R1的配置
[H3C
]int g0
/0
[H3C
-GigabitEthernet0
/0]ip add
1.1.1.1 24
[H3C
-GigabitEthernet0
/0]int g0
/1
[H3C
-GigabitEthernet0
/1]ip add
1.1.2.1 24
[H3C
-GigabitEthernet0
/1]bgp
100
[H3C
-bgp
-default]peer
1.1.1.2 as
-number
200
[H3C
-bgp
-default]peer
1.1.2.3 as
-number
200
[H3C
-bgp
-default]address
-family ipv4
[H3C
-bgp
-default-ipv4
]peer
1.1.1.2 enable
[H3C
-bgp
-default-ipv4
]peer
1.1.2.3 enable
R2的配置
[H3C
]int g0
/0
[H3C
-GigabitEthernet0
/0]ip add
1.1.1.2 24
[H3C
-GigabitEthernet0
/0]int g0
/1
[H3C
-GigabitEthernet0
/1]ip add
1.1.3.2 24
[H3C
-GigabitEthernet0
/1]int g0
/2
[H3C
-GigabitEthernet0
/2]ip add
1.1.5.2 24
[H3C
-bgp
-default]int lo0
[H3C
-LoopBack0
]ip add
2.2.2.2 32
[H3C
-LoopBack0
]quit
[H3C
] ip route
-static 3.3.3.3 32 1.1.5.3
[H3C
]bgp
200
[H3C
-bgp
-default]peer
1.1.1.1 as
-number
100
[H3C
-bgp
-default]peer
3.3.3.3 as
-number
200
[H3C
-bgp
-default]peer
1.1.3.4 as
-number
300
[H3C
-bgp
-default]peer
3.3.3.3 connect
-interface lo0
[H3C
-bgp
-default]address
-family ipv4
[H3C
-bgp
-default-ipv4
]peer
1.1.1.1 enable
[H3C
-bgp
-default-ipv4
]peer
1.1.3.4 enable
[H3C
-bgp
-default-ipv4
]peer
3.3.3.3 enable
[H3C
-bgp
-default-ipv4
]peer
3.3.3.3 next
-hop
-local
R3的配置
[H3C
]int g0
/0
[H3C
-GigabitEthernet0
/0]ip add
1.1.2.3 24
[H3C
-GigabitEthernet0
/0]int g0
/1
[H3C
-GigabitEthernet0
/1]ip add
1.1.4.3 24
[H3C
-GigabitEthernet0
/1]int g0
/2
[H3C
-GigabitEthernet0
/2]ip add
1.1.5.3 24
[H3C
-GigabitEthernet0
/2]int lo0
[H3C
-LoopBack0
]ip add
3.3.3.3 32
[H3C
]ip route
-static 2.2.2.2 32 1.1.5.2
[H3C
]bgp
200
[H3C
-bgp
-default]peer
1.1.2.1 as
-number
100
[H3C
-bgp
-default]peer
2.2.2.2 as
-number
200
[H3C
-bgp
-default]peer
1.1.4.4 as
-number
300
[H3C
-bgp
-default]peer
2.2.2.2 connect
-interface lo0
[H3C
-bgp
-default]address
-family ipv4
[H3C
-bgp
-default-ipv4
]peer
1.1.2.1 enable
[H3C
-bgp
-default-ipv4
]peer
2.2.2.2 enable
[H3C
-bgp
-default-ipv4
]peer
1.1.4.4 enable
[H3C
-bgp
-default-ipv4
]peer
2.2.2.2 next
-hop
-local
R4的配置
[H3C
]int g0
/0
[H3C
-GigabitEthernet0
/0]ip add
1.1.3.4 24
[H3C
-GigabitEthernet0
/0]int g0
/1
[H3C
-GigabitEthernet0
/1]ip add
1.1.4.4 24
[H3C
-GigabitEthernet0
/1]bgp
300
[H3C
-bgp
-default]peer
1.1.3.2 as
-number
200
[H3C
-bgp
-default]peer
1.1.4.3 as
-number
200
[H3C
-bgp
-default]address
-family ipv4
[H3C
-bgp
-default-ipv4
]peer
1.1.3.2 enable
[H3C
-bgp
-default-ipv4
]peer
1.1.4.3 enable
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