CCNA part 12 troubleshoot

1. Password Recovery:-
• Configuration register: 16 bit software register
which controls the boot sequence, the console
speed ,IP broadcast, startup configuration settings,
etc
• Default setting on the configuration register is
NVRAM-0x2102

2. Procedure for Password
Recovery:-
• Password recovery can be done only through the
console port
• Power cycle the router and within the first 60
seconds of booting hit the break sequence (CTRL
+BREAK – for Windows 95 and 98)
• The router goes into Rommon mode which looks
like “ >” or “rommon >” depending on the series
of the router

3. Changing the configuration
register:-
• > o/r 0x2142
• i
OR
• rommon> confreg 0x2142
• rommon> reset
• The router now boots without the configuration in
NVRAM and the password can be changed