wolf-實(shí)驗(yàn)手冊(cè)-6.學(xué)會(huì)使用telnet

實(shí)驗(yàn)?zāi)康?通過控制R1后,NET到R2(12.1.1.2),R3(13.1.1.3)對(duì)R2,R3進(jìn)管理在R1上配置R1#net12.1.1.2//從R1NET到Trying12.1.1.2...Open按<Ctrl-Shift-6>x把界面切換回R1#net13.1.1.3//從R1NET到Trying13.1.1.3...Open按<Ctrl-Shift-6>x把界面切換回R1#showsessions//在R1上查看打開了多少個(gè)NET會(huì)ConnHostAddressByteIdleConnName112.1.1.212.1.1.20012.1.1.2*213.1.1.313.1.1.300R1#resume2//重新連接到R3[Resumingconnection2to13.1.1.3按<Ctrl-Shift-6>x切換回R1#showConnHostAddressByteIdleConnName112.1.1.212.1.1.261012.1.1.2*213.1.1.313.1.1.300R1#disconnect1//從R1是主動(dòng)斷開到R2的連接(斷開一個(gè) NET的會(huì)話)Closingconnectionto12.1.1.2[confirm]R2上實(shí)驗(yàn)R2#showusers在R2上查看有誰登錄到R2LineUserHost(s)Idle*0con0idle2vty0idle00:01:52InterfaceUserModeIdlePeerR2#clearline2//發(fā)現(xiàn)有 NET過來,把連接清R2#showLineUserHost(s)Idle*0con0idleInterfaceUserModeIdlePeer提示:利 NET來管理的幾條命令的區(qū)別showsession//查看本路由器或是交換機(jī)主動(dòng)打開了多少個(gè)net的會(huì)話showuser//查看本路由器或是交換機(jī)有誰net進(jìn)來，可以顯示他的IP地址Disconnect//在本路由器上主動(dòng)斷開本路由器所打開的net會(huì)話Clearline//清除遠(yuǎn)端連接，發(fā)現(xiàn)有NET的會(huì)話,把他清Ctrl+shift+6x//net會(huì)話的切ResumeID重新再次連接，先showsession查看會(huì)話使用SSH控制遠(yuǎn)端設(shè)備（包括路由器或是交換機(jī)或是等網(wǎng)絡(luò)設(shè)備。注：SSH是基于TCP協(xié)議上的,端為22配置步驟(SSHConfiguretheIPGeneratetheRSAConfiguretheSSHtimeoutinterval可選ConfiguretheSSHretries可選Disablevty netEnablevtyinboundSSH例子R1#configureterminalR1(config)#ip-nameR1(config)#cryptokeygeneratersageneral-keysmodulus512R1(config)#ipsshtimeout120R1(config)#ipsshauthentication-retries4R(config)#usernameciscopasswordciscoR1(config)#linevty04R1(config-line)#transportinputnoneR1(config-line)#transportinputsshR1(config-line)#loginlocal配置步驟(SSHsecureCRT為例在提示中輸入用戶名cisco