HCIP--BGP

1.实验要求

2.拓扑搭建及ip地址配置 

 

 。。。。。

3.在r2，r3，r4上使用ospf宣告。

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.1 0.0.0.0

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1-area-0.0.0.1]area 0
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 23.1.1.2 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0


[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]network 34.1.1.2 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0

 

 4，bgp邻居建立

 由于r4和r5之间有两条网线所以需要写静态路由。

[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.1.1.2 as-number 2


[r2]bgp 2
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 12.1.1.1 as-number 1
[r2-bgp]peer 3.3.3.3 as-number 2
[r2-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[r2-bgp]peer 4.4.4.4 as-number 2
[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0

[r3]bgp 2
[r3-bgp]peer 2.2.2.2 as-number 2
[r3-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[r3-bgp]peer 4.4.4.4 as-number 2
[r3-bgp]peer 4.4.4.4 connect-interface LoopBack 0


[r4]ip route-static 5.5.5.5 24 45.1.1.2
[r4]ip route-static 5.5.5.5 24 46.1.1.2

[r4]bgp 2
[r4-bgp]peer 2.2.2.2 as-number 2
[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[r4-bgp]peer 3.3.3.3 as-number 2
[r4-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[r4-bgp]peer 5.5.5.5 as-number 3
[r4-bgp]peer 5.5.5.5 connect-interface LoopBack 0
[r4-bgp]peer 5.5.5.5 ebgp-max-hop 2

[r5]ip route-static 4.4.4.4 24 45.1.1.1
[r5]ip route-static 4.4.4.4 24 46.1.1.1
[r5]bgp 3
[r5-bgp]peer 4.4.4.4 as-number 2
[r5-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[r5-bgp]peer 4.4.4.4 ebgp-max-hop 2

 

 

 

 5.宣告各个环回接口和修改下一跳

[r1-bgp]network 1.1.1.0 24

[r2-bgp]network 2.2.2.0 24

[r3-bgp]network 3.3.3.0 24

[r4-bgp]network 4.4.4.0 24

[r5-bgp]network 5.5.5.0 24


[r2-bgp]peer 3.3.3.3 next-hop-local
[r4-bgp]peer 3.3.3.3 next-hop-local
[r4-bgp]peer 2.2.2.2 next-hop-local

 

 6.测试