OSPF 路由汇总配置
1.拓扑图
链接：https://pan.baidu.com/s/1IQ4gL0ZbKqQ88NW55sRT3Q
提取码：8888
eNSP
链接：https://pan.baidu.com/s/1wP0vHim4yqVV0bc0wmzhFw
提取码：8888
2、网络需求
a. SW、R1及R2运行OSPF，区域的规划如图所示；
b. SW使用network命令在各个用户VLAN上**OSPF，使得OSPF路由器能够学习到用户VLAN的相关路由；
c. R2的Loopback接口都不直接通告到OSPF中，而是采用重发布直连的方式注入OSPF；
d. 在网络中部署OSPF路由汇总。
3.配置
R1的配置增加如下：
[R1] ospf 1
[R1-ospf-1] area 1
[R1-ospf-1-area-0.0.0.1] abr-summary 192.168.0.0 255.255.248.0
R2的配置修改如下：
[R2 ] ospf 1
[R2-ospf-1] asbr-summary 192.168.16.0 255.255.248.0
OSPF的路由汇总有两种方式，一种是在ABR上执行的，这种方式是在ABR上将某个区域内的路由进行汇总；另一种是在ASBR上执行的，将该ASBR重发布到OSPF的路由进行汇总。因此在本网络中，我们可以在R1（ABR）上执行路由汇总，将area1里SW下挂的vlan路由汇总后再通告到area0。另外还可以在R2（ASBR）上执行路由汇总，将R2重发布进OSPF的直连路由进行汇总。
3.1、SW1的配置
[SW1]display current-configuration
sysname SW1
vlan batch 11 to 17 200
cluster enable
ntdp enable
ndp enable
drop illegal-mac alarm
diffserv domain default
drop-profile default
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
interface Vlanif1
interface Vlanif11
ip address 192.168.1.254 255.255.255.0
interface Vlanif12
ip address 192.168.2.254 255.255.255.0
interface Vlanif13
ip address 192.168.3.254 255.255.255.0
interface Vlanif14
ip address 192.168.4.254 255.255.255.0
interface Vlanif15
ip address 192.168.5.254 255.255.255.0
interface Vlanif16
ip address 192.168.6.254 255.255.255.0
interface Vlanif17
ip address 192.168.7.254 255.255.255.0
interface Vlanif200
ip address 192.168.200.1 255.255.255.252
interface MEth0/0/1
interface GigabitEthernet0/0/1
port link-type access
port default vlan 11
interface GigabitEthernet0/0/2
port link-type access
port default vlan 12
interface GigabitEthernet0/0/3
port link-type access
port default vlan 13
interface GigabitEthernet0/0/4
port link-type access
port default vlan 14
interface GigabitEthernet0/0/5
port link-type access
port default vlan 15
interface GigabitEthernet0/0/6
port link-type access
port default vlan 16
interface GigabitEthernet0/0/7
port link-type access
port default vlan 17
interface GigabitEthernet0/0/8
interface GigabitEthernet0/0/9
interface GigabitEthernet0/0/10
interface GigabitEthernet0/0/11
interface GigabitEthernet0/0/12
interface GigabitEthernet0/0/13
interface GigabitEthernet0/0/14
interface GigabitEthernet0/0/15
interface GigabitEthernet0/0/16
interface GigabitEthernet0/0/17
interface GigabitEthernet0/0/18
interface GigabitEthernet0/0/19
interface GigabitEthernet0/0/20
interface GigabitEthernet0/0/21
interface GigabitEthernet0/0/22
interface GigabitEthernet0/0/23
interface GigabitEthernet0/0/24
port link-type access
port default vlan 200
interface NULL0
ospf 1
area 0.0.0.1
network 192.168.1.0 0.0.0.255
network 192.168.2.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 192.168.4.0 0.0.0.255
network 192.168.5.0 0.0.0.255
network 192.168.6.0 0.0.0.255
network 192.168.7.0 0.0.0.255
network 192.168.200.0 0.0.0.3
user-interface con 0
user-interface vty 0 4
return
3.2、R1的配置
[R1]display current-configuration
sysname R1
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher OOCM4m($F4ajUn1vMEIBNUw#
local-user admin service-type http
firewall zone Local
priority 16
interface Ethernet0/0/0
interface Ethernet0/0/1
interface Serial0/0/0
link-protocol ppp
interface Serial0/0/1
link-protocol ppp
interface Serial0/0/2
link-protocol ppp
interface Serial0/0/3
link-protocol ppp
interface GigabitEthernet0/0/0
ip address 192.168.12.1 255.255.255.252
interface GigabitEthernet0/0/1
ip address 192.168.200.2 255.255.255.252
interface GigabitEthernet0/0/2
interface GigabitEthernet0/0/3
wlan
interface NULL0
ospf 1 router-id 1.1.1.1
area 0.0.0.0
network 192.168.12.0 0.0.0.3
area 0.0.0.1
abr-summary 192.168.0.0 255.255.248.0
network 192.168.200.0 0.0.0.3
user-interface con 0
user-interface vty 0 4
user-interface vty 16 20
return
[R1]
3.3、R2的配置
[R2]display current-configuration
sysname R2
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher OOCM4m($F4ajUn1vMEIBNUw#
local-user admin service-type http
firewall zone Local
priority 16
interface Ethernet0/0/0
interface Ethernet0/0/1
interface Serial0/0/0
link-protocol ppp
interface Serial0/0/1
link-protocol ppp
interface Serial0/0/2
link-protocol ppp
interface Serial0/0/3
link-protocol ppp
interface GigabitEthernet0/0/0
ip address 192.168.12.2 255.255.255.252
interface GigabitEthernet0/0/1
interface GigabitEthernet0/0/2
interface GigabitEthernet0/0/3
wlan
interface NULL0
interface LoopBack1
ip address 192.168.16.1 255.255.255.0
interface LoopBack2
ip address 192.168.17.1 255.255.255.0
interface LoopBack3
ip address 192.168.18.1 255.255.255.0
interface LoopBack4
ip address 192.168.19.1 255.255.255.0
interface LoopBack5
ip address 192.168.20.1 255.255.255.0
interface LoopBack6
ip address 192.168.21.1 255.255.255.0
interface LoopBack7
ip address 192.168.22.1 255.255.255.0
ospf 1 router-id 2.2.2.2
asbr-summary 192.168.16.0 255.255.248.0
import-route direct
area 0.0.0.0
network 192.168.12.0 0.0.0.3
user-interface con 0
user-interface vty 0 4
user-interface vty 16 20
return
3.4、查看SW1的路由表R2（ASBR）上汇总路由192.168.15.0
3.5、查看R2的路由表发现R1(ABR)汇总路由192.168.0.0
4全网络通讯