BGP综合实验

要求:
1.AS1中存在两个环回，一个地址是192.168.1.0/24，改地址不能在任何协议中宣告；
  AS3中存在两个环回，一个地址为192.168.2.0/24，该地址不能在任何协议中宣告，最终要求这两个环回可以ping通；
2.整个AS2的IP地址为172.168.0.0/16，请合理划分；并且其内部配置OSPF协议；
3.AS间的骨干链路IP地址随意定制；
4.使用BGP协议让整个网路所有设备的环回可以互相访问；
5.减少路由条目数量，避免环路出现

1.配置IP

R1配置

[R1]I int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 12.1.1.1 24
[R1-GigabitEthernet0/0/0]int l0
[R1-LoopBack0]ip add 172.16.0.1 32
[R1-LoopBack0]int l1
[R1-LoopBack1]ip add 192.168.1.1 24
​R2配置
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.1.1.2 2
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 172.16.1.1 30
[R2-GigabitEthernet0/0/1]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 172.16.1.21 30
[R2-GigabitEthernet0/0/2]int l0
[R2-LoopBack0]ip add 172.16.0.2 32
​R3配置
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 172.16.1.2 30
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 172.16.1.5 3
[R3-GigabitEthernet0/0/1]int l0
[R3-LoopBack0]ip ad 172.16.0.3 32
[R3-LoopBack0]int l1
[R3-LoopBack1]ip add 172.16.3.3 24
​R4配置
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 172.16.1.6 30
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 172.16.1.9 30
[R4-GigabitEthernet0/0/1]int l0
[R4-LoopBack0]ip add 172.16.0.4 32
[R4-LoopBack0]int l1
[R4-LoopBack1]ip add 172.16.4.4 24
​R5配置
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 172.16.1.22 30
[R5-GigabitEthernet0/0/0]int g0/0/1
[R5-GigabitEthernet0/0/1]int l0
[R5-LoopBack0]int l1
[R5-LoopBack1]ip add 172.16.5.5 24
​R6配置
[R6]int g0/0/0
[R6-GigabitEthernet0/0/0]ip add 172.16.1.18 30
[R6-GigabitEthernet0/0/0]int g0/0/1
[R6-GigabitEthernet0/0/1]ip add 172.16.1.13 30
[R6-GigabitEthernet0/0/1]int l0
[R6-LoopBack0]ip add 172.16.0.6 32
[R6-LoopBack0]int l1
[R6-LoopBack1]ip add 172.16.6.6 24
​R7配置
[R7]int g0/0/0
[R7-GigabitEthernet0/0/0]ip add 172.16.1.14 30
[R7-GigabitEthernet0/0/0]int g0/0/1
[R7-GigabitEthernet0/0/1]ip add 172.16.1.10 30
[R7-GigabitEthernet0/0/1]int g0/0/2
[R7-GigabitEthernet0/0/2]ip add 34.1.1.7 24
[R7-GigabitEthernet0/0/2]int l0
[R7-LoopBack0]ip add 172.16.0.7 32
[R7-LoopBack0]int l1
[R7-LoopBack1]ip add 172.16.7.7 24
​R8配置
[R8]int g0/0/0
[R8-GigabitEthernet0/0/0]ip add 34.1.1.8 24
[R8-GigabitEthernet0/0/0]int l0
[R8-LoopBack0]ip add 172.16.0.8 32
[R8-LoopBack0]int l1
[R8-LoopBack1]ip add 192.168.2.8 24

2.配置ospf

​R2配置

[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255
​​R3配置
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255
​​R4配置
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255
​​R5配置
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255
​​R6配置
[R6]ospf 1 router-id 5.5.5.5
[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255
​​R7配置
[R7]ospf 1 router-id 7.7.7.7
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]net 172.16.0.0 0.0.255.255

3.使用bgp建立邻居

​​R1配置

[R1]bgp 1
[R1-bgp]peer 12.1.1.2 as-number 2
​​​R2配置
[R2]bgp 64512
[R2-bgp]confederation id 2  
[R2-bgp]confederation peer-as 64513  
[R2-bgp]peer 12.1.1.1 as-number 1  
[R2-bgp]peer 172.16.0.3 as-number 64512
[R2-bgp]peer 172.16.0.3 connect-interface l0   
[R2-bgp]peer 172.16.0.3 next-hop-local  
[R2-bgp]peer 172.16.1.22 as-number 64513
[R2-bgp]peer 172.16.1.22 next-hop-local
​​​R3配置
[R3-bgp]confederation id 2  
[R3-bgp]peer 172.16.0.2 as-number 64512  
[R3-bgp]peer 172.16.0.2 connect-interface l0  
[R3-bgp]peer 172.16.0.4 as-number 64512   
[R3-bgp]peer 172.16.0.4 connect-interface l0  
​​​​R4配置
[R4]bgp 64512
[R4-bgp]confederation id 2
[R4-bgp]peer 172.16.0.3 as-number 64512
[R4-bgp]peer 172.16.0.3 connect-interface l0  
[R4-bgp]peer 172.16.0.3 next-hop-local  
​​​​R5配置
[R5]bgp 64513
[R5-bgp]confederation id 2
[R5-bgp]confederation peer-as 64512
[R5-bgp]peer 172.16.1.21 as-number 64512
[R5-bgp]peer 172.16.1.21 next-hop-local  
[R5-bgp]peer 172.16.0.6 as 64513
[R5-bgp]peer 172.16.0.6 connect-interface l0
[R5-bgp]peer 172.16.0.6 next-hop-local
​​​​R6配置
[R6]bgp 64513
[R6-bgp]confederation id 2
[R6-bgp]peer 172.16.0.5 as-number 64513 
[R6-bgp]peer 172.16.0.5 connect-interface l0
[R6-bgp]peer 172.16.0.7 as-number 64513
[R6-bgp]peer 172.16.0.7 connect-interface l0
​​​​R7配置
[R7]bgp 64513
[R7-bgp]peer 172.16.0.6 as-number 64513
[R7-bgp]peer 172.16.0.6 connect-interface l0
[R7-bgp]peer 172.16.0.6 next-hop-local  
[R7-bgp]peer 34.1.1.8 as-number 3
在R1写一个测试网段

[R1]bgp 1
[R1-bgp]net 172.16.0.1 32
[R8]bgp 3
[R8-bgp]net 172.16.0.8 32

4.写路由反射器

[R3]bgp 64512
[R3-bgp]peer 172.16.0.2 re  
[R3-bgp]peer 172.16.0.2 reflect-client 
[R3-bgp]peer 172.16.0.4 re  
[R3-bgp]peer 172.16.0.4 reflect-client 
​
[R6]bgp 64513
[R6-bgp]peer 172.16.0.5 re  
[R6-bgp]peer 172.16.0.5 reflect-client 
[R6-bgp]peer 172.16.0.7 re  
[R6-bgp]peer 172.16.0.7 reflect-client

5.配置防环机制,以及网段宣告

[R2]ip route-static 172.16.0.0 16 NULL 0
[R2-bgp]net 172.16.0.0 16   
​
[R7]ip route-static 172.16.0.0 16 NULL 0
[R7]bgp 64513
[R7-bgp]net 172.16.0.0 16

​
6.配置隧道接口 --- GRE

[R1]int t0/0/0
[R1-Tunnel0/0/0]ip add 10.1.1.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre
[R1-Tunnel0/0/0]source 172.16.0.1
[R1-Tunnel0/0/0]destination 172.16.0.8
​
[R8]int t0/0/0
[R8-Tunnel0/0/0]tunnel-protocol gre
[R8-Tunnel0/0/0]source 172.16.0.8   
[R8-Tunnel0/0/0]destination 172.16.0.1
​
[R1]ip route-static 192.168.2.0 24 10.1.1.2 
[R8]ip route-static 192.168.1.0 24 10.1.1.1