配置IP地址

r1
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 12.0.0.1 24
[r1-GigabitEthernet0/0/0]int lo0
[r1-LoopBack0]ip add 192.168.1.1 24
[r1-LoopBack0]int lo1
[r1-LoopBack1]ip add 10.0.0.1 24

r2
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 12.0.0.2 24
[r2-GigabitEthernet0/0/0]int g0/0/1
[r2-GigabitEthernet0/0/1]ip add 172.16.1.1 27
[r2-GigabitEthernet0/0/1]int g0/0/2
[r2-GigabitEthernet0/0/2]ip add 172.16.1.193 27
[r2-GigabitEthernet0/0/2]int lo0
[r2-LoopBack0]ip add 172.16.2.1 24

r3
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 172.16.1.2 27
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 172.16.1.33 27
[r3-GigabitEthernet0/0/1]int lo0
[r3-LoopBack0]ip add 172.16.3.1 24
[r3]int lo1
[r3-LoopBack1]ip add 192.168.2.1 24
[r3-LoopBack1]int lo2
[r3-LoopBack2]ip add 11.0.0.1 24

r4
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 172.16.1.34 27
[r4-GigabitEthernet0/0/0]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 172.16.1.65 27
[r4-GigabitEthernet0/0/1]int lo0
[r4-LoopBack0]ip add 172.16.4.1 24

r5
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 172.16.1.194 27
[r5-GigabitEthernet0/0/0]int g0/0/1
[r5-GigabitEthernet0/0/1]ip add 172.16.1.161 27
[r5-GigabitEthernet0/0/1]int lo0
[r5-LoopBack0]ip add 172.16.5.1 24

r6
[r6]int g0/0/0
[r6-GigabitEthernet0/0/0]ip add 172.16.1.162 27
[r6-GigabitEthernet0/0/0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip add 172.16.1.129 27
[r6-GigabitEthernet0/0/1]int lo0
[r6-LoopBack0]ip add 172.16.6.1 24

r7
[r7]int g0/0/0
[r7-GigabitEthernet0/0/0]ip add 172.16.1.130 27
[r7-GigabitEthernet0/0/0]int g0/0/1
[r7-GigabitEthernet0/0/1]ip add 172.16.1.66 27
[r7-GigabitEthernet0/0/1]int lo0
[r7-LoopBack0]ip add 172.16.7.1 24

r8
[r8]int g0/0/0
[r8-GigabitEthernet0/0/0]ip add 13.0.0.2 24
[r8-GigabitEthernet0/0/0]int lo0
[r8-LoopBack0]ip add 172.16.8.1 24

OSPF配置(R2到R7)

R2
[r2]ospf 1 rou
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]are
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]net
[r2-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255
R3
[r3]ospf 1 rou
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]are
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]net
[r3-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]
R4
[r4]ospf 1 rou
[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]are
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]net
[r4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
[r4-ospf-1-area-0.0.0.0]
R5
[r5]ospf 1 rou
[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]are
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]net
[r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
[r5-ospf-1-area-0.0.0.0]
R6
[r6]ospf 1 rou
[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]are
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]net
[r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
[r6-ospf-1-area-0.0.0.0]
R7
[r7]ospf 1 rou
[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]are
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]net
[r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
[r7-ospf-1-area-0.0.0.0]

BGP配置
EBGP和IBGP建立

R1
[r1]bgp 1
[r1-bgp]rou
[r1-bgp]route-select
[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.0.0.2 as
[r1-bgp]peer 12.0.0.2 as-number 2
R2
[r2]bgp 64512
[r2-bgp]rou
[r2-bgp]route-select
[r2-bgp]router-id 2.2.2.2
[r2-bgp]con
[r2-bgp]confederation id 2
[r2-bgp]con
[r2-bgp]confederation as
[r2-bgp]confederation as-n
[r2-bgp]confederation peer
[r2-bgp]confederation peer-as 64513
[r2-bgp]
[r2-bgp]peer 12.0.0.1 as
[r2-bgp]peer 12.0.0.1 as-number 1
[r2-bgp]peer 172.16.3.1 as
[r2-bgp]peer 172.16.3.1 as-path-filter
[r2-bgp]peer 172.16.3.1 as-number 64512
[r2-bgp]peer 172.16.3.1 con
[r2-bgp]peer 172.16.3.1 connect-interface l
[r2-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[r2-bgp]
[r2-bgp]
[r2-bgp]peer 172.16.5.1 as
[r2-bgp]peer 172.16.5.1 as-number 64513
[r2-bgp]peer 172.16.5.1 con
[r2-bgp]peer 172.16.5.1 connect-interface l
[r2-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.5.1 eb
[r2-bgp]peer 172.16.5.1 ebgp-max-hop
R3
[r3]bgp 64512
[r3-bgp]rou
[r3-bgp]route-select
[r3-bgp]router-id 3.3.3.3
[r3-bgp]con
[r3-bgp]confederation id 2
[r3-bgp]
[r3-bgp]peer 172.16.2.1 as
[r3-bgp]peer 172.16.2.1 as-number 64512
[r3-bgp]peer 172.16.2.1 con
[r3-bgp]peer 172.16.2.1 connect-interface l
[r3-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[r3-bgp]
[r3-bgp]peer 172.16.4.1 as
[r3-bgp]peer 172.16.4.1 as-number 64512
[r3-bgp]peer 172.16.4.1 con
[r3-bgp]peer 172.16.4.1 connect-interface l
[r3-bgp]peer 172.16.4.1 connect-interface LoopBack 0
R4
[r4]bgp 64512
[r4-bgp]rou
[r4-bgp]route-select
[r4-bgp]router-id 4.4.4.4
[r4-bgp]
[r4-bgp]con
[r4-bgp]confederation id 2
[r4-bgp]
[r4-bgp]c0n
[r4-bgp]con
[r4-bgp]confederation peer
[r4-bgp]confederation peer-as 64513
[r4-bgp]
[r4-bgp]peer 172.16.3.1 as
[r4-bgp]peer 172.16.3.1 as-number 64512
[r4-bgp]peer 172.16.3.1 con
[r4-bgp]peer 172.16.3.1 connect-interface l
[r4-bgp]peer 172.16.3.1 connect-interface LoopBack 0
[r4-bgp]
[r4-bgp]peer 172.16.7.1 as
[r4-bgp]peer 172.16.7.1 as-number 64513
[r4-bgp]peer 172.16.7.1 con
[r4-bgp]peer 172.16.7.1 connect-interface l
[r4-bgp]peer 172.16.7.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.7.1 eb
[r4-bgp]peer 172.16.7.1 ebgp-max-hop
[r4-bgp]
R5
[r5]bgp 64513
[r5-bgp]rou
[r5-bgp]route-select
[r5-bgp]router-id 5.5.5.5
[r5-bgp]con
[r5-bgp]confederation id 2
[r5-bgp]con
[r5-bgp]confederation p
[r5-bgp]confederation peer-as 64512
[r5-bgp]
[r5-bgp]peer 172.16.2.1 as
[r5-bgp]peer 172.16.2.1 as-number 64512
[r5-bgp]
[r5-bgp]peer 172.16.2.1 con
[r5-bgp]peer 172.16.2.1 connect-interface l
[r5-bgp]peer 172.16.2.1 connect-interface LoopBack 0
[r5-bgp]
[r5-bgp]peer 172.16.2.1 eb
[r5-bgp]peer 172.16.2.1 ebgp-max-hop
[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]rou
[r6-bgp]route-select
[r6-bgp]router-id 6.6.6.6
[r6-bgp]
[r6-bgp]con
[r6-bgp]confederation id 2
[r6-bgp]
[r6-bgp]peer 172.16.5.1 as
[r6-bgp]peer 172.16.5.1 as-number 64513
[r6-bgp]peer 172.16.5.1 con
[r6-bgp]peer 172.16.5.1 connect-interface l
[r6-bgp]peer 172.16.5.1 connect-interface LoopBack 0
[r6-bgp]
[r6-bgp]
[r6-bgp]peer 172.16.7.1 as
[r6-bgp]peer 172.16.7.1 as-number 64513
[r6-bgp]peer 172.16.7.1 con
[r6-bgp]peer 172.16.7.1 connect-interface l
[r6-bgp]peer 172.16.7.1 connect-interface LoopBack 0
R7
[r7]bgp 64513
[r7-bgp]rou
[r7-bgp]route-select
[r7-bgp]router-id 7.7.7.7
[r7-bgp]con
[r7-bgp]confederation id 2
[r7-bgp]
[r7-bgp]con
[r7-bgp]confederation p
[r7-bgp]confederation peer-as 64512
[r7-bgp]peer 172.16.4.1 as
[r7-bgp]peer 172.16.4.1 as-number 64512
[r7-bgp]peer 172.16.4.1 con
[r7-bgp]peer 172.16.4.1 connect-interface l
[r7-bgp]peer 172.16.4.1 connect-interface LoopBack 0
[r7-bgp]
[r7-bgp]
[r7-bgp]
[r7-bgp]peer 172.16.6.1 as
[r7-bgp]peer 172.16.6.1 as-number 64513
[r7-bgp]peer 172.16.6.1 con
[r7-bgp]peer 172.16.6.1 connect-interface l
[r7-bgp]peer 172.16.6.1 connect-interface LoopBack 0
[r7-bgp]peer 13.0.0.2 as-number 3
R8
[r8]bgp 3
[r8-bgp]rou
[r8-bgp]route-select
[r8-bgp]router-id 8.8.8.8
[r8-bgp]peer 13.0.0.1 as
[r8-bgp]peer 13.0.0.1 as-number 2

解决发布路由问题

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
R3
[r3-bgp]peer 172.16.2.1 reflect-client
R6
[r6-bgp]peer 172.16.5.1 reflect-client
R7
[r7-bgp]peer 172.16.4.1 next-hop-local
[r7-bgp]peer 172.16.6.1 next-hop-local
[r7]ip route-static 172.16.0.0 21 NULL 0
[r7-bgp]network 172.16.0.0 21