路由器密码恢复：

      1.先关闭电源，重新启动路由器，注意终端上显示 press CTRL+B to enter extended boot menu 的时候，我们迅速按下ctrl+B，这样将进入扩展启动选项

      2.进入路由器视图：

    低端H3C设备：

    ***********************************************
    *                                             *
    *     Quidway Series Router Bootrom, V5.1     *
    *                                             *
    ***********************************************
    Quidway R1600 Hardware Version 1.0
    Copyright（C） 1999-2002 by HUAWEI TECHNOLOGIES CO., LTD.
    Compiled at 11:30, Wed 13-Jun-2001.
    Testing DRAM…################
    16384K bytes DRAM OK .
    2560K bytes flash memory.
    Press Ctrl-B to enter Boot Menu .
    Please input Bootrom password:
    Boot Menu:
    1:  Download application program
    2:  Download Bootrom program
    3:  Modify Bootrom password
    4:  Exit the menu
    5:  Reboot
    Enter your choice（1-5）：
    此时，按下ctrl+p
    ############################
    Boot Menu:
    1:  Download application program
    2:  Download Bootrom program
    3:  Modify Bootrom password
    4:  Exit the menu
    5:  Reboot
    Enter your choice（1-5）： 5

    重启完成后即可直接进入系统视图

    中端H3C设备：

    ********************************************
    *                                                   *
    *  Quidway Series Routers Boot ROM, V4.69   *
    *                                                   *
    ********************************************
    Copyright（C） 2002-2005 by HUAWEI TECH CO., LTD.
    Compiled at 11:14:01 , Dec  2 2002.
    Now testing memory…OK!
    64M    bytes  SDRAM
    8192k  bytes  flash memory
    Press Ctrl-B to enter Boot Menu
    Please input Bootrom password:
    Boot Menu:
    1:  Download application program with XMODEM
    2:  Download application program with TFTP
    3:  Clear application password
    4:  Clear configuration
    5:  Exit and reboot
    Enter your choice（1-5）： 3
    Erase application program password.Press  key when ready.
    Erasing…
    Boot Menu:
    1:  Download application program with XMODEM
    2:  Download application program with TFTP
    3:  Clear application password
    4:  Clear configuration
    5:  Exit and reboot
    Enter your choice（1-5）： 5

    重启完成后，即可直接进入系统视图[Router]，此时再更或新增改类型为admin的exec密码，保存即可

H3C-路由器密码恢复