华三BGP实验

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   //为了和3.3.3.3/32网段互通
[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  //若同时存在ibgp邻居和ebgp邻居，则要更改下一跳


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  //若同时存在ibgp邻居和ebgp邻居，则要更改下一跳

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