拓扑图
要求:
6.R1在AS1中，R2R3R4在联邦AS2的成员AS64512中，R5R6R7在联邦AS3的成员AS64513中，R8在AS3中
分析:
1.完成ip配置和联邦内部igp的配置
2.完成bgp配置,R1R2建立ebgp对等体,R7R8建立ebgp对等体,R2R3R4在联邦AS2内部的成员64512中建立IBGP对等体(R3为反射器，R2R4为客户端)，R5R6R7在联邦AS2内部的成员64513中建立IBGP对等体(R6为反射器，R5R7为客户端),bgp连接建立后各设备发布自己用于模拟用户网段的环回
搭建:
1.ip和igp配置
//R1
#
interface GigabitEthernet0/0/0
ip address 12.0.0.1 255.255.255.252
#
interface LoopBack0
ip address 192.168.1.1 255.255.255.0
#
interface LoopBack1
ip address 10.1.1.1 255.255.255.0
//R2
#
interface GigabitEthernet0/0/0
ip address 12.0.0.2 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.1 255.255.255.252
#
interface GigabitEthernet0/0/2
ip address 172.16.0.9 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.24 255.255.255.255
#
ospf 1 router-id 2.2.2.2
area 0.0.0.0
network 172.16.0.24 0.0.0.0
network 172.16.0.1 0.0.0.0
network 172.16.0.9 0.0.0.0
//R3
#
interface GigabitEthernet0/0/0
ip address 172.16.0.2 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.5 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.25 255.255.255.255
#
ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 172.16.0.2 0.0.0.0
network 172.16.0.5 0.0.0.0
network 172.16.0.25 0.0.0.0
//R4
#
interface GigabitEthernet0/0/0
ip address 172.16.0.6 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.13 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.26 255.255.255.255
#
ospf 1 router-id 4.4.4.4
area 0.0.0.0
network 172.16.0.6 0.0.0.0
network 172.16.0.13 0.0.0.0
network 172.16.0.26 0.0.0.0
//R5
#
interface GigabitEthernet0/0/0
ip address 172.16.0.17 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.10 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.27 255.255.255.255
#
ospf 1 router-id 5.5.5.5
area 0.0.0.0
network 172.16.0.17 0.0.0.0
network 172.16.0.10 0.0.0.0
network 172.16.0.27 0.0.0.0
//R6
#
interface GigabitEthernet0/0/0
ip address 172.16.0.21 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.18 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.28 255.255.255.255
#
ospf 1 router-id 6.6.6.6
area 0.0.0.0
network 172.16.0.21 0.0.0.0
network 172.16.0.18 0.0.0.0
network 172.16.0.28 0.0.0.0
//R7
#
interface GigabitEthernet0/0/0
ip address 172.16.0.14 255.255.255.252
#
interface GigabitEthernet0/0/1
ip address 172.16.0.22 255.255.255.252
#
interface GigabitEthernet0/0/2
ip address 78.0.0.1 255.255.255.252
#
interface LoopBack0
ip address 172.16.0.29 255.255.255.255
#
ospf 1 router-id 7.7.7.7
area 0.0.0.0
network 172.16.0.14 0.0.0.0
network 172.16.0.22 0.0.0.0
network 172.16.0.29 0.0.0.0
//R8
#
interface GigabitEthernet0/0/0
ip address 78.0.0.2 255.255.255.252
#
interface LoopBack0
ip address 192.168.2.1 255.255.255.0
#
interface LoopBack1
ip address 11.1.1.1 255.255.255.0 2.BGP配置
//R1
#
bgp 1
router-id 1.1.1.1
peer 12.0.0.2 as-number 2
peer 12.0.0.2 ebgp-max-hop 2
peer 12.0.0.2 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
network 10.1.1.0 255.255.255.0
peer 12.0.0.2 enable
//R2
#
bgp 64512
router-id 2.2.2.2
confederation id 2
confederation peer-as 64513
peer 172.16.0.2 as-number 64512
peer 172.16.0.10 as-number 64513
peer 192.168.1.1 as-number 1
peer 192.168.1.1 ebgp-max-hop 2
#
ipv4-family unicast
undo synchronization
network 2.2.2.2 255.255.255.255
network 3.3.3.3 255.255.255.255
network 4.4.4.4 255.255.255.255
peer 172.16.0.2 enable
peer 172.16.0.2 next-hop-local
peer 172.16.0.10 enable
peer 172.16.0.10 next-hop-local
peer 192.168.1.1 enable
//R3
#
bgp 64512
router-id 3.3.3.3
confederation id 2
peer 172.16.0.1 as-number 64512
peer 172.16.0.6 as-number 64512
#
ipv4-family unicast
undo synchronization
peer 172.16.0.1 enable
peer 172.16.0.1 reflect-client
peer 172.16.0.1 next-hop-local
peer 172.16.0.6 enable
peer 172.16.0.6 reflect-client
peer 172.16.0.6 next-hop-local
//R4
#
bgp 64512
router-id 4.4.4.4
confederation id 2
confederation peer-as 64513
peer 172.16.0.5 as-number 64512
peer 172.16.0.14 as-number 64513
#
ipv4-family unicast
undo synchronization
peer 172.16.0.5 enable
peer 172.16.0.5 next-hop-local
peer 172.16.0.14 enable
peer 172.16.0.14 next-hop-local
//R5
#
bgp 64513
router-id 5.5.5.5
confederation id 2
confederation peer-as 64512
peer 172.16.0.9 as-number 64512
peer 172.16.0.18 as-number 64513
#
ipv4-family unicast
undo synchronization
peer 172.16.0.9 enable
peer 172.16.0.9 next-hop-local
peer 172.16.0.18 enable
peer 172.16.0.18 next-hop-local
//R6
#
bgp 64513
router-id 6.6.6.6
confederation id 2
peer 172.16.0.17 as-number 64513
peer 172.16.0.22 as-number 64513
#
ipv4-family unicast
undo synchronization
peer 172.16.0.17 enable
peer 172.16.0.17 reflect-client
peer 172.16.0.17 next-hop-local
peer 172.16.0.22 enable
peer 172.16.0.22 reflect-client
peer 172.16.0.22 next-hop-local
//R7
#
bgp 64513
router-id 7.7.7.7
confederation id 2
confederation peer-as 64512
peer 172.16.0.13 as-number 64512
peer 172.16.0.21 as-number 64513
peer 192.168.2.1 as-number 3
peer 192.168.2.1 ebgp-max-hop 2
#
ipv4-family unicast
undo synchronization
network 5.5.5.5 255.255.255.255
network 6.6.6.6 255.255.255.255
network 7.7.7.7 255.255.255.255
peer 172.16.0.13 enable
peer 172.16.0.13 next-hop-local
peer 172.16.0.21 enable
peer 172.16.0.21 next-hop-local
peer 192.168.2.1 enable
//R8
#
bgp 3
router-id 8.8.8.8
peer 78.0.0.1 as-number 2
peer 78.0.0.1 ebgp-max-hop 2
peer 78.0.0.1 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
network 11.1.1.0 255.255.255.0
peer 78.0.0.1 enable结果
1.R1环回pingR8环回
