說明：此Lab練習將OSPF Redistribute到EIGRP並利用Prefix-List與Route-map
Redistribute到EIGRP或RIP，預設Metric為無限大，所以需設定Metric
實作條件：
一、OSPF Redistribute into EIGRP 100
二、EIGRP 100 Redistribute into OSPF
只允許 Private Network Redistribute 進入
並設定OSPF Cast=100、Type=E1、Tag=100
三、OSPF External AD=130
四、IP SLA
Router A 建立 Default Route 兩條
Track ROB兩個介面(10.12.12.2、20.12.12.2)
優先走20.12.12.2，當Track Fail時走10.12.12.2
RO_A Show Run設定如下：
RO_A#sh run
Building configuration...
Current configuration : 1551 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname RO_A
!
boot-start-marker
boot-end-marker
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
ip sla monitor 100
type echo protocol ipIcmpEcho 20.12.12.2 source-interface FastEthernet0/1
timeout 2000
frequency 3
建立一條IP SLA Monitor號碼為100，每3秒從F0/1介面發ping到20.12.12.2
ip sla monitor schedule 100 life forever start-time now
設定ip sla 100的排程從現在開始並一直執行
ip sla monitor 200
type echo protocol ipIcmpEcho 10.12.12.2 source-interface Serial0/1
timeout 2000
frequency 3
建立一條IP SLA Monitor號碼為200，每3秒從S0/1介面發ping到10.12.12.2
ip sla monitor schedule 200 life forever start-time now
設定ip sla 200的排程從現在開始並一直執行
!
track 1 rtr 100 reachability
track 2 rtr 200 reachability
!
interface FastEthernet0/0
ip address 192.168.12.254 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
!
interface FastEthernet0/1
ip address 20.12.12.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/1
ip address 10.12.12.1 255.255.255.0
clock rate 128000
!
router ospf 100
log-adjacency-changes
network 10.12.12.0 0.0.0.255 area 0
network 20.12.12.0 0.0.0.255 area 0
network 192.168.12.0 0.0.0.255 area 0
distance ospf external 130 外部進OSPF的AD值設成130
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 20.12.12.2 track 1
經過Track 1判斷後成功才會有這條路由並預設AD值為1
ip route 0.0.0.0 0.0.0.0 10.12.12.2 2 track 2
經過Track 2判斷後成功才會有這條路由並預設AD值為2
!
no ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
login
!
End
RO_B Show Run設定如下：
RO_B(config-if)#do sh run
Building configuration...
Current configuration : 1390 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname RO_B
!
boot-start-marker
boot-end-marker
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 10.140.2.2 255.255.255.0
!
interface FastEthernet0/1
ip address 20.12.12.2 255.255.255.0
duplex auto
speed auto
!
interface Serial0/1
ip address 10.12.12.2 255.255.255.0
!
router eigrp 100
redistribute ospf 100 metric 1 1 1 1 1
將OSPF 100 Redistribute進EIGRP(預設Metric為∞)並將調整設定metric
network 10.140.2.2 0.0.0.0
no auto-summary
!
router ospf 100
log-adjacency-changes
redistribute eigrp 100 subnets route-map ospf_to_eigrp
參照Route-Map ospf_to_eigrp，將EIGRP 100 Redistribute到OSPF
Subnets是將有切割過的子網段皆可Redistribute，若沒加，只能Redistribute Classful Subnets
network 10.12.12.2 0.0.0.0 area 0
network 20.12.12.2 0.0.0.0 area 0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip prefix-list A seq 5 permit 10.0.0.0/8 le 32 只允許A Class的Private Network
ip prefix-list A seq 10 permit 172.16.0.0/12 le 32 只允許B Class的Private Network
ip prefix-list A seq 15 permit 192.168.0.0/16 le 32 只允許C Class的Private Network
!
route-map ospf_to_eigrp permit 10
match ip address prefix-list A
set metric 100
set metric-type type-1
set tag 100
建立一條Route-map，名稱為ospf_to_eigrp
符合Prefix-List A的ip add，設定metric=100、type=E1、tag=100
!
control-plane
!
line con 0
line aux 0
line vty 0 4
login
!
End
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