BGP第一天实验-优快云博客

本文介绍了一个包含五台路由器(R1至R5)的简单网络中BGP(Border Gateway Protocol)的基本配置示例。每台路由器配置了本地Loopback地址及与相邻路由器间的连接地址，并启用了BGP进程，指定了router-id并建立了邻居关系。通过此配置，可以实现不同自治系统间的路由信息交换。

## 标题
在这里插入图片描述
R1:

[Huawei]int l0
[Huawei-LoopBack0]ip ad 1.1.1.1 32
[Huawei-LoopBack0]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip ad 12.1.1.1 24
[Huawei]bgp 1
[Huawei-bgp]router-id 1.1.1.1
[Huawei-bgp]peer 12.1.1.2 a	
[Huawei-bgp]peer 12.1.1.2 as-number 2

R2:

[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip ad 12.1.1.2 24
[Huawei-GigabitEthernet0/0/0]int l0
[Huawei-LoopBack0]ip ad 2.2.2.2 32
[Huawei-LoopBack0]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip ad 192.168.2.1 24
[Huawei-GigabitEthernet0/0/2]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip ad 23.1.1.1 24
[Huawei]bgp 2	
[Huawei-bgp]router-id 2.2.2.2
[Huawei-bgp]peer 12.1.1.1 as-number 1
[Huawei-bgp]peer 3.3.3.3 as-number 2
[Huawei-bgp]peer 3.3.3.3 connect-interface l0
[Huawei-bgp]peer 3.3.3.3 next-hop-local
[Huawei-bgp]peer 4.4.4.4 as-number 2
[Huawei-bgp]peer 4.4.4.4 connect-interface l0

R3:

[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip ad 23.1.1.2 24
[Huawei-GigabitEthernet0/0/0]int l0
[Huawei-LoopBack0]ip ad 3.3.3.3 24
[Huawei-LoopBack0]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip ad 192.168.3.1 24
[Huawei-GigabitEthernet0/0/2]ip ad 34.1.1.1 24
[Huawei]bgp 2
[Huawei-bgp]router-id 3.3.3.3
[Huawei-bgp]peer  2.2.2.2 as-number 2
[Huawei-bgp]peer  2.2.2.2 connect-interface l0
[Huawei-bgp]peer 4.4.4.4 as-number 2
[Huawei-bgp]peer 4.4.4.4 connect-interface l0

R4:

[Huawei]int l0
[Huawei-LoopBack0]ip ad 4.4.4.4 24
[Huawei-LoopBack0]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip ad 34.1.1.2 24 
[Huawei-GigabitEthernet0/0/0]int g4/0/0
[Huawei-GigabitEthernet4/0/0]ip ad 192.168.4.1 24
[Huawei-GigabitEthernet4/0/0]
[Huawei-GigabitEthernet4/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip ad 45.1.1.1 24
[Huawei-GigabitEthernet0/0/1]
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip ad 54.1.1.1 24
[Huawei]ip route-static 5.5.5.5 32 45.1.1.2
[Huawei]ip route-static 5.5.5.5 32 54.1.1.2
[Huawei]bgp 2
[Huawei-bgp]router-id 4.4.4.4
[Huawei-bgp]peer 3.3.3.3 as-number 2
[Huawei-bgp]peer 3.3.3.3 connect-interface  l0
[Huawei-bgp]peer 5.5.5.5 as-number 3
[Huawei-bgp]peer  5.5.5.5 connect-interface l0
[Huawei-bgp]peer 5.5.5.5 ebgp-max-hop  2
[Huawei-bgp]peer 2.2.2.2 as-number 2
[Huawei-bgp]peer 2.2.2.2 connect-interface l0

R5:

[Huawei]int l0
[Huawei-LoopBack0]ip ad 5.5.5.5 24
[Huawei-LoopBack0]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip ad 192.168.5.1 24
[Huawei-GigabitEthernet0/0/2]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip ad 45.1.1.2 24
[Huawei-GigabitEthernet0/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip ad 54.1.1.2 24
[Huawei]ip route-static 4.4.4.4 32 45.1.1.1
[Huawei]ip route-static 4.4.4.4 32 54.1.1.1
[Huawei]bgp 3
[Huawei-bgp]router-id 5.5.5.5
[Huawei-bgp]peer  4.4.4.4 as-number 2
[Huawei-bgp]peer  4.4.4.4 connect-interface l0
[Huawei-bgp]peer 4.4.4.4 ebgp-max-hop 2