配置CISCO路由器和IP地址.ppt
配置Cisco路由器,路由器的配置模式,保存配置,将当前配置保存到NVRAM,RouterX#RouterX#copy running-config startup-configDestination filename startup-config?Building configurationRourterX#,配置路由器密码,配置路由器标识,Console线路命令,RouterX(config)#line console 0RouterX(config-line)#exec-timeout 20 30,RouterX(config)#line console 0RouterX(config-line)#logging synchronous,Modifies console session timeout,Redisplays interrupted console input,RouterX(config)#interface type numberRouterX(config-if)#,type includes serial,ethernet,token ring,fddi,hssi,loopback,dialer,null,async,atm,bri,tunnel,and so onnumber is used to identify individual interfaces,RouterX(config-if)#exit,Quits from current interface configuration mode,RouterX(config)#interface type slot/portRouterX(config-if)#,For modular routers,selects an interface,配置一个接口,RouterX#configure terminalRouterX(config)#interface serial 0 RouterX(config-if)#no shutdown%LINK-3-UPDOWN:Interface Serial0,changed state to up%LINEPROTO-5-UPDOWN:Line Protocol on Interface Serial0,changed state to up,Enables an interface that is administratively shut down,RouterX#configure terminalRouterX(config)#interface serial 0 RouterX(config-if)#shutdown%LINK-5-CHANGED:Interface Serial0,changed state to administratively down%LINEPROTO-5-UPDOWN:Line protocol on Interface Serial0,changed state to down,Administratively turns off an interface,关闭或启用一个端口,路由器 show interfaces 命令,RouterX#show interfacesEthernet0 is up,line protocol is up Hardware is Lance,address is 00e0.1e5d.ae2f(bia 00e0.1e5d.ae2f)MTU 1500 bytes,BW 10000 Kbit,DLY 1000 usec,rely 255/255,load 1/255 Encapsulation ARPA,loopback not set,keepalive set(10 sec)ARP type:ARPA,ARP Timeout 04:00:00 Last input 00:00:07,output 00:00:08,output hang never Last clearing of show interface counters never Queueing strategy:fifo Output queue 0/40,0 drops;input queue 0/75,0 drops 5 minute input rate 0 bits/sec,0 packets/sec 5 minute output rate 0 bits/sec,0 packets/sec 81833 packets input,27556491 bytes,0 no buffer Received 42308 broadcasts,0 runts,0 giants,0 throttles 1 input errors,0 CRC,0 frame,0 overrun,1 ignored,0 abort 0 input packets with dribble condition detected 55794 packets output,3929696 bytes,0 underruns 0 output errors,0 collisions,1 interface resets 0 babbles,0 late collision,4 deferred 0 lost carrier,0 no carrier 0 output buffer failures,0 output buffers swapped out,唯一的地址可以在两个终端工作站之间互相通信 路由器缺省依赖于IP包中的目的地址进行选路操作.如果做路由策略,可以依赖源地址进行路由选路.Location is represented by an address,介绍IP地址,IP寻址,IP地址分类,主机地址,不划分子网的寻址,划分子网来寻址,子网寻址,子网掩码,十进制与二进制的对应关系,在网络掩码中缺省是不携带子网的,不携带子网的网络掩码,从图中可以看到,从主机位借用8位作为子网位,携带子网的网络掩码,携带子网的网络掩码(继续),从主机位借用10位作为子网位.,显示接口状态,检查一个串行接口的配置,总结,在授权的EXEC模式下，可以通过configure terminal命令进入全局配置模式，进而进入路由器所有的配置模式进行配置.路由器的主要作用是将数据包从一个网络传输到另一个网络。未完成数据包传输的功能，发送或接收数据包的接口参数，如IP地址，带宽等等，必须在接口模式下配置。,总结(续),在TCP/IP协议栈中，所有的断点之间的通信依靠IP地址进行寻址。路由器接口配置完成之后，可使用show命令对端口的状态和配置进行查看,
