EIGRP、OSPF、IS-IS路由协议之间的重发布实例

EIGRP OSPF IS-IS 路由协议之间的重发布实例
                                       作者:骄
 
 
R1#sh run
Building configuration...
 
Current configuration : 1835 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
multilink bundle-name authenticated
!
interface Loopback0
 ip address 1.1.1 .1 255.255.255.0
!        
!
interface Serial1/0
 ip address 11.1.1 .1 255.255.255.0
 serial restart-delay 0
 clock rate 64000
!
interface Serial1/1
 ip address 12.1.1 .1 255.255.255.0
 serial restart-delay 0
 clock rate 64000
!
interface Serial1/2
 ip address 13.1.1 .1 255.255.255.0
 ip router isis
 serial restart-delay 0
 clock rate 64000
!
router eigrp 100
 redistribute connected
 redistribute ospf 100 metric 1000 10 255 1 1500
 redistribute isis level-1-2 metric 3000 10 255 1 1500
 network 11.1.1 .0 0.0.0.255
 no auto-summary
!
router ospf 100
 log-adjacency-changes
 redistribute connected subnets
 redistribute eigrp 100 metric 2000 subnets
 redistribute isis level-1-2 metric 5000 subnets
 network 12.1.1 .0 0.0.0.255 area 0
!
router isis
 net 64.0012.0000.0000.0001.00
 redistribute connected level-1
 redistribute eigrp 100 metric 20 level-1-2
 redistribute ospf 100 metric 20 level-1-2
!
End
R2#sh run
Building configuration...
 
Current configuration : 1374 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname R2
!
multilink bundle-name authenticated
!
interface Loopback0
 ip address 2.2.2 .2 255.255.255.0
!
interface Loopback1
 ip address 10.1.1 .1 255.255.255.0
!
interface Loopback2
 ip address 10.1.2 .1 255.255.255.0
!
interface Loopback3
 ip address 10.1.3 .1 255.255.255.0
!
interface Serial1/1
 ip address 11.1.1 .2 255.255.255.0
 serial restart-delay 0
!
router eigrp 100
 network 10.1.1 .0 0.0.0.255
 network 10.1.2 .0 0.0.0.255
 network 10.1.3 .0 0.0.0.255
 network 11.1.1 .0 0.0.0.255
 no auto-summary
!
End
 
 
R3#sh run
Building configuration...
 
Current configuration : 1402 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname R3
multilink bundle-name authenticated
!
!
interface Loopback0
 ip address 172.16.1.1 255.255.255.0
!
interface Loopback1
 ip address 172.16.2.1 255.255.255.0
!
interface Loopback2
 ip address 172.16.3.1 255.255.255.0
!
interface Serial1/1
 ip address 12.1.1 .2 255.255.255.0
 ip ospf priority 0
!
router ospf 100
 router-id 3.3.3 .3
 log-adjacency-changes
 network 12.1.1 .0 0.0.0.255 area 0
 network 172.16.1.0 0.0.0 .255 area 0
 network 172.16.2.0 0.0.0 .255 area 0
 network 172.16.3.0 0.0.0 .255 area 0
!
no ip http server
no ip http secure-server
End
 
 
 
R3#sh run
Building configuration...
 
Current configuration : 1402 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
interface Loopback0
 ip address 172.16.1.1 255.255.255.0
!
interface Loopback1
 ip address 172.16.2.1 255.255.255.0
!
interface Loopback2
 ip address 172.16.3.1 255.255.255.0
!
interface Serial1/1
 ip address 12.1.1 .2 255.255.255.0
 ip ospf priority 0
 serial restart-delay 0
!
router ospf 100
 router-id 3.3.3 .3
 log-adjacency-changes
 network 12.1.1 .0 0.0.0.255 area 0
 network 172.16.1.0 0.0.0 .255 area 0
 network 172.16.2.0 0.0.0 .255 area 0
 network 172.16.3.0 0.0.0 .255 area 0
!
no ip http server
no ip http secure-server
!
End
 
 
R4#sh run
Building configuration...
 
Current configuration : 1285 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
interface Loopback0
 ip address 192.168.1.1 255.255.255.0
!
interface Loopback1
 ip address 192.168.2.1 255.255.255.0
!
interface Loopback2
 ip address 192.168.3.1 255.255.255.0
!
interface Serial1/1
 ip address 13.1.1 .2 255.255.255.0
 ip router isis
 serial restart-delay 0
!
router isis
 net 64.0012.0000.0000.0002.00
 redistribute connected
!        
no ip http server
no ip http secure-server
end
实验总结:
EIGRP OSPF IS-IS 路由协议之间的重发布,对于 EIGRP OSPF IS-IS 重发布时默认不会通过直连子网,所以我们需要加上 redistribute connected 的命令。其他协议重分发进 EIGRP 时,需要添加上度量值(包括:带宽、延迟、可靠性、负载和 MTU )。而对于集成 IS-IS 我们需要 redistribute isis level-1-2 ,不可单独为 L1 (为内部路由器)或者 L2 IS-IS 间主干路由器),在不同协议之间重分发,因此因此我们需要指定为 L-1-2 路由器。
此实验有待完善,希望大家继续扩展、应用多种协议或者策略上去。

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