实验一路由器交换机密码恢复.doc

实验一：路由器交换机密码恢复（1） ? (2009-11-18 13:49:03) 实验环境：用Packet Tracer 5.0模拟软件模拟路由器CISCO 26201、CISCO 2600系列路由器密码恢复： Router Routerenable Router#show version?---------------------------查看寄存值号 Cisco Internetwork Operating System Software IOS (tm) C2600 Software (C2600-I-M), Version 12.2(28), RELEASE SOFTWARE (fc5) Technical Support: /techsupport Copyright (c) 1986-2005 by cisco Systems, Inc. Compiled Wed 27-Apr-04 19:01 by miwang Image text-base: 0x8000808C, data-base: 0x80A1FECC ? ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1) Copyright (c) 2000 by cisco Systems, Inc. ROM: C2600 Software (C2600-I-M), Version 12.2(28), RELEASE SOFTWARE (fc5) ? System returned to ROM by reload System image file is flash:c2600-i-mz.122-28.bin ? cisco 2620 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memory . Processor board ID JAD05190MTZ (4292891495) M860 processor: part number 0, mask 49 Bridging software. X.25 software, Version 3.0.0. 1 FastEthernet/IEEE 802.3 interface(s) 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Read/Write) ? Configuration register is 0x2102-------标准默认值 Router#config t Enter configuration commands, one per line.??End with CNTL/Z. Router(config)#hostname r2620 r2620(config)#enable secret lzl r2620(config)#exit r2620#copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] r2620#exit r2620 con0 is now available ? Press RETURN to get started. ? r2620 r2620 r2620enable Password: Password: Password: % Bad secrets ------------------------忘记密码不能进入特权模型，怎办呢！重启路由器加电启动60秒钟内按ctrl+Break结合键进入监视器模式 rommon 1 ? boot????????????????boot up an external process confreg?????????????configuration register utility dir?????????????????list files in file system help????????????????monitor builtin command help reset???????????????system reset set?????????????????display the monitor variables tftpdnld????????????tftp image download unset???????????????unset a mon