BGP水平分割

概述实验拓扑： 实验需求： 配置BGP ，AR1通过虚拟接口ping通AR6。 需求分析： 配置IBGP 和EBGP 分配AS 实验步骤： 为每一台路由器配置虚拟地址以及IP地址 例：Interface GigabitEthernet 0/0/0 Ip address 192.168.10.1 255.255.255.0 Interface lookback 0 Ip address 10.10.10 实验拓扑：

实验需求：
配置BGP ，AR1通过虚拟接口Ping通AR6。
需求分析：

配置IBGP 和EBGP 分配AS
实验步骤： 为每一台路由器配置虚拟地址以及IP地址
例：Interface GigabitEthernet 0/0/0
Ip address 192.168.10.1 255.255.255.0
Interface lookback 0
Ip address 10.10.10.1 255.255.255.0 AR2至AR5 配置ospf
例： AR2：OSPF 1 router-ID 2.2.2.2
Area 0
Network 192.168.20.0 0.0.0.255
Network 10.10.2.2 0.0.0.0
AR3:ospf 1 router-ID 3.3.3.3
Area 0
Network 192.168.20.0 0.0.0.255
Network 192.168.30.0 0.0.0.255
Network 10.10.3.3 0.0.0.0
3.AR1 的AS 设置为100
AR2至AR5设置大AS号为200
AR6设置为600
AR2 和AR3设置为小AS 64523
AR4 和AR5 设置为小AS 64545
4.配置命令：
R1:
undo terminal monitor
system-vIEw
sysname R1
interface loopback 0
ip address 10.10.1.1 32
interface gigabitethernet 0/0/0
ip address 192.168.10.1 24
quit
bgp 100
router 1.1.1.1
peer 192.168.10.2 as-number 200
network 10.10.1.1 255.255.255.255
quit

R2
undo terminal monitor
system-vIEw
sysname R2
interface loopback 0
ip address 10.10.2.2 32
interface gigabitethernet 0/0/0
ip address 192.168.20.1 24
interface gigabitethernet 0/0/1
ip address 192.168.10.2 24
quit
ospf 1 router-ID 2.2.2.2
area 0
network 192.168.20.0 0.0.0.255
network 10.10.2.2 0.0.0.0
quit
quit
bgp 64523 \设置联盟的小AS号
router-ID 2.2.2.2
confederation ID 200 \配置联盟号
peer 10.10.3.3 as-number 64523
peer 10.10.3.3 connect-interface LoopBack0
\ 发送BGP 报文时所使用的源IP
peer 192.168.10.1 as-number 100 \指定邻居的IP地址以及邻居的AS号
peer 10.10.3.3 next-hop-local \设置最大下一跳
quit

R3
undo terminal monitor
system-vIEw
sysname R3
interface gigabitethernet 0/0/0
ip address 192.168.30.1 24
interface gigabitethernet 0/0/1
ip address 192.168.20.2 24
interface loopback 0
ip address 10.10.3.3 32
quit
ospf 1 router-ID 3.3.3.3
area 0
network 192.168.20.0 0.0.0.255
network 192.168.30.0 0.0.0.255
network 10.10.3.3 0.0.0.0
quit
quit
bgp 64523
router-ID 3.3.3.3
confederation ID 200
confederation peer-as 64545 \将 64545 设置为同一个联盟下小AS
peer 10.10.2.2 as-number 64523
peer 10.10.2.2 connect-interface LoopBack0
peer 10.10.4.4 as-number 64545
peer 10.10.4.4 connect-interface LoopBack0
peer 10.10.4.4 ebgp-max-hop \更改TTL值
quit

R4
undo teminal monitor
system-vIEw
sysname R4
interface loopback 0
ip address 10.10.4.4 32
interface gigabitethernet 0/0/0
ip address 192.168.40.1 24
interface gigabitethernet 0/0/1
ip address 192.168.30.2 24
quit
ospf 1 router-ID 4.4.4.4
area 0
network 192.168.30.0 0.0.0.255
network 192.168.40.0 0.0.0.255
network 10.10.4.4 0.0.0.0
quit
quit
bgp 64545
router-ID 4.4.4.4
confederation ID 200
confederation peer-as 64523
peer 10.10.3.3 as-number 64523
peer 10.10.3.3 connect-interface loopback 0
peer 10.10.3.3 ebgp-max-hop
peer 10.10.5.5 as-number 64545
peer 10.10.5.5 connect-interface loopback 0
quit

R5
undo terminal monitor
system-vIEw
sysname R5
interface gigabitethernet 0/0/0
ip address 192.168.50.1 24
interface gigabitethernet 0/0/1
ip address 192.168.40.2 24
interface loopback 0
ip address 10.10.5.5 32
quit
ospf 1 router-ID 5.5.5.5
area 0
network 192.168.40.0 0.0.0.255
network 10.10.5.5 0.0.0.0
quit
quit
bgp 64545
router-ID 5.5.5.5
confederation ID 200
peer 10.10.4.4 as-number 64545
peer 10.10.4.4 connect-interface LoopBack0
peer 10.10.4.4 next-hop-local
peer 192.168.50.2 as-number 600
quit

R6undo terminal monitorsystem-vIEwsysname R6interface gigabitethernet 0/0/1ip address 192.168.50.2 24interface loopback 0ip address 10.10.6.6 32quitbgp 600router-ID 6.6.6.6peer 192.168.50.1 as-number 200import-route directquit

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