华为模拟器eNSPHCIPBGP简单实验

拓扑图：

实验要求：

1. 所有路由器发布自己的环回网段
2. 发布方法需要使用到network和重发布两种（重发布通过路由策略仅发布环回网段）
3. 在R1上创建两条汇总的网段进行手工聚合
4. 所有发布的网段之间可以互相通讯

思路：

网段划分：
12.0.0.0/24 - R1~R2
23.0.0.0/24 - R2~R3
34.0.0.0/24 - R3~R4
45.0.0.0/24 - R4~R5
172.16.1.0/24 - R1环回1
172.16.2.0/24 - R1环回2
1.1.1.1/24 - R1环回3
2.2.2.2/24 - R2环回
3.3.3.3/24 - R3环回
4.4.4.4/24 - R4环回
5.5.5.5/24 - R5环回


配置命令：

R1：

sys
sys r1
//配置路由器接口IP地址
int g0/0/0
ip add 12.0.0.1 24
int lo0
ip add 172.16.1.1 24
int lo1
ip add 172.16.2.1 24
int lo2
ip add 1.1.1.1 32
//EBGP对等体直连接口建邻
bgp 1
router-id 1.1.1.1
peer 12.0.0.2 as-number 2
net 172.16.1.0 24
net 172.16.2.0 24
aggregate 172.16.0.0 22 detail-suppressed
//前缀列表匹配环回流量
ip ip-prefix aa permit 1.1.1.1 32
route-policy aa permit node 10
if-match ip-prefix aa
bgp 1
import-route direct route-policy aa

R2：

sys
sys r2
//配置接口IP地址
int g0/0/0
ip add 12.0.0.2 24
int g0/0/1
ip add 23.0.0.1 24
int lo0
ip add 2.2.2.2 32
//配置OSPF
ospf 1 router-id 2.2.2.2
area 0
net 23.0.0.0 0.0.0.255
net 2.2.2.2 0.0.0.0
authentication-mode md5 admin cipher 123456
//EBGP对等体直连接口建邻
bgp 2
router-id 2.2.2.2
peer 12.0.0.1 as-number 1
//IBGP对等体环回接口建邻
bgp 2
peer 3.3.3.3 as-number 2
peer 3.3.3.3 connect-interface l0
peer 4.4.4.4 as-number 2
peer 4.4.4.4 connect-interface l0
peer 3.3.3.3 next-hop-local
peer 4.4.4.4 next-hop-local
ip ip-prefix aa permit 2.2.2.2 32
route-policy aa permit node 10
if-match ip-prefix aa
bgp 2
import-route direct route-policy aa

R3：

sys
sys r3
//配置接口ip地址
int g0/0/0
ip add 23.0.0.2 24
int g0/0/1
ip add 34.0.0.1 24
int lo0
ip add 3.3.3.3 32
//配置OSPF
ospf 1 router-id 3.3.3.3
area 0
net 23.0.0.0 0.0.0.255
net 34.0.0.0 0.0.0.255
net 3.3.3.3 0.0.0.0
authentication-mode md5 admin cipher 123456
//IBGP对等体环回接口建邻
bgp 2
router-id 3.3.3.3
peer 2.2.2.2 as-number 2
peer 2.2.2.2 connect-interface l0
peer 4.4.4.4 as-number 2
peer 4.4.4.4 connect-interface l0
peer 4.4.4.4 next-hop-local
peer 2.2.2.2 next-hop-local
ip ip-prefix aa permit 3.3.3.3 32
route-policy aa permit node 10
if-match ip-prefix aa
bgp 2
import-route direct route-policy aa

R4：

sys
sys r4
//配置接口ip地址
int g0/0/0
ip add 34.0.0.2 24
int g0/0/1
ip add 45.0.0.1 24
int lo0
ip add 4.4.4.4 32
//配置OSPF
ospf 1 router-id 4.4.4.4
area 0
net 34.0.0.0 0.0.0.255
net 4.4.4.4 0.0.0.0
authentication-mode md5 admin cipher 123456
//IBGP对等体环回接口建邻
bgp 2
router-id 4.4.4.4
peer 2.2.2.2 as-number 2
peer 2.2.2.2 connect-interface l0
peer 3.3.3.3 as-number 2
peer 3.3.3.3 connect-interface l0
peer 3.3.3.3 next-hop-local
peer 2.2.2.2 next-hop-local
ip ip-prefix aa permit 4.4.4.4 32
route-policy aa permit node 10
if-match ip-prefix aa
bgp 2
import-route direct route-policy aa
//EBGP对等体直连接口建邻
bgp 2
router-id 4.4.4.4
peer 45.0.0.2 as-number 3

R5：

sys
sys r5
//配置接口ip地址
int g0/0/0
ip add 45.0.0.2 24
int lo0
ip add 5.5.5.5 32
//EBGP对等体直连接口建邻
bgp 3
router-id 5.5.5.5
peer 45.0.0.1 as-number 2
//前缀列表匹配环回流量
ip ip-prefix aa permit 5.5.5.5 32
route-policy aa permit node 10
if-match ip-prefix aa
bgp 3
import-route direct route-policy aa

验证：

R5(5.5.5.5)pingR1(1.1.1.1)