BGP小综合

实验题目如下:

实验拓扑如下:

BGP小综合_第1张图片 

 实验要求如下:

【1】R2-7每台路由器均存在一个环回接口用于建立邻居,同时还存在一个环回来代表连接用户的           接口;最终这些连接用户的接口网络需要可以和R1/8的环回通讯

【2】AS2网段地址172.16.0.0/16 减路由条目数量

实验思路如下:

(1)合理的IP规划以及合理的IP分配

(2)合理的配置IGP

(3)合理的配置BGP

(4)合理的BGP路由宣告以及汇总

实验步骤如下:

1、合理的IP分配

指令如下:

R1:

[R1-LoopBack0]ip add 1.1.1.1 24
[R1-LoopBack0]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 12.1.1.1 24

R2:

[R2]int l0
[R2-LoopBack0]ip add 172.16.224.1 32
[R2-LoopBack0]int l1
[R2-LoopBack1]ip add 172.16.32.1 19
[R2-LoopBack1]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.1.1.2 24 
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 172.16.0.1 30
[R2-GigabitEthernet0/0/1]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 172.16.0.21 30

R3:

[R3]int l0
[R3-LoopBack0]ip add 172.16.224.2 32
[R3-LoopBack0]int l1
[R3-LoopBack1]ip add 172.16.64.1 19
[R3-LoopBack1]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 172.16.0.2 30
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 172.16.0.5 30

R4:

[R4]int l0
[R4-LoopBack0]ip add 172.16.224.3 32
[R4-LoopBack0]int l1
[R4-LoopBack1]ip add 172.16.96.1 19
[R4-LoopBack1]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 172.16.0.6 30
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 172.16.0.9 30

R5:

[R5]int l0
[R5-LoopBack0]ip add 172.16.224.4 32
[R5-LoopBack0]int l1
[R5-LoopBack1]ip add 172.16.128.1 19
[R5-LoopBack1]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 172.16.0.22 30
[R5-GigabitEthernet0/0/0]int g0/0/1
[R5-GigabitEthernet0/0/1]ip add 172.16.0.17 30

R6:

[R6]int l0
[R6-LoopBack0]ip add 172.16.224.5 32
[R6-LoopBack0]int l1
[R6-LoopBack1]ip add 172.16.160.1 19
[R6-LoopBack1]int g0/0/0
[R6-GigabitEthernet0/0/0]ip add 172.16.0.18 30
[R6-GigabitEthernet0/0/0]int g0/0/1
[R6-GigabitEthernet0/0/1]ip add 172.16.0.13 30

R7:

[R7]int l0
[R7-LoopBack0]ip add 172.16.224.6 32
[R7-LoopBack0]int l1
[R7-LoopBack1]ip add 172.16.192.1 19
[R7-LoopBack1]int g0/0/2
[R7-GigabitEthernet0/0/2]ip add 172.16.0.10 30 
[R7-GigabitEthernet0/0/2]int g0/0/0
[R7-GigabitEthernet0/0/0]ip add 172.16.0.14 30
[R7-GigabitEthernet0/0/0]int g0/0/1
[R7-GigabitEthernet0/0/1]ip add 78.1.1.1 24

R8:

[R8]int l0
[R8-LoopBack0]ip add 8.8.8.8 24
[R8-LoopBack0]int g0/0/0
[R8-GigabitEthernet0/0/0]ip add 78.1.1.2 24

2、OSPF的配置

指令如下:

R2:

[R2]ospf 1
[R2-ospf-1]
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R3:

[R3]ospf 1 
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R4:

[R4]ospf 1
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R5:

[R5]ospf 1
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R6:

[R6]ospf 1
[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R7:

[R7]ospf 1
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

3、BGP配置

指令如下:

R1:

[R1]bgp 1
[R1-bgp]router-id 1.1.1.1
[R1-bgp]peer 12.1.1.2 as-number 2

R2:

[R2]bgp 64512
[R2-bgp]router-id 2.2.2.2
[R2-bgp]confederation id 2
[R2-bgp]peer 12.1.1.1 as-number 1
[R2-bgp]peer 172.16.224.2 as-number 64512
[R2-bgp]peer 172.16.224.2 connect-interface LoopBack 0
[R2-bgp]confederation peer-as 64513
[R2-bgp]peer 172.16.224.4 as-number 64513
[R2-bgp]peer 172.16.224.4 connect-interface LoopBack 0
[R2-bgp]peer 172.16.224.4 ebgp-max-hop 2

R3:

[R3]bgp 64512
[R3-bgp]router-id 3.3.3.3
[R3-bgp]confederation id 2
[R3-bgp]peer 172.16.224.1 as-number 64512	
[R3-bgp]peer 172.16.224.1 connect-interface LoopBack 0
[R3-bgp]peer 172.16.224.3 as-number 64512
[R3-bgp]peer 172.16.224.3 connect-interface LoopBack 0

R4:

[R4]bgp 64512
[R4-bgp]router-id 4.4.4.4
[R4-bgp]confederation id 2
[R4-bgp]peer 172.16.224.2 as-number 64512
[R4-bgp]peer 172.16.224.2 connect-interface LoopBack 0
[R4-bgp]confederation peer-as 64513
[R4-bgp]peer 172.16.224.6 as-number 64513
[R4-bgp]peer 172.16.224.6 connect-interface LoopBack 0
[R4-bgp]peer 172.16.224.6 ebgp-max-hop 2

R5:

[R5]bgp 64513
[R5-bgp]router-id 5.5.5.5	
[R5-bgp]confederation id 2
[R5-bgp]peer 172.16.224.5 as-number 64513
[R5-bgp]peer 172.16.224.5 connect-interface LoopBack 0
[R5-bgp]confederation peer-as 64512
[R5-bgp]peer 172.16.224.1 as-number 64512
[R5-bgp]peer 172.16.224.1 connect-interface LoopBack 0
[R5-bgp]peer 172.16.224.1 ebgp-max-hop 2

R6:

[R6]bgp 64513
[R6-bgp]router-id 6.6.6.6
[R6-bgp]confederation id 2
[R6-bgp]peer 172.16.224.4 as-number 64513
[R6-bgp]peer 172.16.224.4 connect-interface LoopBack 0
[R6-bgp]peer 172.16.224.6 as-number 64513
[R6-bgp]peer 172.16.224.6 connect-interface LoopBack 0

R7:

[R7]bgp 64513
[R7-bgp]router-id 7.7.7.7
[R7-bgp]confederation id 2
[R7-bgp]peer 172.16.224.5 as-number 64513
[R7-bgp]peer 172.16.224.5 connect-interface LoopBack 0
[R7-bgp]peer 78.1.1.2 as-number 3
[R7-bgp]confederation peer-as 64512
[R7-bgp]peer 172.16.224.3 as-number 64512
[R7-bgp]peer 172.16.224.3 connect-interface LoopBack 0
[R7-bgp]peer 172.16.224.3 ebgp-max-hop 2

R8:

[R8]bgp 3
[R8-bgp]router-id 8.8.8.8
[R8-bgp]peer 78.1.1.1 as-number 2

4、BGP宣告

注意:

        宣告选择汇总宣告或者分开一条一条地宣告

指令如下:

R1:

[R1]bgp 1
[R1-bgp]network 1.1.1.0 24

R2:

[R2]bgp 64512
[R2-bgp]network 172.16.32.0 19

R3:

[R3]bgp 64512
[R3-bgp]network 172.16.64.0 19

R4:

[R4]bgp 64512
[R4-bgp]network 172.16.96.0 19

R5:

[R5]bgp 64513
[R5-bgp]network 172.16.128.0 19

R6:

[R6]bgp 64513
[R6-bgp]network 172.16.160.0 19

R7:

[R7]bgp 64513
[R7-bgp]network 172.16.192.0 19

R8:

[R8]bgp 3
[R8-bgp]network 8.8.8.0 24

5、测试如下:

R1:

BGP小综合_第2张图片

BGP小综合_第3张图片 

BGP小综合_第4张图片 BGP小综合_第5张图片

BGP小综合_第6张图片 

BGP小综合_第7张图片 

BGP小综合_第8张图片 

BGP小综合_第9张图片

 

 

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