配置 NSSA ABR路由器使用Type-7 LSA通告默认路由

我们上一个实验配置了NSSA的完全末节，配置之后的默认路由将自动进行通告，它是以type-3 LSA通告的

下面我们配置 NSSA ABR路由器使用Type-7 LSA通告默认路由

【实验拓扑】

 

【实验基本配置】

1、按照上图配置接口地址及OSPF

2、配置AREA1为NSSA区域

3、R6上配置静态路由160.1.60.0/24 到 Null0，重定向到OSPF中

4、R1上配置更高的路由器ID150.1.100.100，使得LSA7转换LSA5在R1上进行

【实验要求】

配置 ABR路由器R1与R4使用Type-7 LSA通告默认路由

并配置默认路由的cost为100

 

【实验配置】

R1&R4
 

router ospf 1

area 1 nssa default-information-originate metric 100

 

【实验验证】

配置之前-------------------------------------------------------->>

R6#show ip route ospf

155.1.0.0/24 is subnetted, 2 subnets

O IA 155.1.0.0 [110/65] via 155.1.146.1, 00:46:49, GigabitEthernet0/1

150.1.0.0/16 is variably subnetted, 4 subnets, 2 masks

O IA 150.1.5.5/32 [110/66] via 155.1.146.1, 00:00:15, GigabitEthernet0/1

O 150.1.4.4/32 [110/2] via 155.1.146.4, 00:46:49, GigabitEthernet0/1

O 150.1.1.1/32 [110/2] via 155.1.146.1, 00:46:49, GigabitEthernet0/1

配置之后-------------------------------------------------------->>

R6#show ip route ospf

155.1.0.0/24 is subnetted, 2 subnets

O IA 155.1.0.0 [110/65] via 155.1.146.1, 00:00:33, GigabitEthernet0/1

150.1.0.0/16 is variably subnetted, 4 subnets, 2 masks

O IA 150.1.5.5/32 [110/66] via 155.1.146.1, 00:00:33, GigabitEthernet0/1

O 150.1.4.4/32 [110/2] via 155.1.146.4, 00:03:01, GigabitEthernet0/1

O 150.1.1.1/32 [110/2] via 155.1.146.1, 00:03:01, GigabitEthernet0/1

O*N2 0.0.0.0/0 [110/100] via 155.1.146.4, 00:00:03, GigabitEthernet0/1

[110/100] via 155.1.146.1, 00:00:03, GigabitEthernet0/1

使用N2标志，为类型7的LSA。

 

【实验基本配置】

R1:

interface Fa 0/0

ip address 155.1.146.1 255.255.255.0

no shut

!

interface Serial 0/0

encapsulation frame-relay

no frame-relay inverse-arp

ip address 155.1.0.1 255.255.255.0

frame-relay map ip 155.1.0.5 105

frame-relay map ip 155.1.0.4 105

ip ospf priority 0

no shutdown

!

interface Loopback0

ip address 150.1.1.1 255.255.255.0

!

router ospf 1

router-id 150.1.100.100

network 155.1.146.1 0.0.0.0 area 1

network 150.1.1.1 0.0.0.0 area 1

network 155.1.0.1 0.0.0.0 area 0

area 1 nssa

 

R4:

interface Eth 0/1

ip address 155.1.146.4 255.255.255.0

!

interface Serial 0/0

encapsulation frame-relay

no frame-relay inverse-arp

ip address 155.1.0.4 255.255.255.0

frame-relay map ip 155.1.0.5 405

frame-relay map ip 155.1.0.1 405

ip ospf priority 0

!

interface Loopback0

ip address 150.1.4.4 255.255.255.0

!

router ospf 1

router-id 150.1.4.4

network 155.1.146.4 0.0.0.0 area 1

network 150.1.4.4 0.0.0.0 area 1

network 155.1.0.4 0.0.0.0 area 0

area 1 nssa

 

R5:

interface Serial 0/0

encapsulation frame-relay

no frame-relay inverse-arp

ip address 155.1.0.5 255.255.255.0

frame-relay map ip 155.1.0.4 504

frame-relay map ip 155.1.0.1 501

!

interface Loopback0

ip address 150.1.5.5 255.255.255.0

！

router ospf 1

router-id 150.1.5.5

network 150.1.5.5 0.0.0.0 area 0

network 155.1.0.5 0.0.0.0 area 0

neighbor 155.1.0.4

neighbor 155.1.0.1

area 1 nssa

R6:

i

 

 

 

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