1.?路由器密碼的恢復(fù).

?

2600、3600等新系列路由器步驟：

1、啟動(dòng)路由器，60秒內(nèi)按下ctrl+break鍵2、rommon>confreg 0x21423、rommon>reset4、router#copy startup-config running-config5、router(config)#no enable secrect  //可以刪除密碼也可以更改,這里為刪除6、router(config)#no enable password7、router(config)#config-register 0x21028、router#copy  running-config  startup9、router#reload

2500系列路由器步驟：

1、啟動(dòng)路由器，60秒內(nèi)按下ctrl+break鍵2、>o/r 0x21423、>i其余步驟跟2600、3600一樣

2．交換機(jī)密碼恢復(fù)

以2950為例

重啟交換機(jī)：按MODE鍵進(jìn)入到switch:模式?如下

C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)Compiled Mon 22-Jul-02 17:18 by antoninoWS-C2950-24 starting...Base ethernet MAC Address: 00:13:1a:9a:2b:80Xmodem file system is available.

The system has been interrupted prior to initializing theflash filesystem.  The following commands will initializethe flash filesystem, and finish loading the operatingsystem software:

    flash_init    load_helper    boot

switch: flash_initInitializing Flash...flashfs[0]: 4 files, 1 directoriesflashfs[0]: 0 orphaned files, 0 orphaned directoriesflashfs[0]: Total bytes: 7741440flashfs[0]: Bytes used: 3090944flashfs[0]: Bytes available: 4650496flashfs[0]: flashfs fsck took 6 seconds....done initializing flash.Boot Sector Filesystem (bs:) installed, fsid: 3Parameter Block Filesystem (pb:) installed, fsid: 4switch: load_helperswitch: dir

List of filesystems currently registered:

               flash[0]: (read-write)              xmodem[1]: (read-only)                null[2]: (read-write)                  bs[3]: (read-only)

switch: dir flash:Directory of flash:/

2    -rwx  736       <date>               vlan.dat3    -rwx  3086336   <date>               c2950-i6q4l2-mz.121-22.EA2.bin5    -rwx  1558      <date>               config.text／／交換機(jī)啟動(dòng)時(shí)應(yīng)用的配置6    -rwx  5         <date>               private-config.text

4650496 bytes available (3090944 bytes used)switch: rename flash:config.text flash:config-old.txt //重命名config.text switch: reset   //重起交換機(jī)Are you sure you want to reset the system (y/n)?ySystem resetting...

重起交換機(jī)后由于交換機(jī)不會(huì)再應(yīng)用配置文件，因?yàn)閯偛乓寻雅渲梦募拿指?。交換機(jī)會(huì)進(jìn)入到配置的對(duì)話模式。如查

?---?System?Configuration?Dialog?---
Would you like to enter the initial configuration dialog? [yes/no]: nSwitch#dirDirectory of flash:/
    2  -rwx         736  Mar 01 1993 00:19:14 +00:00  vlan.dat    3  -rwx     3086336  Jan 01 1970 01:12:26 +00:00  c2950-i6q4l2-mz.121-22.EA2.bin    5  -rwx        1558  Mar 01 1993 02:36:44 +00:00  config-old.txt    6  -rwx           5  Mar 01 1993 02:36:44 +00:00  private-config.text
7741440 bytes total (4650496 bytes free)
Switch#copy config-old.txt running-configDestination filename [running-config]?1558 bytes copied in 1.152 secs (1352 bytes/sec)sw#config tEnter configuration commands, one per line.  End with CNTL/Z.sw(config)#line console 0sw(config-line)#no pass cisco ／／清除console口密碼sw(config)#no enable secret  ／／清除enable密碼sw(config)#no enable password ／／清除enable密碼sw#write  //重新保存

以上密碼刪除成功，很多情況下你可以不刪除，就直接更改就OK了。文章來源地址http://www.zghlxwxcb.cn/news/detail-603413.html

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