CCNP-帧中继在ospf中的应用-P2P-P2MP-Virlink虚链路解决不连续区域

实验拓扑图：

实验需求：

R1、R3是点对点

R1、R4R5是点到多点

全网互通

实验参考配置：

FR全互联

R2#show frame-relay route 

Input Intf      Input Dlci      Output Intf     Output Dlci     Status

Serial0/0       301             Serial0/3       103             active

Serial0/1       401             Serial0/3       104             active

Serial0/2       501             Serial0/3       105             active

Serial0/3       103             Serial0/0       301             active

Serial0/3       104             Serial0/1       401             active

Serial0/3       105             Serial0/2       501             active

 

interface Serial0/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 clock rate 64000

 frame-relay lmi-type cisco

 frame-relay intf-type dce

 frame-relay route 301 interface Serial0/3 103

!

interface Serial0/1

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 clock rate 64000

 frame-relay lmi-type cisco

 frame-relay intf-type dce

 frame-relay route 401 interface Serial0/3 104

!

interface Serial0/2

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 clock rate 64000

 frame-relay lmi-type cisco

 frame-relay intf-type dce

 frame-relay route 501 interface Serial0/3 105

!

interface Serial0/3

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 clock rate 64000

 frame-relay lmi-type cisco

 frame-relay intf-type dce

 frame-relay route 103 interface Serial0/0 301

 frame-relay route 104 interface Serial0/1 401

 frame-relay route 105 interface Serial0/2 501

R1#

interface Loopback0

 ip address 1.1.1.1 255.255.255.0

!

interface Serial0/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

!

interface Serial0/0.1 point-to-point

 ip address 13.1.1.1 255.255.255.0

 frame-relay interface-dlci 103   

!

interface Serial0/0.2 multipoint

 ip address 145.1.1.1 255.255.255.0

 frame-relay map ip 145.1.1.4 104 broadcast

 frame-relay map ip 145.1.1.5 105 broadcast

 no frame-relay inverse-arp

router ospf 1

 router-id 1.1.1.1

 log-adjacency-changes

 area 2 virtual-link 4.4.4.4

 network 1.1.1.1 0.0.0.0 area 0

 network 13.1.1.1 0.0.0.0 area 0

 network 145.1.1.1 0.0.0.0 area 2

 neighbor 5.5.5.5

 neighbor 4.4.4.4

R4：

interface Loopback0

 ip address 4.4.4.4 255.255.255.0

!

interface Serial0/0

 ip address 145.1.1.4 255.255.255.0

 encapsulation frame-relay

 serial restart-delay 0

 frame-relay map ip 145.1.1.1 401 broadcast

 frame-relay map ip 145.1.1.5 401 broadcast

 no frame-relay inverse-arp

!

interface Ethernet1/0

 ip address 46.1.1.4 255.255.255.0

 half-duplex

!

router ospf 1

 router-id 4.4.4.4

 log-adjacency-changes

 area 2 virtual-link 1.1.1.1

 network 4.4.4.4 0.0.0.0 area 1

 network 46.1.1.4 0.0.0.0 area 1

 network 145.1.1.4 0.0.0.0 area 2

 neighbor 5.5.5.5

 neighbor 1.1.1.1

!

R5：

interface Loopback0

 ip address 5.5.5.5 255.255.255.0

!

interface Serial0/0

 ip address 145.1.1.5 255.255.255.0

 encapsulation frame-relay

 serial restart-delay 0

 frame-relay map ip 145.1.1.1 501 broadcast

 frame-relay map ip 145.1.1.4 501 broadcast

 no frame-relay inverse-arp

router ospf 1

 router-id 5.5.5.5

 log-adjacency-changes

 network 5.5.5.5 0.0.0.0 area 2

 network 145.1.1.5 0.0.0.0 area 2

 neighbor 4.4.4.4

 neighbor 1.1.1.1

R3：

interface Loopback0

 ip address 3.3.3.3 255.255.255.0

!

interface Serial0/0

 ip address 13.1.1.3 255.255.255.0

 encapsulation frame-relay

 ip ospf network point-to-point

 serial restart-delay 0

!  

router ospf 1

 log-adjacency-changes

 network 0.0.0.0 255.255.255.255 area 0

测试

R6# ping  1.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:

!!!!!

最后看一下R6的路由表R6#show ip rou

     1.0.0.0/32 is subnetted, 1 subnets

O IA    1.1.1.1 [110/75] via 46.1.1.4, 00:01:48, Ethernet0/0

     3.0.0.0/32 is subnetted, 1 subnets

O IA    3.3.3.3 [110/139] via 46.1.1.4, 00:01:48, Ethernet0/0

     4.0.0.0/32 is subnetted, 1 subnets

O       4.4.4.4 [110/11] via 46.1.1.4, 00:01:57, Ethernet0/0

     6.0.0.0/24 is subnetted, 1 subnets

C       6.6.6.0 is directly connected, Loopback0

     145.1.0.0/24 is subnetted, 1 subnets

O IA    145.1.1.0 [110/74] via 46.1.1.4, 00:01:57, Ethernet0/0

     46.0.0.0/24 is subnetted, 1 subnets

C       46.1.1.0 is directly connected, Ethernet0/0

     13.0.0.0/24 is subnetted, 1 subnets

O IA    13.1.1.0 [110/138] via 46.1.1.4, 00:01:51, Ethernet0/0

时间不早了，就简单把配置刷一下吧，谢谢朋友们。

感谢node！