案例6路由器接口的基本配置Word文档下载推荐.docx
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R1(config-if)#
设置了路由器接口的IP地址,就确定了该接口直连的网络。
2)配置带宽
R1(config-if)#bandwidth?
<
1-10000000>
Bandwidthinkilobits
R1(config-if)#bandwidth10000//配置为10M带宽
以太网接口的带宽可自动设置,一般无需手动设置。
3)配置双工方式
R1(config-if)#duplex?
autoEnableAUTOduplexconfiguration
fullForcefullduplexoperation
halfForcehalf-duplexoperation
R1(config-if)#duplexhalf
%LINEPROTO-5-UPDOWN:
LineprotocolonInterfaceFastEthernet0/0,changedstatetodown
LineprotocolonInterfaceFastEthernet0/0,changedstatetoup
以太网接口的双工方式可自动协商,一般无需手动设置。
4)配置MAC地址
R1(config-if)#mac
R1(config-if)#doshintf0/0
FastEthernet0/0isup,lineprotocolisup(connected)
HardwareisLance,addressis(bia0005.5e63.4601)
……
地址已经改变!
一般无需手动设置。
5)激活与管理性关闭端口
R1(config-if)#shutdown//管理性关闭接口
%LINK-5-CHANGED:
InterfaceFastEthernet0/0,changedstatetoadministrativelydown//此信息提示接口已经管理性关闭!
LineprotocolonInterfaceFastEthernet0/0,changedstatetodown//此信息提示接口的线路协议已经关闭!
R1(config-if)#noshut//激活接口,注意:
路由器的接口缺省时是关闭的,配置IP地址之后,切记将接口激活!
InterfaceFastEthernet0/0,changedstatetoup
以上信息提示接口已经激活!
6)配置接口描述
R1(config-if)#descriptionThisisaFastEthernetinterface
此配置在案例2中已有解释。
7)配置最大传输单元
R1(config-if)#mtu?
64-1600>
MTUsizeinbytes
R1(config-if)#mtu1400
以太网接口mtu是固定,一般无需手动配置。
8)配置逻辑子接口
R1(config)#intfa0/0?
/.
R1(config)#intfa0/0.10
InterfaceFastEthernet0/0.10,changedstatetoup
LineprotocolonInterfaceFastEthernet0/0.10,changedstatetoup//注意:
以上信息提示子接口已经激活!
R1(config-subif)#?
步骤3:
配置串行接口。
R1(config)#ints0/0/0//注意串行接口的标识
R2#conft
R2(config)#ints0/0/0
R2(config-if)#ipaddr
R2(config-if)#
2)设置带宽
R2(config-if)#bandwidth?
R2(config-if)#bandwidth2048
3)设置DCE时钟
R2(config-if)#clockrate?
Speed(bitspersecond
1200
2400
4800
9600
19200
38400
56000
64000
72000
125000
128000
148000
250000
500000
800000
1000000
1300000
2000000
4000000
300-4000000>
Chooseclockratefromlistabove
R2(config-if)#clockrate128000
4)配置接口描述
5)配置数据链路层协议
R2#shints0/0/0
Serial0/0/0isup,lineprotocolisup(connected)
HardwareisHD64570
MTU1500bytes,BW2048Kbit,DLY20000usec,
reliability255/255,txload1/255,rxload1/255
EncapsulationHDLC,loopbacknotset,keepaliveset(10sec)
……//注意:
缺省时Cisco路由器串行接口的数据链路层封装HDLC。
R2#
R2(config-if)#en
R2(config-if)#encapsulation?
//PT中串行接口可封装3中协议
frame-relayFrameRelaynetworks//帧中继
hdlcSerialHDLCsynchronous//HDLC:
缺省
pppPoint-to-Pointprotocol//PPP
R2(config-if)#encapsulationppp//封装PPP
LineprotocolonInterfaceSerial0/0/0,changedstatetodown//封装PPP,注意PPP要求链路两端都要正确配置才能打开!
6)激活与管理性关闭端口
R2(config-if)#shutdown
InterfaceSerial0/0/0,changedstatetoadministrativelydown
R2(config-if)#noshut
InterfaceSerial0/0/0,changedstatetoup
7)配置逻辑子接口
R2(config)#ints0/0/1.100?
multipointTreatasamultipointlink
point-to-pointTreatasapoint-to-pointlink
cr>
R2(config-if)#encapsulationframe-relay
R2(config-if)#exit
R2(config)#ints0/0/1.100point-to-point
R2(config-subif)#
配置串行子接口要先封装协议,再创建子接口,且必须指定子接口的类型。
步骤3:
验证接口配置
1)验证以太网接口
R1#shintfa0/0
//第1个up表示物理层激活;
第2个up表示数据链路层激活。
HardwareisLance,addressis(bia00d0.bc94.2401)
Internetaddressis
MTU1500bytes,BW100000Kbit,DLY100usec,
EncapsulationARPA,loopbacknotset
ARPtype:
ARPA,ARPTimeout04:
00:
00,
Lastinput00:
08,output00:
05,outputhangnever
Lastclearingof"
showinterface"
countersnever
Inputqueue:
0/75/0(size/max/drops);
Totaloutputdrops:
0
Queueingstrategy:
fifo//队列策略
Outputqueue:
0/40(size/max)
5minuteinputrate0bits/sec,0packets/sec
5minuteoutputrate0bits/sec,0packets/sec
0packetsinput,0bytes,0nobuffer
Received0broadcasts,0runts,0giants,0throttles
0inputerrors,0CRC,0frame,0overrun,0ignored,0abort
0inputpacketswithdribbleconditiondetected
0packetsoutput,0bytes,0underruns
0outputerrors,0collisions,1interfaceresets
0babbles,0latecollision,0deferred
0lostcarrier,0nocarrier
0outputbufferfailures,0outputbuffersswappedout
R1#
2)验证串行接口
R1#shints0/0/0
Serial0/0/0isup,lineprotocolisdown(disabled)
MTU1500bytes,BW1544Kbit,DLY20000usec,
Lastinputnever,outputnever,outputhangnever
weightedfair
Outputqueue:
0/1000/64/0(size/maxtotal/threshold/drops)
Conversations0/0/256(active/maxactive/maxtotal)
ReservedConversations0/0(allocated/maxallocated)
AvailableBandwidth1158kilobits/sec
0carriertransitions
DCD=upDSR=upDTR=upRTS=upCTS=up
3)查看路由器接口的第3层配置
R1#shipints0/0/0
Addressdeterminedbysetupcommand
MTUis1500
Helperaddressisnotset
Directedbroadcastforwardingisdisabled
Outgoingaccesslistisnotset
Inboundaccesslistisnotset
ProxyARPisenabled
Securitylevelisdefault
Splithorizonisenabled
ICMPredirectsarealwayssent
ICMPunreachablesarealwayssent
ICMPmaskrepliesareneversent
IPfastswitchingisdisabled
IPfastswitchingonthesameinterfaceisdisabled
IPFlowswitchingisdisabled
IPFastswitchingturbovector
IPmulticastfastswitchingisdisabled
IPmulticastdistributedfastswitchingisdisabled
RouterDiscoveryisdisabled
IPoutputpacketaccountingisdisabled
IPaccessviolationaccountingisdisabled
TCP/IPheadercompressionisdisabled
RTP/IPheadercompressionisdisabled
Probeproxynamerepliesaredisabled
Policyroutingisdisabled
Networkaddresstranslationisdisabled
WCCPRedirectoutboundisdisabled
WCCPRedirectexcludeisdisabled
BGPPolicyMappingisdisabled
4)查看路由器接口的第3层配置摘要
R1#shipintbrief
InterfaceIP-AddressOK?
MethodStatusProtocol
FastEthernet0/0192.168.1.254YESmanualupup
FastEthernet0/0.10unassignedYESunsetupup
FastEthernet0/1unassignedYESunsetadministrativelydowndown
Serial0/0/0172.16.1.1YESmanualupdown
Serial0/0/1unassignedYESunsetadministrativelydowndown
Vlan1unassignedYESunsetadministrativelydowndown
5)查看接口各层协议的情况
R1#shprotocols
Globalvalues:
InternetProtocolroutingisenabled
FastEthernet0/0isup,lineprotocolisup
FastEthernet0/0.10isup,lineprotocolisup
FastEthernet0/1isadministrativelydown,lineprotocolisdown
Serial0/0/0isup,lineprotocolisdown
Serial0/0/1isadministrativelydown,lineprotocolisdown
Vlan1isadministrativelydown,lineprotocolisdown
6)查看接口控制器的信息
R1#shcontrollers?
EthernetIEEE802.3
FastEthernetFastEthernetIEEE802.3
GigabitEthernetGigabitEthernetIEEE802.3z
SerialSerial
R1#shcontrollerss0/0/0
InterfaceSerial0/0/0
HardwareisPowerQUICCMPC860
DCEV.35,clockrate128000
此命令可以验证串行接口是DCE端,还是DTE端。
R2#shcont
R2#shcontrollerss0/0/0
DTEV.35TXandRXclocksdetected