JSP页面缓存设置及其它

实验环境GNS3 ios：c3725-ipbasek9-mz.124-11.t2.bin

拓扑：





这里在R2和R3上各开了loopback接口，并且IP地址都是A类IP1.0.0.0 网段地址，这样做的原因就是验证RIPv1是有类路由协议。

R1 R2 R3 的配置都差不多 ，下面只给出R1的配置：

hostname R1

!

boot-start-marker

boot-end-marker

!

!

no aaa new-model

memory-size iomem 5

ip cef

!

!

!

!

no ip domain lookup

multilink bundle-name authenticated

!

!

!

!

!

!

!

!

!

interface FastEthernet0/0

ip address 192.168.1.1 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet0/1

ip address 192.168.2.1 255.255.255.0

duplex auto

speed auto

!

router rip

version 1

network 192.168.1.0

network 192.168.2.0

!

!

在R1上用show ip route可以看到路由情况

R1# show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

R 1.0.0.0/8 [120/1] via 192.168.2.2, 00:00:02, FastEthernet0/1 //这里会发现本来应该是两条路由，这里变成

[120/1] via 192.168.1.2, 00:00:22, FastEthernet0/0 //了一条，因为RIP更新数据是不携带子网掩码

C 192.168.1.0/24 is directly connected, FastEthernet0/0

C 192.168.2.0/24 is directly connected, FastEthernet0/1

R1#

下面是在R2上show ip route的结果

R2#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

1.0.0.0/24 is subnetted, 1 subnets

C 1.1.2.0 is directly connected, Loopback1

C 192.168.1.0/24 is directly connected, FastEthernet0/1 //这里没有1.1.1.0网段的路由是因为

R 192.168.2.0/24 [120/1] via 192.168.1.1, 00:00:17, FastEthernet0/1 //R1不会发送从相同接口学来的相同路R2# //由这叫水平分割

默认水平分割是开启的：开启命令：R2(config-if)#ip split-horizon

还有就是RIPv1更新地址是广播地址255.255.255.255，这和v2是有区别的
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