[网络协议]BGP.2

一、实验内容

二、拓扑图

三、实施

（1）底层—所有节点IP配置

R1:
[R1-GigabitEthernet0/0/1]ip address 12.1.1.1 24
[R1-LoopBack0]ip address 192.168.1.1 24
[R1-LoopBack1]ip address 10.1.1.1 24

==================================================
R2:
[R2-GigabitEthernet0/0/0]ip address 12.1.1.2 24
[R2-LoopBack0]ip address 172.168.2.1 24
[R2-GigabitEthernet0/0/1]ip address 172.16.0.1 30
[R2-GigabitEthernet0/0/2]ip address 172.16.0.9 30

==================================================
R3:
[R3-LoopBack0]ip address 172.16.3.1 24
[R3-GigabitEthernet0/0/0]ip address 172.16.0.2 30
[R3-GigabitEthernet0/0/1]ip address 172.16.0.5 30

==================================================
R4:
[R4-LoopBack0]ip address 172.16.4.1 24
[R4-GigabitEthernet0/0/0]ip address 172.16.0.6 30
[R4-GigabitEthernet0/0/2]ip address 172.16.0.21 30

==================================================
R5:
[R5-LoopBack0]ip address 172.16.5.1 24
[R5-GigabitEthernet0/0/2]ip address 172.16.0.10 30
[R5-GigabitEthernet0/0/1]ip address 172.16.0.13 30

==================================================
R6:
[R6-LoopBack0]ip address 172.16.6.1 24
[R6-GigabitEthernet0/0/0]ip address 172.16.0.14 30
[R6-GigabitEthernet0/0/1]ip address 172.16.0.17 30
==================================================
R7:
[R7-GigabitEthernet0/0/1]ip address 78.1.1.1 24
[R7-LoopBack0]ip address 172.16.7.1 24
[R7-GigabitEthernet0/0/0]ip address 172.16.0.18 30
[R7-GigabitEthernet0/0/2]ip address 172.16.0.22 30

==================================================
R8:
[R8-LoopBack0]ip address 192.168.2.1 24
[R8-LoopBack1]ip address 10.1.2.1 24
[R8-GigabitEthernet0/0/0]ip address 78.1.1.2 24

相邻路由测试（ping）

（2）路由

R2\R3\R4\R5\R6\R7之间（IGP)

R2:
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

==============================================
R3:
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

==============================================
R4:
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
==============================================
R5:
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

==============================================
R6:
[R6]ospf 1 router-id 6.6.6.6
[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255                        
==============================================
R7:
[R7]ospf 1 router-id 7.7.7.7
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

BGP

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]confederation peer-as 64513
[R2-bgp]peer 12.1.1.1 as-number 1
[R2-bgp]peer 172.16.3.1 as-number 64512
[R2-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[R2-bgp]peer 172.16.5.1 as-number 64513
[R2-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[R2-bgp]peer 172.16.5.1 ebgp-max-hop 2

==============================================
R3:
[R3]bgp 64512
[R3-bgp]router-id 3.3.3.3
[R3-bgp]confederation id 2
[R3-bgp]peer 172.16.2.1 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

==============================================
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-number 64512
[R4-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[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 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-number 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-number 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-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

==============================================
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-number 64513
[R7-bgp]peer 172.16.6.1 connect-interface LoopBack 0
[R7-bgp]peer 172.16.4.1 as-number 64512 
[R7-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[R7-bgp]peer 172.16.4.1 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

宣告路由

R1:
[R1-bgp]network 10.1.1.0 24

==============================================
R2:
[R2-bgp]peer 172.16.3.1 next-hop-local
[R2-bgp]peer 172.16.5.1 next-hop-local
[R2]ip route-static 172.16.0.0 21 NULL 0
[R2-bgp]network 172.16.0.0 21

==============================================
R3:
[R3-bgp]peer 172.16.2.1 reflect-client 

==============================================
R4:

==============================================
R5:

==============================================
R6:
[R6-bgp]peer 172.16.5.1 reflect-client 

==============================================
R7:
[R7-bgp]peer 172.16.6.1 next-hop-local
[R7-bgp]peer 172.16.4.1 next-hop-local
[R7]ip route-static 172.16.0.0 21 NULL 0
[R7-bgp]network 172.16.0.0 21

==============================================
R8:
[R8-bgp]network 10.1.2.0 24

R1和R2上两个环回互通

R1:
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]ip address 10.1.3.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre 
[R1-Tunnel0/0/0]source 10.1.1.1
[R1-Tunnel0/0/0]description 10.1.2.1
[R1]ip route-static 192.168.2.0 Tunnel 0/0/0

==========================================
R8：
[R8]interface Tunnel 0/0/0
[R8-Tunnel0/0/0]ip address 10.1.3.2 24
[R8-Tunnel0/0/0]tunnel-protocol gre 
[R8-Tunnel0/0/0]source 10.1.2.1
[R8-Tunnel0/0/0]description 10.1.1.1
[R8]ip route-static 192.168.1.0 24 Tunnel 0/0/0

==========================================