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Quản trị mạng CiscoPassword Recovery.doc
Password Recovery-Flip router switch off, then turn back onwhen back on, press ctrl Break within 60secsCommand o/r 0x2142Press ENTERCommand I, ENTERRouter will reboot, will not find files, type no to setup mode question, ENTERType ENABLE, enter privileged, will enter w/out passwordAt prompt, type COPY START RUN-Config T-Enable secret *******-Line con 0-Login-Password *******-ExitGlobal config mode,-config-register 0x2102-Show version-Copy Run StartSTEPS- Within 60 secs of re-booting the router <ctrl break>- Set up a register entry to ignor NVRAM, <o/r 0x2142- Restart the router, <I>- Bypass the configuration utility, <n> or <ctrl c>- Enter privileged mode, <enable>- Copy NVRAM to RAM, <copy start run>- Enter global config mode <config t>- Change password, <enable secret ****>- Change console password <line con 0>, <login>, <password ****>- Return to global config mode, <exit> or <Ctrl z>- Reset register entry, <config-register 0x2102>- Verify changes <show ver>- Copy Ram to NVRAM <copy run start> . Password Recovery- Flip router switch off, then turn back onwhen back on, press ctrl Break