eigrp rip ospf 静态路由重发布

                         路由重发布
                         ![这里写图片描述](https://img-blog.csdn.net/20180818154741263?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lfNjI4enlq/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70)

边界路由器的配置
router eigrp 1 只要其它路由协议往EIGRP导入都给五参数
redistribute rip metric 1000 0 100 100 100
redistribute ospf 1 metric 1000 100 100 100 1000
redistribute static metric 1000 100 100 100 1000
redistribute connected metric 100 100 100 100 100
network 7.7.7.0 0.0.0.255
auto-summary
!
router ospf 1
log-adjacency-changes
redistribute rip subnets
redistribute eigrp 1 subnets
redistribute static subnets
redistribute connected subnets
network 5.5.5.0 0.0.0.255 area 0
!
router rip
redistribute eigrp 1 metric 15
redistribute ospf 1 metric 2
redistribute static metric 1
redistribute connected
network 1.0.0.0
!
ip route 4.4.4.0 255.255.255.0 3.3.3.2

注意1:
第一种路由协议计算METRIC值不一样。
RIP跳数 EIGRP带宽延迟 可靠性 负载 MTU
其它路由协议重分到OSPF的时候。要给其它进到OSPF的路由设置一个初始METRIC：
Router(config-router)#redistribute rip metric-type ?
1 Set OSPF External Type 1 metrics
2 Set OSPF External Type 2 metrics

Metric-type 1 导入到OSPF的条目初始值为20.并且这个条路由再传其它OSPF的路由器时会发累加+1。（E1）
Metric-type 2 （默认）:导入到OSPF的条目初始值为20.并且这个条路由再传其它OSPF的路由器时不会发累加。(E2)

特点：E1的路由要优先于E2的路由

Router(config)#router ospf 1
Router(config-router)#redistribute rip metric-type 1 subnets

注意2:
静态路由在导向所有动态路由协议的时候。必须加上。
Router(config)#router rip
Router(config-router)#redistribute connected
Router(config-router)#redistribute static metric 1
所有动态路由导向静态路的时候。在静态路由协议的路由器上配置默认路由。

重分布：配置是路由协议相交换设备上去配置.
因为这台设备有全网路由。
Router#show ip route
12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 12.0.0.0/8 [90/25676800] via 18.1.1.8, 00:07:25, Ethernet1/1
C 12.1.1.0/24 is directly connected, FastEthernet0/0
14.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 14.0.0.0/8 [90/25676800] via 18.1.1.8, 00:07:25, Ethernet1/1
C 14.1.1.0/24 is directly connected, Ethernet1/0
16.0.0.0/24 is subnetted, 1 subnets
C 16.1.1.0 is directly connected, FastEthernet0/1
18.0.0.0/24 is subnetted, 1 subnets
C 18.1.1.0 is directly connected, Ethernet1/1
R 23.0.0.0/8 [120/1] via 12.1.1.2, 00:00:22, FastEthernet0/0
45.0.0.0/24 is subnetted, 1 subnets
O 45.1.1.0 [110/11] via 14.1.1.4, 00:06:36, Ethernet1/0
67.0.0.0/24 is subnetted, 1 subnets
S 67.1.1.0 [1/0] via 16.1.1.6
D 89.0.0.0/8 [90/284160] via 18.1.1.8, 00:07:25, Ethernet1/1

路由表的拆分
Router#show ip route connected
C 12.1.1.0/24 is directly connected, FastEthernet0/0
C 14.1.1.0/24 is directly connected, Ethernet1/0
C 16.1.1.0/24 is directly connected, FastEthernet0/1
C 18.1.1.0/24 is directly connected, Ethernet1/1
Router#show ip route rip
18.0.0.0/24 is subnetted, 1 subnets
R 23.0.0.0/8 [120/1] via 12.1.1.2, 00:00:03, FastEthernet0/0
Router#show ip route ospf
45.0.0.0/24 is subnetted, 1 subnets
O 45.1.1.0 [110/11] via 14.1.1.4, 00:07:45, Ethernet1/0
Router#show ip route eigrp
12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 12.0.0.0/8 [90/25676800] via 18.1.1.8, 00:08:40, Ethernet1/1
14.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 14.0.0.0/8 [90/25676800] via 18.1.1.8, 00:08:40, Ethernet1/1
67.0.0.0/24 is subnetted, 1 subnets
D 89.0.0.0/8 [90/284160] via 18.1.1.8, 00:08:40, Ethernet1/1
重分的原理就是将本台设备的不同路由表进行交换。

RIP 与EIGRP进行相互导路由

开销值 ：不同路由协议的开销值计算方式不一样的。
Rip的开销值是跳数。最多支持15。
EIGRP的开销值是：（带宽 延迟 负载 可靠性 MTU）
Router(config)#router eigrp 10
Router(config-router)#redistribute rip metric 100 100 100 100 100
Router(config)#router rip
Router(config-router)#redistribute eigrp 10 metric 1

静态路由–OSPF相互导路由
Router(config)#router ospf 1
Router(config-router)#redistribute connected metric-type 2 subnets
Router(config-router)#redistribute static metric-type 1 subnets

将动态路由协议的网段导入到静态的时候，命令不支持，只有在静态路由协议的路由器上添加默认路由。

1：将静态路由导入到动态路由的时候都要导直连
2：往EIGRP导给五个值 ，往RIP导跳数不能超15，往OSPF导的时候两种类subnet