[r1]int lo0
[r1-LoopBack0]ip add 1.1.1.1 32
[r1]int lo1
[r1-LoopBack1]ip add 1.1.10.1 24
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 12.1.1.1 24
[r2]int lo0
[r2-LoopBack0]ip add 1.1.1.2 32
[r2]int lo1
[r2-LoopBack1]ip add 2.2.2.2 24
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 12.1.1.2 24
[r2]int g0/0/1
[r2-GigabitEthernet0/0/1]ip add 23.1.1.1 24
[r3]int lo0
[r3-LoopBack0]ip add 1.1.1.3 32
[r3]int lo1
[r3-LoopBack1]ip add 3.3.3.3 24
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 23.1.1.2 24
[r3]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 34.1.1.1 24
[r4]int lo0
[r4-LoopBack0]ip add 1.1.1.4 32
[r4]int lo1
[r4-LoopBack1]ip add 4.4.4.4 24
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 34.1.1.2 24
[r4]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 45.1.1.1 24
[r4]int g4/0/0
[r4-GigabitEthernet4/0/0]ip add 54.1.1.1 24
[r5]int lo0
[r5-LoopBack0]ip add 1.1.1.5 32
[r5]int lo1
[r5-LoopBack1]ip add 5.5.5.5 24
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 45.1.1.2 24
[r5]int g0/0/1
[r5-GigabitEthernet0/0/1]ip add 54.1.1.2 24
(测试)
[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 1.1.1.2 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
[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 1.1.1.3 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 4.4.4.4 0.0.0.0
[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 1.1.1.4 0.0.0.0
(查看)
(修改为broadcast)
[r2]int lo1
[r2-LoopBack1]ospf network-type broadcast
[r3]int lo1
[r3-LoopBack1]ospf network-type broadcast
[r4]int lo1
[r4-LoopBack1]ospf network-type broadcast
[r1]bgp 1
[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
(测试)
[r2]bgp 2
[r2-bgp]peer 1.1.1.3 as-number 2
[r2-bgp]peer 1.1.1.3 connect-interface LoopBack 0
[r3]bgp 2
[r3-bgp]router-id 3.3.3.3
[r3-bgp]peer 1.1.1.2 as-number 2
[r3-bgp]peer 1.1.1.2 connect-interface LoopBack 0
[r3-bgp]peer 1.1.1.4 as-number 2
[r3-bgp]peer 1.1.1.4 connect-interface LoopBack 0
[r4]bgp 2
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 1.1.1.3 as-number 2
[r4-bgp]peer 1.1.1.3 connect-interface LoopBack 0
(配置静态路由,使得R4和R5有建立邻居的条件)
[r4]ip route-static 1.1.1.5 32 45.1.1.2
[r4]ip route-static 1.1.1.5 32 54.1.1.2
[r5]ip route-static 1.1.1.4 32 45.1.1.1
[r5]ip route-static 1.1.1.4 32 54.1.1.1
(测试)
[r4]bgp 2
[r4-bgp]peer 1.1.1.5 as-number 3
[r4-bgp]peer 1.1.1.5 connect-interface LoopBack 0
[r4-bgp]peer 1.1.1.5 ebgp-max-hop 2
[r5]bgp 3
[r5-bgp]router-id 5.5.5.5
[r5-bgp]peer 1.1.1.4 as-number 2
[r5-bgp]peer 1.1.1.4 connect-interface LoopBack 0
[r5-bgp]peer 1.1.1.4 ebgp-max-hop 2
(查看)
(1)
[r1]bgp 1
[r1-bgp]network 1.1.10.0 24
(查看)
(完善)
[r2]bgp 2
[r2-bgp]peer 1.1.1.3 next-hop-local
[r2]bgp 2
[r2-bgp]peer 1.1.1.4 as-number 2
[r2-bgp]peer 1.1.1.4 connect-interface LoopBack 0
[r4]bgp 2
[r4-bgp]peer 1.1.1.2 as-number 2
[r4-bgp]peer 1.1.1.2 connect-interface LoopBack 0
(测试)
(2)
[r5]bgp 3
[r5-bgp]network 5.5.5.0 24
[r4-bgp]peer 1.1.1.3 next-hop-local
[r4-bgp]peer 1.1.1.2 next-hop-local
(查看)
[r2]bgp 2
[r2-bgp]network 2.2.2.0 24
[r3]bgp 2
[r3-bgp]network 3.3.3.0 24
[r4]bgp 2
[r4-bgp]network 4.4.4.0 24
(查看)
(测试)