首先说明下我的拓扑图 R3 R4 R2 配置ospf，R1 R0 配置rip

配置如下：

 R3配置：

 interface FastEthernet0/0
 ip address 192.168.1.1 255.255.255.0
 speed auto
 full-duplex

router ospf 1
 log-adjacency-changes
 network 192.168.1.0 0.0.0.255 area 0
 network 192.186.1.0 0.0.0.255 area 0

R4 配置如下：

interface FastEthernet0/0
 ip address 192.168.3.2 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet1/0
 ip address 192.168.4.1 255.255.255.0
 duplex auto
 speed auto
!
router rip
 network 192.168.3.0
 network 192.168.4.0

R2 配置：

interface Ethernet0/0
 ip address 192.168.1.2 255.255.255.0
 full-duplex
!
interface Ethernet0/1
 ip address 192.168.2.2 255.255.255.0
 full-duplex
!
interface Ethernet0/2
 ip address 192.168.3.1 255.255.255.0
 ip policy route-map jdr
 full-duplex

router ospf 1
 log-adjacency-changes
 redistribute rip subnets route-map jin
 network 192.168.1.0 0.0.0.255 area 0
 network 192.168.2.0 0.0.0.255 area 0
!
router rip
 redistribute ospf 1 route-map xiao
 network 192.168.3.0

access-list 1 permit 192.168.3.0
access-list 1 permit 192.168.4.0
access-list 1 permit 192.168.5.0
access-list 2 permit 192.168.1.0
access-list 2 permit 192.168.2.0
access-list 2 permit 192.168.3.0
access-list 3 permit 192.168.3.0
access-list 4 permit 192.168.4.0
!
route-map xiao permit 10
 match ip address 2
 set metric 1

route-map jin permit 10
 match ip address 1
 set metric 10
 set metric-type type-1
!
route-map jdr permit 10
 match ip address 3
 set ip default next-hop  192.168.1.1
!
route-map jdr permit 20
 match ip address 4
 set ip default next-hop 192.168.2.1

R1 配置：

interface FastEthernet0/0
 ip address 192.168.3.2 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet1/0
 ip address 192.168.4.1 255.255.255.0
 duplex auto
 speed auto
!
router rip
 network 192.168.3.0
 network 192.168.4.0

R0 配置：

interface FastEthernet0/0
 ip address 192.168.4.2 255.255.255.0
 duplex auto
 speed auto

router rip
 network 192.168.4.0

。我们验证下看路由表

R4 的路由表：