hello friends in this video i'm going to
show you how to recover or reset
password on your cisco router i'm going
to use cisco
isr4331 router in this video steps are
same if you have any other cisco router
also so to change the password in cisco
router steps are like this
restart the router or power and power of
the router and interrupt the router
loading process by break command
in roman mode change the default
configuration register value to
0x2142 and then restart the router to
take the effects after router take the
restart copy the old configuration from
startup configuration to running
configuration because we don't want to
lose the old configuration of the router
and then change the enable secret or any
other password on the cisco router and
save the setting then the most important
step is we need to revert back the
configuration register value back to
default that is 0x2102
and then reload the router to take the
effects and that's it
so let's do it
so now here you can see i already login
in my cisco isr 4031 router via party
and when i use command enable it ask the
enable secret that we don't know
so i'm going to power off my router
after a couple of second i power on
again
as step one i restart the router
now i have to use the break command in
party to stop the router to get startup
configuration file from nvr
for that i right click on top of putty
go to special command and click on break
i repeat this action multiple time until
router not go to roman mode
and here you can see we successfully
interrupt the router loading process and
now here in roman mode we need to change
the configuration register value as we
know default value is 0x2102
and we need to change it with 0x2142
for that i use command config register
0x 2142 and enter so now to see the
effect we need to restart the router
with command reset and enter
and there we go
it's now going to restart the router and
i'm going to fast forward this video to
save your time
and here we go router is now restarted
just wait couple of more seconds until
everything will load properly
okay now router restarted
now i am going to type enable command
again and enter
this time we get in enable mode without
any password
but still we not finished yet
so first i need to copy the old
configuration back to running
configuration because i don't want to
lose the router old configuration
for that i use command copy
startup config
running config
and enter
and that's it we successfully copy the
old configuration in running
configuration and now we need to change
the enable secret or any other password
if you have on your router
for that i go to global config mode with
command t
and enter
to change enable secret i type enable
secret and here i have to set the new
password or new secret for my router i
type cisco 123 and enter
and exit from global config mode and now
i save this setting with command write
and enter
now in last the most important step is
revert back the configuration register
value back to default that is 0x2102
for that i go to globalconfig mode
config t
enter
and here i type command config register
0x2102
and enter
and exit from global config mode
and finally we have to save this setting
with command write and enter
and that's it
now to see the effect we have to restart
the router again
for that i type command reload
and enter
and now my router is going to restart
again
and now i'm going to fast forward this
video again to save your time
and here you can see router finish the
reboot process and when i type command
enable
enter it asks the enable secret and this
time i know the secret that we set
couple of minute before
now i type here cisco123 the new secret
what we set and enter
and that's it i can successfully log
into router with new secret
and to see the old configuration i type
command here show run
and here you can see the old
configuration still store in the router
so we successfully change the cisco
router secret without losing the old
configuration
thank you for watching my video and
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for watching