Hcip --- BGP comprehensive experiment

1、 Build topology

2、 The experimental requirements

One 、 According to the requirements , To the whole AS2 Of IP Address for subnet Division
    take 172.16.0.0/16 The network segment is divided into 172.16.0.0/24 Multiple network segments , Because in the actual project ,24 The network segment is more in line with the user network segment , Therefore, the network segment is divided into 172.16.0.0 /24 The subnet mask of is 24 The network segment , then 172.16.0.0/24 Multiple network segments are divided , take 172.16.0.0/24 The network segment of is used for P2P In the Internet , take 172.16.1.0/24 The network segment of is used for MA In the Internet , The loopback interface of each router uses a subnet mask of 24 The network segment .

 

  Two 、 Configure all routers IP Address

 

 

 

 

 

 

Show only R1

 

3、 ... and 、 stay AS 2 Enable ospf agreement  （ Show only r2 and r3）

 

 

  Four 、 Enable... For all devices BGP agreement , And establish peers

（ Show only r2）

 

Routing information

Declare ：

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

Modify the next jump ：

[r2-bgp]peer 172.16.3.1 next-hop-local
[r2-bgp]peer 172.16.5.1 next-hop-local
[r7-bgp]peer 172.16.4.1 next-hop-local
[r7-bgp]peer 172.16.6.1 next-hop-local

6、 ... and 、 Get rid of IBGP Horizontal segmentation between , Configure the routing reflector

 

 

7、 ... and 、 Short interface 、 Summarize and announce

 

 

8、 ... and 、 establish GRE Tunnel , To realize the communication of two loops