zy5.13

拓扑

 

r1

[r1]interface g0/0/0

[r1-GigabitEthernet0/0/0]ip address 12.0.0.1 24

[r1]interface LoopBack 0

[r1-LoopBack0]ip address 1.1.1.1 32

配置BGP

[r1]bgp 100

[r1-bgp]router-id 1.1.1.1

[r1-bgp]peer 12.0.0.2 as-number 200

[r1-bgp]network 1.1.1.1 32

 

r2

[r2]interface g 0/0/0

[r2-GigabitEthernet0/0/0]ip address 12.0.0.2 24

[r2]interface g0/0/1

[r2-GigabitEthernet0/0/1]ip address 23.0.0.2 24

[r2]interface LoopBack 0

[r2-LoopBack0]ip address 2.2.2.2 32

OSPF配置

[r2]ospf 1 router-id 2.2.2.2

[r2-ospf-1]area 0.0.0.0

[r2-ospf-1-area-0.0.0.0]network 23.0.0.0 0.0.0.255

[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0

[r2]bgp 200

[r2-bgp]router-id 2.2.2.2

[r2-bgp]peer 12.0.0.1 as-number 100

[r2-bgp]peer 3.3.3.3 as-number 200

[r2-bgp]import-route ospf 1

[r2-bgp]peer 3.3.3.3 connect-interface LoopBack0

[r2-bgp]peer 4.4.4.4 as-number 200

[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0

[r2-bgp]peer 3.3.3.3 next-hop-local

[r2-bgp]peer 4.4.4.4 next-hop-local

[r2-bgp]import-route ospf 1

 

r3

[r3]interface g0/0/0

[r3-GigabitEthernet0/0/0]ip address 23.0.0.3 24

[r3]interface g0/0/1

[r3-GigabitEthernet0/0/1]ip address 34.0.0.3 24

[r3]interface LoopBack 0

[r3-LoopBack0]ip address 3.3.3.3 32

OSPF配置

[r3]ospf 1 router-id 3.3.3.3

[r3-ospf-1]area 0.0.0.0

[r3-ospf-1-area-0.0.0.0]network 23.0.0.0 0.0.0.255

[r3-ospf-1-area-0.0.0.0]network 32.0.0.0 0.0.0.255

[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0

[r3]bgp 200

[r3-bgp]router-id 3.3.3.3

[r3-bgp]peer 2.2.2.2 as-number 200

[r3-bgp]peer 2.2.2.2 connect-interface LoopBack 0

[r3-bgp]peer 4.4.4.4 as-number 200

[r3-bgp]peer 4.4.4.4 connect-interface LoopBack 0

 

r4

[r4]interface g0/0/0

[r4-GigabitEthernet0/0/0]ip address 34.0.0.4 24

[r4]interface g0/0/1

[r4-GigabitEthernet0/0/1]ip address 45.0.0.4 24

[r4]interface LoopBack 0

[r4-LoopBack0]ip address 4.4.4.4 32

OSPF配置

[r4]ospf 1 router-id 4.4.4.4

[r4-ospf-1]area 0.0.0.0

[r4-ospf-1-area-0.0.0.0]network 34.0.0.0 0.0.0.255

[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0

[r4]bgp 200

[r4-bgp]router-id 4.4.4.4

[r4-bgp]ip route-static 5.5.5.5 32 45.0.0.5

[r4-bgp]peer 2.2.2.2 as-number 200

[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0

[r4-bgp]peer 3.3.3.3 as-number 200

[r4-bgp]peer 3.3.3.3 connect-interface LoopBack 0

[r4-bgp]peer 5.5.5.5 as-number 300

[r4-bgp]peer 5.5.5.5 connect-interface LoopBack 0

[r4-bgp]peer 5.5.5.5 ebgp-max-hop 2

 

r5 

[r5]interface g0/0/0

[r5-GigabitEthernet0/0/0]ip address 45.0.0.5 24

[r5]interface LoopBack 0

[r5-LoopBack0]ip address 5.5.5.5 32

BGP配置

[r5]bgp 300

[r5-bgp]router-id 5.5.5.5

[r5-bgp]ip route-static 4.4.4.4 32 45.0.0.4

[r5-bgp]peer 4.4.4.4 as-number 200

[r5-bgp]peer 4.4.4.4 connect-interface LoopBack 0

[r5-bgp]peer 4.4.4.4 ebgp-max-hop 2

[r5-bgp]network 5.5.5.5 32

 

ping.2.2.2.2

ping3.3.3.3不成功