IP基础配置

R1

[r1]int l0

[r1-LoopBack0]ip add 10.0.0.1 24

[r1-LoopBack0]int l1

[r1-LoopBack1]ip add 192.168.1.1 24

[r1-LoopBack1]int g 0/0/0

[r1-GigabitEthernet0/0/0]ip add 12.0.0.1 24

R2

[r2]int l0

[r2-LoopBack0]ip add 172.16.2.1 24

[r2-LoopBack0]int g 0/0/0

[r2-GigabitEthernet0/0/0]ip add 12.0.0.2 24

[r2-GigabitEthernet0/0/0]int g 0/0/1

[r2-GigabitEthernet0/0/1]ip add 172.16.1.1 29

[r2-GigabitEthernet0/0/1]int g 0/0/2

[r2-GigabitEthernet0/0/2]ip add 172.16.1.17 29

R3

[r3]int l0

[r3-LoopBack0]ip add 172.16.3.1 24

[r3-LoopBack0]int g 0/0/0

[r3-GigabitEthernet0/0/0]ip add 172.16.1.2 29

[r3-GigabitEthernet0/0/0]int g 0/0/1

[r3-GigabitEthernet0/0/1]ip add 172.16.1.9 29

R4

[r4]int l0

[r4-LoopBack0]ip add 172.16.4.1 24

[r4-LoopBack0]int g 0/0/0

[r4-GigabitEthernet0/0/0]ip add 172.16.1.10 29

[r4-GigabitEthernet0/0/0]int g 0/0/1

[r4-GigabitEthernet0/0/1]ip add 172.16.1.41 29

R5

[r5]int l0

[r5-LoopBack0]ip add 172.16.5.1 24

[r5-LoopBack0]int g 0/0/0

[r5-GigabitEthernet0/0/0]ip add 172.16.1.18 29

[r5-GigabitEthernet0/0/0]int g 0/0/1

[r5-GigabitEthernet0/0/1]ip add 172.16.1.25 29

R6

[r6]int l0

[r6-LoopBack0]ip add 172.16.6.1 24

[r6-LoopBack0]int g 0/0/0

[r6-GigabitEthernet0/0/0]ip add 172.16.1.26 29

[r6-GigabitEthernet0/0/0]int g 0/0/1

[r6-GigabitEthernet0/0/1]ip add 172.16.1.33 29

R7

[r7]int l0

[r7-LoopBack0]ip add 172.16.7.1 24

[r7-LoopBack0]int g 0/0/0

[r7-GigabitEthernet0/0/0]ip add 172.16.1.34 29

[r7-GigabitEthernet0/0/0]int g 0/0/1

[r7-GigabitEthernet0/0/1]ip add 172.16.1.42 29

[r7-GigabitEthernet0/0/1]int g 0/0/2

[r7-GigabitEthernet0/0/2]ip add 78.0.0.2 24

R8

[r8]int l0

[r8-LoopBack0]ip add 11.0.0.1 24

[r8-LoopBack0]int l1

[r8-LoopBack1]ip add 192.168.2.1 24

[r8-LoopBack1]int g 0/0/0

[r8-GigabitEthernet0/0/0]ip add 78.0.0.1 24

开启OSPF进程

[r2]ospf 1 router-id 2.2.2.2

[r2-ospf-1]area 0

[r2-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[r3]ospf 1 router-id 3.3.3.3

[r3-ospf-1]area 0

[r3-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[r4]ospf 1 router-id 4.4.4.4

[r4-ospf-1]area 0

[r4-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[r5]ospf 1 router-id 5.5.5.5

[r5-ospf-1]area 0

[r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[r6]ospf 1 router-id 6.6.6.6

[r6-ospf-1]area 0

[r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[r7]ospf 1 router-id 7.7.7.7

[r7-ospf-1]area 0

[r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

确定路径之间的等价关系

联邦EBGP建立等价关系以修改TTL值,建立IBMGP之间的等价关系,使用循环反馈

[r1]bgp 1

[r1-bgp]router-id 1.1.1.1

[r1-bgp]peer 12.0.0.2 as-number 2

[r2]bgp 64512

[r2-bgp]router-id 2.2.2.2

[r2-bgp]confederation id 2

[r2-bgp]confederation peer-as 64513

[r2-bgp]peer 12.0.0.1 as-number 1

[r2-bgp]peer 172.16.3.1 as-number 64512

[r2-bgp]peer 172.16.3.1 connect-interface LoopBack 0

[r2-bgp]peer 172.16.5.1 as-number 64513

[r2-bgp]peer 172.16.5.1 connect-interface LoopBack 0

[r2-bgp]peer 172.16.5.1 ebgp-max-hop

[r3]bgp 64512

[r3-bgp]router-id 3.3.3.3

[r3-bgp]confederation id 2

[r3-bgp]peer 172.16.2.1 as-number 64512

[r3-bgp]peer 172.16.2.1 connect-interface LoopBack 0

[r3-bgp]peer 172.16.4.1 as-number 64512

[r3-bgp]peer 172.16.4.1 connect-interface LoopBack 0

[[r4]bgp 64512

[r4-bgp]router-id 4.4.4.4

[r4-bgp]confederation id 2

[r4-bgp]confederation peer-as 64513

[r4-bgp]peer 172.16.3.1 as-number 64512

[r4-bgp]peer 172.16.3.1 connect-interface LoopBack 0

[r4-bgp]peer 172.16.7.1 as-number 64513

[r4-bgp]peer 172.16.7.1 connect-interface LoopBack 0

[r4-bgp]peer 172.16.7.1 ebgp-max-hop

[r5]bgp 64513

[r5-bgp]router-id 5.5.5.5

[r5-bgp]confederation id 2

[r5-bgp]confederation peer-as 64512

[r5-bgp]peer 172.16.6.1 as-number 64513

[r5-bgp]peer 172.16.6.1 connect-interface LoopBack 0

[r5-bgp]peer 172.16.2.1 as-number 64512

[r5-bgp]peer 172.16.2.1 connect-interface LoopBack 0

[r5-bgp]peer 172.16.2.1 ebgp-max-hop

[r6]bgp 64513

[r6-bgp]router-id 6.6.6.6

[r6-bgp]confederation id 2

[r6-bgp]peer 172.16.5.1 as-number 64513

[r6-bgp]peer 172.16.5.1 connect-interface LoopBack 0

[r6-bgp]peer 172.16.7.1 as-number 64513

[r6-bgp]peer 172.16.7.1 connect-interface LoopBack 0

[r7]bgp 64513

[r7-bgp]router-id 7.7.7.7

[r7-bgp]confederation id 2

[r7-bgp]confederation peer-as 64512

[r7-bgp]peer 78.0.0.1 as-number 3

[r7-bgp]peer 172.16.6.1 as-number 64513

[r7-bgp]peer 172.16.6.1 connect-interface LoopBack 0

[r7-bgp]peer 172.16.4.1 as-number 64512

[r7-bgp]peer 172.16.4.1 connect-interface LoopBack 0

[r7-bgp]peer 172.16.4.1 ebgp-max-hop

[r8]bgp 3

[r8-bgp]router-id 8.8.8.8

[r8-bgp]peer 78.0.0.2 as-number 2

R2/R7上的本地地址替换下一个跳跃地址

成为可用和高效的,并发送到其他设备

[r1-bgp]network 10.0.0.0 24

[r2]bgp 64512

[r2-bgp]peer 172.16.3.1 next-hop-local

[r2-bgp]peer 172.16.5.1 next-hop-local

[r8]bgp 3

[r8-bgp]network 11.0.0.0 24

[r7]bgp 64513

[r7-bgp]peer 172.16.4.1 next-hop-local

[r7-bgp]peer 172.16.6.1 next-hop-local

R4和R7由于IBMGP的级别分割机制,不能接收此路由信息。 如果你希望R4和R7能接收整个路由信息,你可以设置R3和R6为RR设备,R2和R5为RR设备的客户

[r3]bgp 64512

[r3-bgp]peer 172.16.2.1 reflect-client

[r6]bgp 64513

[r6-bgp]peer 172.16.5.1 reflect-client

减少路线项目数目,避免漏洞

[r2]ip route-static 172.16.0.0 21 NULL 0

[r2]bgp 64512

[r2-bgp]network 172.16.0.0 21

[r7]ip route-static 172.16.0.0 21 NULL 0

[r7]bgp 64513

[r7-bgp]network 172.16.0.0 21

可以访问整个网络设备的循环

要使192.168.1.0和192.168.2.0能通，可以通过虚拟接口。这里源IP和目标IP不能写物理接口。

[r1]interface Tunnel 0/0/0

[r1-Tunnel0/0/0]ip add 18.0.0.1 24

[r1-Tunnel0/0/0]tunnel-protocol gre

[r1-Tunnel0/0/0]source 10.0.0.1

[r1-Tunnel0/0/0]destination 11.0.0.1

[r8]interface Tunnel 0/0/0

[r8-Tunnel0/0/0]ip add 18.0.0.2 24

[r8-Tunnel0/0/0]tunnel-protocol gre

[r8-Tunnel0/0/0]source 11.0.0.1

[r8-Tunnel0/0/0]destination 10.0.0.1

[r1]ip route-static 192.168.2.0 24 18.0.0.2

[r8]ip route-static 192.168.1.0 24 18.0.0.1

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