技术原理: Ospd开放式最短路径优先协议。是目前网络中应用最广泛的路由协议之一。属于内部网络路由协议。能够适应各种规模的网络环境,是典型的链路状态协议。Ospf路由协议通过向全网扩散本设备的链路状态信息,使网络中每台设备最终同步一个具有全网链路状态的数据库,然后路由器采用spf算法。以自己为根,计算到达网络的最短路径,最终形成全网路由信息。 实验步骤: 1.在本实验中的三层交换机上划分vlan10和vlan20,其中vlan10用于连接主机,vlan20用于连接R1. 2.路由器之间通过v35电缆通过串口连接,DCE端连接在R1上,配置其时钟频率64000. 3.主机和交换机通过直连线,主机与路由器通过交叉线连接。 4.在S3560上配置ospf路由协议。 5.在路由器R1、R2上配置ospf路由协议 6.将pc1、pc2主机默认网关设置为与直连网络设备接口IP地址 7.验证pc1、pc2主机之间可以互相通 实验图:
S3650配置: Switch>en Switch>enable Switch#config t Enter configuration commands, one perline. End with CNTL/Z. Switch(config)#host s3650 s3650(config)#vlan 10 s3650(config-vlan)#name v10 s3650(config-vlan)#exit s3650(config)#vlan 20 s3650(config-vlan)#name v20 s3650(config-vlan)#exit s3650(config)#int fa0/10 s3650(config-if)#switchport access vlan 10 s3650(config-if)#exit s3650(config)#int fa0/20 s3650(config-if)#switchport access vlan 20 s3650(config-if)#exit s3650(config)#int vlan 10
%LINK-5-CHANGED: Interface Vlan10, changedstate to up
%LINEPROTO-5-UPDOWN: Line protocol onInterface Vlan10, changed state to up s3650(config-if)#ip address 192.168.1.1255.255.255.0 s3650(config-if)#no shut s3650(config-if)#exit s3650(config)#int vlan 20 s3650(config-if)# %LINK-5-CHANGED: Interface Vlan20, changedstate to up
s3650(config-if)#ip address 192.168.3.1255.255.255.0 s3650(config-if)#no shut s3650(config-if)#router ospf 1 s3650(config-router)#network 192.168.1.00.0.0.255 area 0 s3650(config-router)#network 192.168.3.00.0.0.255 area 0 s3650(config-router)#exit s3650(config)#exit s3650# %SYS-5-CONFIG_I: Configured from console byconsole R1配置: Router>en Router#config t Enter configuration commands, one perline. End with CNTL/Z. Router(config)#host R1 R1(config)#int fa0/0 R1(config-if)#ip address 192.168.3.2255.255.255.0 R1(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0,changed state to up
%LINEPROTO-5-UPDOWN: Line protocol onInterface FastEthernet0/0, changed state to up
R1(config-if)#exit R1(config)#int serial2/0 R1(config-if)#clock rate 64000 R1(config-if)#ip address 192.168.4.1255.255.255.0 R1(config-if)#no shut
%LINK-5-CHANGED: Interface Serial2/0,changed state to down R1(config-if)#exit R1(config)#router ospf 1 R1(config-router)#network 192.168.3.00.0.0.255 area 0 R1(config-router)#network 01:10:13: %OSPF-5-ADJCHG: Process 1, Nbr192.168.3.1 on FastEthernet0/0 from LOADING to FULL, Loading Done
% Incomplete command. R1(config-router)#network 192.168.4.00.0.0.255 area 0 R1(config-router)# R2配置: Router>en Router#config t Enter configuration commands, one perline. End with CNTL/Z. Router(config)#host R2 R2(config)#int fa0/0 R2(config-if)#ip address 192.168.2.1255.255.255.0 R2(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0,changed state to up
%LINEPROTO-5-UPDOWN: Line protocol onInterface FastEthernet0/0, changed state to up
R2(config-if)#exit R2(config)#int serial2/0 R2(config-if)#ip address 192.168.4.2255.255.255.0 R2(config-if)#no shut
R2(config-if)# %LINK-5-CHANGED: Interface Serial2/0,changed state to up
R2(config-if)#exit R2(config)# %LINEPROTO-5-UPDOWN: Line protocol onInterface Serial2/0, changed state to up
R2(config)#router ospf 1 R2(config-router)#network 192.168.2.00.0.0.255 area 0 R2(config-router)#network 192.168.4.00.0.0.255 area 0 R2(config-router)#exit R2(config)# 测试: 从pc2 pingpc1.不通 在s3650上配置: s3650#config t Enter configuration commands, one perline. End with CNTL/Z. s3650(config)#ip routing s3650(config)#exit s3650# 此时测试已通
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