CCNA---静态路由

目录概念实例搭建拓扑图实验要求配置过程划分子网配置各个路由器的IP地址配置下一跳在R1上配置DHCP在PC上设定通过DHCP获取IP地址

目录

概念

由网络管理员手工为路由器指定路径叫静态路由。

实例

搭建拓扑图

实验要求

1.内网ip基于172.16.0.0/16进行子网划分 2.除了R2 - R4路由器各有两个环回接口 3.R1下PC自动获取IP地址 4.全网可达 5.尽量减少路由条目 6.R4 - R5之间正常走100M线路，100故障走10M，备份

配置过程

划分子网

172.16.0.0 /16

172.16. 000 00000.0 255.255. 000 00000.0 借三位

172.16.0.0 /20—借1位，作为DHCP下放网段 172.16.0.0 /21—R1–PC1 172.16.16.0 /21—R1–PC2

主干道网络域： 172.16.32.0 /20 172.16.64.0 /20 172.16.128.0 /20 172.16.96.0 /20 172.16.160.0 /20 172.16.192.0 /20 172.16.224.0 /20

配置各个路由器的IP地址

R1路由器： Rourter1>enable Rourter1#configure terminal Rourter1(config)#hostname R1 R1 (config)#no ip domain-lookup //关闭域名解析 R1 (config)#line console 0 R1 (config-line)#logging synchronous //开启日志同步 R1 (config-line)#exec-timeout 0 0 //永不超时 R1 (config-line)#exit R1 (config)# interface FastEthernet0/0 R1 (config-if)#ip address 172.16.32.1 255.255.240.0 R1 (config-if)no shutdown R1 (config-if)interface FastEthernet1/0 R1 (config-if)ip address 172.16.128.1 255.255.240.0 R1 (config-if)no shutdown R1 (config-if)interface FastEthernet2/0 R1 (config-if)ip address 172.16.16.1 255.255.248.0 R1 (config-if)no shutdown R1 (config-if)interface FastEthernet2/1 R1 (config-if)ip address 172.16.0.1 255.255.248.0 R1 (config-if)no shutdown R1 (config-if)#exit R1 (config)#

R2路由器： Rourter2>enable Rourter2#configure terminal Rourter2 (config)#hostname R2 R2(config)#no ip domain-lookup R2 (config)#line console 0 R2 (config-line)#logging synchronous R2 (config-line)#exec-timeout 0 0 R2 (config-line)#exit R2 (config)# interface FastEthernet0/0 R2 (config-if)# ip address 172.16.32.2 255.255.240.0 R2 (config-if)#no shutdown R2 (config-if)# interface FastEthernet1/0 R2 (config-if)#ip address 172.16.64.1 255.255.240.0 R2 (config-if)#no shutdown R2 (config-if)#exit R2 (config)#

R3路由器： Rourter3>enable Rourter3#configure terminal Rourter3 (config)#hostname R3 R3(config)#no ip domain-lookup R3 (config)#line console 0 R3 (config-line)#logging synchronous R3 (config-line)#exec-timeout 0 0 R3 (config-line)#exit R3 (config)#interface FastEthernet0/0 R3 (config-if)#ip address 172.16.96.1 255.255.240.0 R3 (config-if)#no shutdown R3 (config-if)#interface FastEthernet1/0 R3 (config-if)#ip address 172.16.128.2 255.255.240.0 R3 (config-if)#no shutdown R3 (config-if)#exit R3 (config)#

R4路由器： Rourter4>enable Rourter4#configure terminal Rourter4 (config)#hostname R4 R4(config)#no ip domain-lookup R4 (config)#line console 0 R4 (config-line)#logging synchronous R4 (config-line)#exec-timeout 0 0 R4 (config-line)#exit R4 (config)#interface FastEthernet0/0 R4 (config-if)#ip address 172.16.96.2 255.255.240.0 R4 (config-if)#no shutdown R4 (config-if)#interface FastEthernet1/0 R4 (config-if)#ip address 172.16.64.2 255.255.240.0 R4 (config-if)#no shutdown R4 (config-if)#interface FastEthernet2/0 R4 (config-if)#ip address 172.16.160.1 255.255.240.0 R4 (config-if)#no shutdown R4 (config-if)#interface FastEthernet2/1 R4 (config-if)#ip address 172.16.192.1 255.255.240.0 R4 (config-if)#no shutdown R4 (config-if)#exit R4 (config)#

R5路由器： Rourter5>enable Rourter5#configure terminal Rourter5 (config)#hostname R5 R5(config)#no ip domain-lookup R5 (config)#line console 0 R5 (config-line)#logging synchronous R5 (config-line)#exec-timeout 0 0 R5 (config-line)#exit R5 (config)#interface FastEthernet0/0 R5 (config-if)#ip address 202.100.1.1 255.255.255.0 R5 (config-if)#no shutdown R5 (config-if)#interface FastEthernet2/0 R5 (config-if)#ip address 172.16.160.2 255.255.240.0 R5 (config-if)#no shutdown R5 (config-if)#interface FastEthernet2/1 R5 (config-if)#ip address 172.16.192.2 255.255.240.0 R5 (config-if)#no shutdown R5 (config-if)#exit R5 (config)#

配置下一跳

R1路由器： R1 (config)#ip route 172.16.0.0 255.255.240.0 Null 0 //空接口防环 R1 (config)#ip route 172.16.64.0 255.255.240.0 172.16.32.2 R1 (config)#ip route 172.16.96.0 255.255.240.0 172.16.128.2 R1 (config)#ip route 172.16.160.0 255.255.240.0 172.16.32.2 R1 (config)#ip route 172.16.160.0 255.255.240.0 172.16.128.2 R1 (config)#ip route 172.16.192.0 255.255.240.0 172.16.32.2 R1 (config)#ip route 172.16.192.0 255.255.240.0 172.16.128.2 R1 (config)#ip route 202.100.1.0 255.255.255.0 172.16.128.2 R1 (config)#ip route 202.100.1.0 255.255.255.0 172.16.32.2 R1 (config)#ip route 0.0.0.0 0.0.0.0 202.100.1.1 //缺省，指向外网

R2路由器： R2 (config)#ip route 172.16.0.0 255.255.240.0 172.16.32.1 //网络汇总 R2 (config)#ip route 172.16.96.0 255.255.240.0 172.16.64.2 R2 (config)#ip route 172.16.128.0 255.255.240.0 172.16.32.1 R2 (config)#ip route 172.16.160.0 255.255.240.0 172.16.64.2 R2 (config)#ip route 172.16.192.0 255.255.240.0 172.16.64.2 R2 (config)#ip route 202.100.1.0 255.255.255.0 172.16.64.2 R2 (config)#end R2 #write //保存配置

R3路由器： R3 (config)#ip route 172.16.0.0 255.255.240.0 172.16.128.1 R3 (config)#ip route 172.16.32.0 255.255.240.0 172.16.128.1 R3 (config)#ip route 172.16.64.0 255.255.240.0 172.16.69.2 R3 (config)#ip route 172.16.160.0 255.255.240.0 172.16.96.2 R3 (config)#ip route 172.16.192.0 255.255.240.0 172.16.96.2 R3 (config)#ip route 202.100.1.0 255.255.255.0 172.16.96.2 R3 (config)#end R3 #write

R4路由器： R4 (config)#ip route 172.16.0.0 255.255.0.0 172.16.64.1 R4 (config)#ip route 172.16.0.0 255.255.0.0 172.16.96.1 R4 (config)#ip route 202.100.1.0 255.255.255.0 172.16.192.2 R4 (config)#ip route 202.100.1.0 255.255.255.0 172.16.160.2 100 //更改优先级，备份 R4 (config)#end R4 #write

R5路由器： R5 (config)#ip route 172.16.0.0 255.255.0.0 172.16.192.1 R5 (config)#ip route 172.16.0.0 255.255.0.0 172.16.160.1 100 R5 (config)#end R5 #write

在R1上配置DHCP

R1 (config)#ip dhcp pool PC1 //建立地址池 R1 (dhcp-config)#network 172.16.16.0 255.255.248.0 //宣告下放网段 R1 (dhcp-config)#default-router 172.16.16.1 //绑定接口 R1 (dhcp-config)#dns-server 8.8.8.8 R1 (dhcp-config)#exit R1 (config)#ip dhcp pool PC2 R1 (dhcp-config)#network 172.16.0.0 255.255.248.0 R1 (dhcp-config)#default-router 172.16.0.1 R1 (dhcp-config)#dns-server 8.8.8.8 R1 (dhcp-config)#exit R1 (config)#end R1 #write

在PC上设定通过DHCP获取IP地址

此时全网可达。