ccna实验手册工大瑞普2.使用cdp和telnet管理网络

1、基本实验拓扑:首先在 R1 是检查到 R2 R3 的链路是否连通R1#Type escsequence to abort.Sending 5, 100-byte ICMP Echos to , timeout is 2 seconds:!Suc/5 个!表明网络是通的s rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 msR1#Type escsequence to abort.Sending 5, 100-byte ICMP Echos to , timeout

2、 is 2 seconds:!/5 个!表明网络是通的Sucs rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms R1#1.学习 CDP (CISCO 发现协议)(CISCO协议)R1#show cdp ?/查看 CDP 命令的参数entryerface neighbors traffic|Information for specific neighbor entryCDPerfaus and configurationCDP neighbor entries CDP sisticsOutput modifiersR1#s

3、how cdp neighbors/查看 CDP 的邻居Capability Codes: R - Router, T - Trans Bridge, B - Source Route BridgeS - Switch, H - Host, I - IGMP, r - RepeaterDevice IDLocalrfceHoldtmeCapabilityPlatformPort IDswR2 R3Eth 0Ser 0Ser 1150133140S IR RWS-C2950-2Fas 0/2325002500Ser 0Ser 0R1#show cdperface/在路由器上查看运行 CDP 的接

4、口Ethernet0 is up, line protocol is up/E0 口运行 CDPEncapsulation ARPASendinP packets every 60 secondsHoldtime is 180 seconds Serial0 is up, line protocol is upEncapsulation HDLC/S0 口运行 CDPSendinP packets every 60 secondsHoldtime is 180 seconds Serial1 is up, line protocol is upEncapsulation HDLC/S1 口运行

5、 CDPSendinP packets every 60 secondsHoldtime is 180 secondsR1#show cdp traffic/查看 CDP 的packets CDP counters :Total packets output: 222, Input: 223Hdr syntax: 0, Chksum error: 0, Encaps failed: 0No memory: 0, Invalid packet: 0, Fragmented: 0CDP verCDP veradvertisements output: 0, Input: 0advertisemen

6、ts output: 222, Input: 223R1#show cdp entry */查看 CDP 邻居的所有详细内容Device ID: sw Entry address(es): IP address: 25Platform: cisco WS-C2950-24,Capabilities: Switch IGMPerface: Ethernet0,Port ID (outgoing port): FastEthernet0/23Holdtime : 178 secVer :Cisco ernetwork Operating System SoftwareIOS

7、 (tm) C2950 Software (C2950-I6Q4L2-M), Ver(fc1)Copyright (c) 1986-2004 by cisco Systems, Inc. Compiled Sun 07-Nov-04 23:14 by antonino 12.1(22)EA2, RELEASE SOFTWAREadvertisement ver: 2o:OUI=0 x00000C,ProtocolID=0 x0112;payloadlen=27,Protocolvalue=00000000FF010221FF00000000000000131A9A2B80FF00VTP Man

8、agement Native VLAN: 1Duplex: half: wisdomDevice ID: R2 Entry address(es): IP address: Platform: cisco 2500,Capabilities: Router erface: Serial0,Port ID (outgoing port): Serial0Holdtime : 160 secVer :Cisco ernetwork Operating System SoftwareIOS (tm) 2500 Software (C2500-JS56I-L), VerTAC Supp

9、ort: ht/tac Copyright (c) 1986-2002 by cisco Systems, Inc. 12.1(5)T12,RELEASE SOFTWARE (fc1)Compiled 04-Feb-02 11:25 by ccaiadvertisement ver: 2Device ID: R3 Entry address(es): IP address: Platform: cisco 2500,Capabilities: Routererface: Serial1,Port ID (outgoing port): Serial0Holdtime : 167

10、 secVer :Cisco ernetwork Operating System SoftwareIOS (tm) 2500 Software (C2500-JK8OS-L), VerCopyright (c) 1986-2002 by cisco Systems, Inc. Compiled Sun 03-Feb-02 22:01 by srani 12.2(1d), RELEASE SOFTWARE (fc1)advertisement ver2R1#R1#config tEnter configurationds, one per line.End with CNTL/Z.R1(con

11、fig)#no cdp run/在路由器上关闭 CDP 协议R1(config)#endR1#show01:44:40: %SYS-5-CONFIG_I: Configured from consoy consoleR1#show cdperface% CDP is not enabled/关闭了 CDP 协议后用 show cdpR1#erface检查路由器已把 CDP 关闭2.利用NET 来管理网络实验目的:首先通 CONSOLE 口控制 R1,控制 R1 后通过理.NET 到 R2,R3,对 R2,R3 进行管在 R1 上实验:R1#net /从 R1NET 到 R2Tr

12、ying . OpenUser Acs VerificationPassword:R2按x 切换回 R1R1#net /从 R1Trying . OpenNET 到 R3User Acs VerificationPassword:R3按x切换回 R1R1#show ses Conn Host1 *2 s/在 R1 上查看打开了多少个Address NET 的会话Byte 00Idle Conn Name 0 0 R1#resume 2/重新连接到

13、R3Resuming connection 2 to . R3按xR1#R1#show ses Conn Host1 *2 切换回 R1Address Byte 60Idle Conn Name 10 0 R1#disconnect 1/从 R1 是主动断开到 R2 的连接(断开一个NET 的会话)Closing connection to confirm在 R2 上实验: R2#show users Line*0 con 02 vty 0/在 R2 上查看有谁登录到路由器UserHost(s) idleidleIdle00:00:00Location00:01:52 erfaceUserModeIdle Peer AddressR2#clear line 2 c