20.1.1.3 56.1.1.5 register
R4配置
[R4]interface Tunnel 0/0/1
[R4-Tunnel0/0/1]ip address 20.1.1.2 24
[R4-Tunnel0/0/1]tunnel-protocol gre p2mp
[R4-Tunnel0/0/1]source 46.1.1.4
[R4-Tunnel0/0/1]nhrp network-id 101
[R4-Tunnel0/0/1]nhrp entry 20.1.1.1 16.1.1.1 register
[R4-Tunnel0/0/1]nhrp entry 20.1.1.3 56.1.1.5 register
R5配置
[R5]interface Tunnel 0/0/1
[R5-Tunnel0/0/1]ip address 20.1.1.3 24
[R5-Tunnel0/0/1]tunnel-protocol gre p2mp
[R5-Tunnel0/0/1]source 56.1.1.5
[R5-Tunnel0/0/1]nhrp network-id 101
[R5-Tunnel0/0/1]nhrp entry 20.1.1.1 16.1.1.1 register
[R5-Tunnel0/0/1]nhrp entry 20.1.1.2 46.1.1.4 register
第七步:书写OSPF
R1配置
[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]ar
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]net
[R1-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]net
[R1-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]ne
[R1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
R2配置
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]ar
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]ne
[R2-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[R2-ospf-1-area-0.0.0.0]net
[R2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
R3配置
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]ar
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]ne
[R3-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[R3-ospf-1-area-0.0.0.0]net
[R3-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255
R4配置
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]ar
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]net
[R4-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]net
[R4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255
R5配置
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]ar
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]net
[R5-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[R5-ospf-1-area-0.0.0.0]net
[R5-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
第七步:将p2p修改为bordcast
R1配置
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]ospf network-type broadcast
[R1]interface Tunnel 0/0/1
[R1-Tunnel0/0/1]ospf network-type broadcast
R2配置
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]ospf network-type broadcast
R3配置
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]ospf network-type broadcast
R4配置
[R4]interface Tunnel 0/0/1
[R4-Tunnel0/0/1]ospf network-type broadcast
R5配置
[R5]interface Tunnel 0/0/1
[R5-Tunnel0/0/1]ospf network-type broadcast
第八步:开启伪广播
R1配置
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]nhrp entry multicast dynamic
[R1-Tunnel0/0/0]q
[R1]interface Tunnel 0/0/1
[R1-Tunnel0/0/1]nhrp entry multicast dynamic
R4配置
[R4]interface Tunnel 0/0/1
[R4-Tunnel0/0/1]nhrp entry multicast dynamic
R5配置
[R5]interface Tunnel 0/0/1
[R5-Tunnel0/0/1]nhrp entry multicast dynamic
第十步:修改优先级
R2配置
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]os
[R2-Tunnel0/0/0]ospf d
[R2-Tunnel0/0/0]ospf dr-priority 0
R3配置
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]o
[R3-Tunnel0/0/0]ospf d
[R3-Tunnel0/0/0]ospf dr-priority 0