HCIP——BGP综合实验

BGP综合实验

  • 一、实验拓扑
  • 二、实验要求
  • 三、实验步骤
    • 1、配置接口IP地址与环回地址
    • 2、AS2配置OSPF
    • 3、配置BGP,建立对等体
    • 4、发布路由
    • 5、配置路由反射器
    • 6、做空接口、汇总以及宣告
    • 7、建立GRE隧道
    • 8、查看BGP路由表
    • 9、测试

一、实验拓扑

HCIP——BGP综合实验_第1张图片

二、实验要求

  • 1,AS1存在两个环回,一个地址为192.168.1.0/24该地址不能在任何协议中宣告,AS3中存在俩个环回,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互相通讯
  • 2,整个AS2的IP地址为172.16.0.0/16,请合理划分
  • 3,AS间的骨干链路IP地址随意定制
  • 4,使用BGP协议让整个网络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

HCIP——BGP综合实验_第2张图片
划分AS2网段:

172.16.0.0/16
	172.16.0.0/24
		172.16.1.0/24---MA
			172.16.1.0/29
			172.16.1.8/29
			172.16.1.24/29
			172.16.1.32/29
			172.16.1.40/29
			172.16.1.48/29
			172.16.1.56/29
R2:172.16.2.0/24---P2P
R3:172.16.3.0/24---P2P
R4:172.16.4.0/24
R5:172.16.5.0/24
R6:172.16.6.0/24

三、实验步骤

1、配置接口IP地址与环回地址

R1:

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip a 12.0.0.1 24
[r1-GigabitEthernet0/0/0]int lo0
[r1-LoopBack0]ip a 192.168.1.1 24
[r1-LoopBack0]int lo1
[r1-LoopBack1]ip a 10.0.0.1 24

R2:

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip a 12.0.0.2 24
[r2-GigabitEthernet0/0/0]int lo0
[r2-LoopBack0]ip a 172.16.2.1 24
[r2]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip a 172.16.1.1 29
[r2-GigabitEthernet0/0/1]int g0/0/2
[r2-GigabitEthernet0/0/2]ip a 172.16.1.9 29

R3:

[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip a 172.16.1.2 29
[r3-GigabitEthernet0/0/0]int lo0
[r3-LoopBack0]ip a 172.16.3.1 24
[r3-LoopBack0]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip a 172.16.1.17 29

R4:

[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip a 172.16.1.18 29
[r4-GigabitEthernet0/0/0]int g 0/0/1
[r4-GigabitEthernet0/0/1]ip a 172.16.1.25 29
[r4-GigabitEthernet0/0/1]int lo0
[r4-LoopBack0]ip a 172.16.4.1 24

R5:

[r5]int g 0/0/0
[r5-GigabitEthernet0/0/0]ip a 172.16.1.10 29
[r5-GigabitEthernet0/0/0]int g 0/0/1
[r5-GigabitEthernet0/0/1]ip a 172.16.1.133 29
[r5-GigabitEthernet0/0/1]int lo0
[r5-LoopBack0]ip a 172.16.5.1 24

R6:

[r6]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip a 172.16.1.34 29
[r6-GigabitEthernet0/0/0]int lo0
[r6-LoopBack0]ip a 172.16.6.1 24
[r6-LoopBack0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip a 172.16.1.41 29

R7:

[r7]int g0/0/0
[r7-GigabitEthernet0/0/0]ip a 172.16.1.42 29
[r7-GigabitEthernet0/0/0]int lo0
[r7-LoopBack0]ip a 172.16.7.1 24
[r7-LoopBack0]int g 0/0/1
[r7-GigabitEthernet0/0/1]ip a 172.16.1.26 29
[r7-GigabitEthernet0/0/1]int g 0/0/2
[r7-GigabitEthernet0/0/2]ip a 78.0.0.1 24

R8:

[r8]int g 0/0/0
[r8-GigabitEthernet0/0/0]ip a 78.0.0.2 24
[r8-GigabitEthernet0/0/0]int lo0
[r8-LoopBack0]ip a 192.168.2.1 24
[r8-LoopBack0]int lo1
[r8-LoopBack1]ip a 11.0.0.1 24

2、AS2配置OSPF

R2:

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]a 0
[r2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R3:

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]a 0
[r3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R4:

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]a 0
[r4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R5:

[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]a 0
[r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R6:

[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]a 0
[r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

R7

[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]a 0
[r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

3、配置BGP,建立对等体

R1:

[r1]bgp 1 
[r1-bgp]route-select
[r1-bgp]router-id 1.1.1.1  
[r1-bgp]peer 12.0.0.2 as 2

R2:

[r2]bgp 64512  
[r2-bgp]route-select
[r2-bgp]router-id 2.2.2.2  
[r2-bgp]confederation id 2   
[r2-bgp]confederation peer-as 64513
[r2-bgp]peer 12.0.0.1 as 1  
[r2-bgp]peer 172.16.3.1 as 64512   
[r2-bgp]peer 172.16.3.1 connect-interface LoopBack 0   
[r2-bgp]peer 172.16.5.1 as 64513  
[r2-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.5.1 ebgp-max-hop 2  
[r2-bgp]peer 172.16.3.1 next-hop-local
[r2-bgp]peer 172.16.5.1 next-hop-local

R3:

[r3]bgp 64512
[r3-bgp]router-id 3.3.3.3 
[r3-bgp]confederation id 2
[r3-bgp]peer 172.16.2.1 as 64512  
[r3-bgp]peer 172.16.2.1 connect-interface LoopBack 0 
[r3-bgp]peer 172.16.4.1 as 64512 
[r3-bgp]peer 172.16.4.1 connect-interface LoopBack 0

R4:

[r4]bgp 64512
[r4-bgp]router-id 4.4.4.4 
[r4-bgp]confederation id 2
[r4-bgp]confederation peer-as 64513
[r4-bgp]peer 172.16.3.1 as 64512
[r4-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.7.1 as 64513
[r4-bgp]peer 172.16.7.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.7.1 ebgp-max-hop 2

R5:

[r5]bgp 64513
[r5-bgp]router-id 5.5.5.5  
[r5-bgp]confederation id 2
[r5-bgp]confederation peer-as 64512
[r5-bgp]peer 172.16.2.1 as 64512
[r5-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[r5-bgp]peer 172.16.2.1 ebgp-max-hop 2
[r5-bgp]peer 172.16.6.1 as 64513
[r5-bgp]peer 172.16.6.1 connect-interface LoopBack 0

R6:

[r6]bgp 64513
[r6-bgp]router-id 6.6.6.6   
[r6-bgp]confederation id 2
[r6-bgp]peer 172.16.5.1 as 64513  
[r6-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r6-bgp]peer 172.16.7.1 as 64513
[r6-bgp]peer 172.16.7.1 connect-interface LoopBack 0

R7:

[r7]bgp 64513
[r7-bgp]router-id 7.7.7.7   
[r7-bgp]confederation id 2
[r7-bgp]confederation peer-as 64512 
[r7-bgp]peer 172.16.6.1 as 64513
[r7-bgp]peer 172.16.6.1 connect-interface LoopBack 0  
[r7-bgp]peer 172.16.4.1 as 64512 
[r7-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.4.1 ebgp-max-hop 2
[r7-bgp]peer 78.0.0.2 as 3
[r7-bgp]peer 172.16.4.1 next-hop-local
[r7-bgp]peer 172.16.6.1 next-hop-local

R8:

[r8]bgp 3   
[r8-bgp]router-id 8.8.8.8    
[r8-bgp]peer 78.0.0.1 as 2

4、发布路由

R1:

[r1]bgp 1
[r1-bgp]network 10.0.0.0 24

R8:

[r8]bgp 3
[r8-bgp]network 11.0.0.0 24

5、配置路由反射器

R3:

[r3]bgp 64512    
[r3-bgp]peer 172.16.2.1 reflect-client 

R6:

[r6]bgp 64513
[r6-bgp]peer 172.16.7.1 reflect-client

6、做空接口、汇总以及宣告

R2:

[r2]ip route-static 172.16.0.0 21 NULL 0   
[r2]bgp 64512 
[r2-bgp]network 172.16.0.0 21

R7:

[r7]ip route-static 172.16.0.0 22 NULL 0 
[r7]bgp 64513

7、建立GRE隧道

R1:

[r1]int t0/0/0
[r1-Tunnel0/0/0]ip a 192.168.10.1 24  
[r1-Tunnel0/0/0]tunnel-protocol gre  
[r1-Tunnel0/0/0]source 10.0.0.1
[r1-Tunnel0/0/0]destination 11.0.0.1  
[r1]ip route-static 192.168.1.0 24 99.0.0.2

R8:

[r8]int t0/0/0
[r8-Tunnel0/0/0]ip a 192.168.10.2 24 
[r8-Tunnel0/0/0]tunnel-protocol gre  
[r8-Tunnel0/0/0]source 11.0.0.1
[r8-Tunnel0/0/0]destination 10.0.0.1
[r8]ip route-static 192.168.2.0 24 99.0.0.1

8、查看BGP路由表

R1:

[R1]display bgp routing-table 

 BGP Local router ID is 1.1.1.1 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 3
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>   10.1.1.0/24        0.0.0.0         0                     0      i
 *>   11.1.1.0/24        12.1.1.2                              0      2 3i
 *>   172.16.0.0/21      12.1.1.2        0                     0      2i
[R1]

R2:

<R2>display bgp routing-table 

 BGP Local router ID is 2.2.2.2 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 3
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>   10.1.1.0/24        12.1.1.1        0                     0      1i
 *>i  11.1.1.0/24        172.16.7.1      0          100        0      (64513) 3i
 *>   172.16.0.0/21      0.0.0.0         0                     0      i
<R2>

R3:

<R3>display bgp routing-table 

 BGP Local router ID is 3.3.3.3 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 5
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>i  10.1.1.0/24        172.16.2.1      0          100        0      1i
 *>i  11.1.1.0/24        172.16.7.1      0          100        0      (64513) 3i
 * i                     172.16.7.1      0          100        0      (64513) 3i
 *>i  172.16.0.0/21      172.16.2.1      0          100        0      i
 * i                     172.16.7.1      0          100        0      (64513)i
<R3>

R4:

<R4>display bgp routing-table 

 BGP Local router ID is 4.4.4.4 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 5
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>i  10.1.1.0/24        172.16.2.1      0          100        0      1i
 *>i  11.1.1.0/24        172.16.7.1      0          100        0      (64513) 3i
 * i                     172.16.7.1      0          100        0      (64513) 3i
 *>i  172.16.0.0/21      172.16.7.1      0          100        0      (64513)i
 * i                     172.16.2.1      0          100        0      i
<R4>

R5:

<R5>display bgp routing-table 

 BGP Local router ID is 5.5.5.5 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 4
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>i  10.1.1.0/24        172.16.2.1      0          100        0      (64512) 1i
 *>i  11.1.1.0/24        172.16.7.1      0          100        0      3i
 *>i  172.16.0.0/21      172.16.2.1      0          100        0      (64512)i
 * i                     172.16.7.1      0          100        0      i
<R5>

R6:

<R6>display bgp routing-table 

 BGP Local router ID is 6.6.6.6 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 5
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>i  10.1.1.0/24        172.16.2.1      0          100        0      (64512) 1i
 * i                     172.16.2.1      0          100        0      (64512) 1i
 *>i  11.1.1.0/24        172.16.7.1      0          100        0      3i
 *>i  172.16.0.0/21      172.16.7.1      0          100        0      i
 * i                     172.16.2.1      0          100        0      (64512)i
<R6>

R7:

<R7>display bgp routing-table 

 BGP Local router ID is 7.7.7.7 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 4
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>i  10.1.1.0/24        172.16.2.1      0          100        0      (64512) 1i
 * i                     172.16.2.1      0          100        0      (64512) 1i
 *>   11.1.1.0/24        78.1.1.1        0                     0      3i
 *>   172.16.0.0/21      0.0.0.0         0                     0      i
<R7>

R8:

<R8>display bgp routing-table 

 BGP Local router ID is 8.8.8.8 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete


 Total Number of Routes: 3
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn

 *>   10.1.1.0/24        78.1.1.2                              0      2 1i
 *>   11.1.1.0/24        0.0.0.0         0                     0      i
 *>   172.16.0.0/21      78.1.1.2        0                     0      2i
<R8>

9、测试

R1 ping R8:

[R1]ping -a 192.168.1.1 192.168.2.1
  PING 192.168.2.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.2.1: bytes=56 Sequence=1 ttl=255 time=110 ms
    Reply from 192.168.2.1: bytes=56 Sequence=2 ttl=255 time=50 ms
    Reply from 192.168.2.1: bytes=56 Sequence=3 ttl=255 time=40 ms
    Reply from 192.168.2.1: bytes=56 Sequence=4 ttl=255 time=40 ms
    Reply from 192.168.2.1: bytes=56 Sequence=5 ttl=255 time=30 ms

  --- 192.168.2.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 30/54/110 ms

[R1]

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