BGP联邦实验

一.需求

1.AS1存在两个环回,一个地址为192.168.1.0/24,该地址不能再任何协议中宣告

AS3存在两个环回,一个地址为192.168.2.0/24,该地址不能再任何协议中宣告

AS1还有一个环回地址为10.1.1.0/24,AS3另一个环回地址是11.1.1.0/24

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

3.AS间的骨干链路Ip地址随意分配

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

完成上图内容,使用联邦+反射器

二.需求分析

1.AS1 和 AS3 各有一个特定环回地址禁止宣告,另一个环回地址需实现互通

2.AS2 需使用 172.16.0.0/16 进行 IP 地址规划​

3.AS 间骨干链路 IP 自主分配,保证链路互联互通且地址不冲突。​

4.利用 BGP 协议,通过联邦和反射器实现全网设备环回地址相互访问。​

5.减少路由条目数量,通过合适的 BGP 机制和策略,避免网络出现环路。

三.配置

R1

复制代码
[r1]interface GigabitEthernet 0/0/0
[r1-GigabitEthernet0/0/0]ip address 172.16.16.1 30
[r1]interface LoopBack 0    
[r1-LoopBack0]ip address 192.168.1.1 24
[r1]interface LoopBack 1
[r1-LoopBack1]ip address 10.1.1.1 24
[r1]bgp 1
[r1-bgp]router-id 10.1.1.1 
[r1-bgp]peer 172.16.16.2 as-number 2
[r1-bgp]network 10.1.1.0 24
[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 192.168.3.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre 
[r1-Tunnel0/0/0]source 10.1.1.1
[r1-Tunnel0/0/0]destination 11.1.1.1
[r1]ip route-static 192.168.2.0 24 Tunnel 0/0/0

R2

复制代码
[r2]interface GigabitEthernet 0/0/0
[r2-GigabitEthernet0/0/0]ip address 172.16.16.2 30
[r2]interface GigabitEthernet 0/0/1
[r2-GigabitEthernet0/0/1]ip address 172.16.19.1 30
[r2]interface GigabitEthernet 0/0/2
[r2-GigabitEthernet0/0/2]ip address 172.16.17.1 30    
[r2]interface LoopBack 0
[r2-LoopBack0]ip address 172.16.2.1 24
[r2]ospf 1 router-id 2.2.2.2    
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 172.16.2.0 0.0.0.255    
[r2-ospf-1-area-0.0.0.0]network 172.16.17.1 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 172.16.19.1 0.0.0.0
[r2]bgp 64512
[r2-bgp]router-id 172.16.2.1
[r2-bgp]peer 172.16.16.1 as-number 1
[r2-bgp]peer 172.16.3.1 as-number 64512
[r2-bgp]confederation id 2
[r2-bgp]peer 172.16.3.1 as-number 64512
[r2-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.3.1 next-hop-local
[r2-bgp]confederation peer-as 64513
[r2-bgp]peer 172.16.5.1 as-number 64513
[r2-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.3.1 next-hop-local 
[r2-bgp]peer 172.16.5.1 ebgp-max-hop
[r2-bgp]network 172.16.2.0 24
[r2]ip route-static 172.16.0.0 21 NULL 0
[r2-bgp]network 172.16.0.0 21

R3

复制代码
[r3]interface GigabitEthernet 0/0/0
[r3-GigabitEthernet0/0/0]ip address 172.16.17.2 30
[r3]interface GigabitEthernet 0/0/1
[r3-GigabitEthernet0/0/1]ip address 172.16.18.1 30    
[r3]interface LoopBack 0
[r3-LoopBack0]ip address 172.16.3.1 24
[r3]ospf 1 router-id 3.3.3.3    
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 172.16.17.2 0.0.0.0    
[r3-ospf-1-area-0.0.0.0]network 172.16.3.0 0.0 
[r3-ospf-1-area-0.0.0.0]network 172.16.3.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 172.16.18.1 0.0.0.0
[r3]bgp 64512
[r3-bgp]router-id 172.16.3.1
[r3-bgp]confederation id 2
[r3-bgp]peer 172.16.2.1 as-number 64512
[r3-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[r3-bgp]peer 172.16.4.1 as-number 64512  
[r3-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[r3-bgp]network 172.16.3.0 24
[r3-bgp]peer 172.16.4.1 reflect-client

R4

复制代码
[r4]interface GigabitEthernet 0/0/0    
[r4-GigabitEthernet0/0/0]ip address 172.16.18.2 30
[r4]interface GigabitEthernet 0/0/1
[r4-GigabitEthernet0/0/1]ip address 172.16.22.1 30
[r4]interface LoopBack 0    
[r4-LoopBack0]ip address 172.16.4.1 24
[r4]ospf 1 router-id 4.4.4.4    
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]network 172.16.4.0 0.0.0.255
[r4-ospf-1-area-0.0.0.0]network 172.16.22.1 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 172.16.18.2 0.0.0.0
[r4]bgp 64512
[r4-bgp]router-id 172.16.4.1    
[r4-bgp]confederation id 2
[r4-bgp]peer 172.16.3.1 as-number 64512[r4-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[r4-bgp]confederation peer-as 64513
[r4-bgp]peer 172.16.7.1 as-number 64513
[r4-bgp]peer 172.16.7.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.7.1 ebgp-max-hop
[r4-bgp]network 172.16.4.0 24

R5

复制代码
[r5]interface GigabitEthernet 0/0/0
[r5-GigabitEthernet0/0/0]ip address 172.16.19.2 30
[r5]interface GigabitEthernet 0/0/1
[r5-GigabitEthernet0/0/1]ip address 172.16.20.1 30
[r5]interface LoopBack 0    
[r5-LoopBack0]ip address 172.16.5.1 24
[r5]ospf 1 router-id 5.5.5.5    
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 172.16.5.0 0.0.0.255
[r5-ospf-1-area-0.0.0.0]network 172.16.20.1 0.0.0.0
[r5-ospf-1-area-0.0.0.0]network 172.16.19.2 0.0.0.0
[r5]bgp 64513
[r5-bgp]router-id 172.16.5.1    
[r5-bgp]confederation id 2
[r5-bgp]confederation peer-as 64512
[r5-bgp]peer 172.16.2.1 as-number 64512
[r5-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[r5-bgp]peer 172.16.2.1 ebgp-max-hop
[r5-bgp]peer 172.16.6.1 as-number 64513    
[r5-bgp]peer 172.16.6.1 connect-interface LoopBack 0
[r5-bgp]network 172.16.5.0 24

R6

复制代码
[r6]interface GigabitEthernet 0/0/0
[r6-GigabitEthernet0/0/0]ip address 172.16.20.2 30
[r6]interface GigabitEthernet 0/0/1
[r6-GigabitEthernet0/0/1]ip address 172.16.21.1 30    
[r6]interface LoopBack 0
[r6-LoopBack0]ip address 172.16.6.1 24
[r6]ospf 1 router-id 6.6.6.6    
[r6-ospf-1]area 0    
[r6-ospf-1-area-0.0.0.0]network 172.16.6.0 0.0.0.255
[r6-ospf-1-area-0.0.0.0]network 172.16.21.1 0.0.0.0
[r6-ospf-1-area-0.0.0.0]network 172.16.20.2 0.0.0.0
[r6]bgp 64513
[r6-bgp]router-id 172.16.6.1
[r6-bgp]confederation id 2-
[r6-bgp]peer 172.16.5.1 as-number 64513
[r6-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r6-bgp]peer 172.16.7.1 as-number 64513
[r6-bgp]peer 172.16.7.1 connect-interface LoopBack 0
[r6-bgp]network 172.16.6.0 24-
[r6-bgp]peer 172.16.7.1 reflect-client

R7

复制代码
[r7]interface GigabitEthernet 0/0/0
[r7-GigabitEthernet0/0/0]ip address 172.16.22.2 30
[r7]interface GigabitEthernet 0/0/1
[r7-GigabitEthernet0/0/1]ip address 172.16.21.2 30
[r7]interface GigabitEthernet 0/0/2    
[r7-GigabitEthernet0/0/2]ip address 172.16.23.1 30
[r7]interface LoopBack 0
[r7-LoopBack0]ip address 172.16.7.1 24
[r7]ospf 1 router-id 7.7.7.7    
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]network 172.16.7.0 0.0.0.255
[r7-ospf-1-area-0.0.0.0]network 172.16.21.2 0.0.0.0
[r7-ospf-1-area-0.0.0.0]network 172.16.22.2 0.0.0.0
[r7]bgp 64513
[r7-bgp]router-id 172.16.7.1    
[r7-bgp]confederation id 2
[r7-bgp]peer 172.16.23.2 as-number 3
[r7-bgp]confederation peer-as 64512
[r7-bgp]peer 172.16.4.1 as-number 64512
[r7-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.6.1 next-hop-local
[r7-bgp]peer 172.16.4.1 ebgp-max-hop
[r7-bgp]peer 172.16.6.1 as-number 64513
[r7-bgp]peer 172.16.6.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.6.1 next-hop-local
[r7-bgp]network 172.16.7.0 24
[r7]ip route-static 172.16.0.0 21 NULL 0
[r7-bgp]network 172.16.0.0 21

R8

复制代码
[r8]interface GigabitEthernet 0/0/0    
[r8-GigabitEthernet0/0/0]ip address 172.16.23.2 30
[r8]interface LoopBack 0
[r8-LoopBack0]ip address 192.16.2.1 24
[r8]interface LoopBack 1
[r8-LoopBack1]ip address 11.1.1.1 24
[r8]bgp 3
[r8-bgp]router-id 11.1.1.1    
[r8-bgp]peer 172.16.23.1 as-number 2
[r8-bgp]network 11.1.1.0 24
[r8-bgp]network 192.168.2.0 24
[r8]interface Tunnel 0/0/0
[r8-Tunnel0/0/0]ip address 192.168.3.2 24    
[r8-Tunnel0/0/0]tunnel-protocol gre 
[r8-Tunnel0/0/0]source 11.1.1.1
[r8-Tunnel0/0/0]destination 10.1.1.1
[r8]ip route-static 192.168.1.0 24 Tunnel 0/0/0

四.检验

r1环回ping r8环回

复制代码
[r1]ping -a 192.168.1.1 192.168.2.1
  PING 192.168.2.1 56 data bytes=56 Sequence=1 ttl=255 time=70 ms
    Reply from 192.168.2.1: bytes=56 Sequence=2 ttl=255 time=60 ms
    Reply from 192.168.2.1: bytes=56 Sequence=3 ttl=255 time=50 ms
    Reply from 192.168.2.1: bytes=56 Sequence=4 ttl=255 time=70 ms
    Reply from 192.168.2.1: bytes=56 Sequence=5 ttl=255 time=40 ms

--- 192.168.2.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 40/58/70 ms

所有设备的环回互相访问

复制代码
[r6]ping -a 172.16.6.1 10.1.1.1
  PING 10.1.1.1: 56 data bytes=56 Sequence=1 ttl=253 time=40 ms
    Reply from 10.1.1.1: bytes=56 Sequence=2 ttl=253 time=30 ms
    Reply from 10.1.1.1: bytes=56 Sequence=3 ttl=253 time=40 ms
    Reply from 10.1.1.1: bytes=56 Sequence=4 ttl=253 time=50 ms
    Reply from 10.1.1.1: bytes=56 Sequence=5 ttl=253 time=30 ms

--- 10.1.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 30/38/50 ms

[r6]ping -a 172.16.6.1 11.1.1.1
  PING 11.1.1.1: 56 data bytes=56 Sequence=1 ttl=254 time=30 ms
    Reply from 11.1.1.1: bytes=56 Sequence=2 ttl=254 time=30 ms
    Reply from 11.1.1.1: bytes=56 Sequence=3 ttl=254 time=30 ms
    Reply from 11.1.1.1: bytes=56 Sequence=4 ttl=254 time=30 ms
    Reply from 11.1.1.1: bytes=56 Sequence=5 ttl=254 time=40 ms

--- 11.1.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 30/32/40 ms

[r6]ping -a 172.16.6.1 172.16.2.1
  PING 172.16.2.1: 56 data bytes=56 Sequence=1 ttl=254 time=30 ms
    Reply from 172.16.2.1: bytes=56 Sequence=2 ttl=254 time=50 ms
    Reply from 172.16.2.1: bytes=56 Sequence=3 ttl=254 time=30 ms
    Reply from 172.16.2.1: bytes=56 Sequence=4 ttl=254 time=50 ms
    Reply from 172.16.2.1: bytes=56 Sequence=5 ttl=254 time=20 ms

--- 172.16.2.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 20/36/50 ms

[r6]ping -a 172.16.6.1 172.16.3.1
  PING 172.16.3.1: 56 data bytes=56 Sequence=1 ttl=253 time=50 ms
    Reply from 172.16.3.1: bytes=56 Sequence=2 ttl=253 time=40 ms
    Reply from 172.16.3.1: bytes=56 Sequence=3 ttl=253 time=40 ms
    Reply from 172.16.3.1: bytes=56 Sequence=4 ttl=253 time=40 ms
    Reply from 172.16.3.1: bytes=56 Sequence=5 ttl=253 time=30 ms

--- 172.16.3.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 30/40/50 ms

[r6]ping -a 172.16.6.1 172.16.4.1
  PING 172.16.4.1: 56 data bytes=56 Sequence=1 ttl=254 time=20 ms
    Reply from 172.16.4.1: bytes=56 Sequence=2 ttl=254 time=30 ms
    Reply from 172.16.4.1: bytes=56 Sequence=3 ttl=254 time=30 ms
    Reply from 172.16.4.1: bytes=56 Sequence=4 ttl=254 time=40 ms
    Reply from 172.16.4.1: bytes=56 Sequence=5 ttl=254 time=40 ms

--- 172.16.4.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 20/32/40 ms

[r6]ping -a 172.16.6.1 172.16.5.1
  PING 172.16.5.1: 56 data bytes=56 Sequence=1 ttl=255 time=20 ms
    Reply from 172.16.5.1: bytes=56 Sequence=2 ttl=255 time=10 ms
    Reply from 172.16.5.1: bytes=56 Sequence=3 ttl=255 time=30 ms
    Reply from 172.16.5.1: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 172.16.5.1: bytes=56 Sequence=5 ttl=255 time=20 ms

--- 172.16.5.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 10/22/30 ms

[r6]ping -a 172.16.6.1 172.16.5.1
  PING 172.16.5.1: 56 data bytes=56 Sequence=1 ttl=255 time=20 ms
    Reply from 172.16.5.1: bytes=56 Sequence=2 ttl=255 time=10 ms
    Reply from 172.16.5.1: bytes=56 Sequence=3 ttl=255 time=30 ms
    Reply from 172.16.5.1: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 172.16.5.1: bytes=56 Sequence=5 ttl=255 time=20 ms

--- 172.16.5.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 10/22/30 ms

[r6]ping -a 172.16.6.1 172.16.6.1
  PING 172.16.6.1: 56 data bytes=56 Sequence=1 ttl=255 time=1 ms
    Reply from 172.16.6.1: bytes=56 Sequence=2 ttl=255 time=1 ms
    Reply from 172.16.6.1: bytes=56 Sequence=3 ttl=255 time=1 ms
    Reply from 172.16.6.1: bytes=56 Sequence=4 ttl=255 time=1 ms
    Reply from 172.16.6.1: bytes=56 Sequence=5 ttl=255 time=1 ms

--- 172.16.6.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round -trip min/avg/max = 1/1/1 ms
相关推荐
敲敲敲-敲代码14 分钟前
【ArcGIS10.2】网络数据集构建---最短路径分析
网络·arcgis
cliffordl2 小时前
MCP 传输机制(Streamable HTTP)
网络·网络协议·http
晨曦丿2 小时前
双11服务器
linux·服务器·网络
galaxylove2 小时前
Gartner发布最新指南:企业要构建防御性强且敏捷的网络安全计划以平衡安全保障与业务运营
网络·安全·web安全
漫谈网络2 小时前
WebSocket扫盲
网络·websocket·网络协议
CH_Qing4 小时前
【udev】关于/dev 设备节点的生成 &udev
linux·前端·网络
妮妮喔妮5 小时前
HTTP中常见的Content-Type
网络·网络协议·http
木鱼时刻5 小时前
网络基础知识与代理配置
网络
入眼皆含月5 小时前
Openssl升级
网络
数通Dinner5 小时前
异步Websocket构建聊天室
运维·网络·websocket·网络协议·信息与通信