10-13-2014 05:20 PM - edited 03-03-2019 07:37 AM
Hi, i'm building my CCNA Voice lab, but my cisco 2801
problem is cookie corrupt.
i need password for rebuild try at this website https://secure.corradoroberto.it/cisco/Online_password_calculator_for_Cisco_rommon_command_priv.py
but dont work.
the password dont macth
rommon 30 > priv
Password:
rommon 31 > priv
Password:
rommon 32 >
Cookie is:
cookie:
04 ff 09 86 ff ff ff ff ff ff ff ff ff ff ff ff
4f 43 31 32 30 31 30 38 51 5a 40 04 1c 41 07 00
82 49 1f fe 07 42 43 30 c0 46 03 20 00 5b 8b 05
88 00 00 00 00 02 04 c6 8a 49 50 4d 37 56 30 30
43 52 41 03 00 81 00 00 00 00 04 00 cb 89 43 49
53 43 4f 32 38 30 31 89 56 30 34 20 d9 02 c1 40
09 86 c2 8b 46 48 4b 31 32 30 32 46 33 4a 48 ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Thanks!!!
Solved! Go to Solution.
10-13-2014 06:11 PM
Does it boot to ROMMON and won't let you boot the IOS?
10-13-2014 06:11 PM
Does it boot to ROMMON and won't let you boot the IOS?
10-13-2014 06:47 PM
Hi, router lost mac address in eeprom.
start ios but crash when ethernet ports start
i need write a new mac address in eeprom;
but need password to enter priv command at rommon
10-13-2014 08:14 PM
01-04-2015 10:59 AM
Hi Daniel, I too am having this problem with a 2801.
I have the same first line and cannot seem to calculate the correct password despite many tries, same on my other working 2801 with a valid cookie.
04 ff 09 86 ff ff ff ff ff ff ff ff ff ff ff ff
I was wondering if you remembered the password you used?
Many Thanks,
Lewis
01-05-2015 02:26 AM
Hi Lewis, i used this to help me and i calculate the password
http://www.chainringcircus.org/hacking-rommon/
In my case is this
rommon 1 > cookie
cookie:
01 01 00 12 01 fd 68 60 43 20 01 ff 03 6d 00 20
00 00 00 00 00 00 00 00 46 4f 43 08 38 32 43 52
57 03 01 00 00 00 00 00 00 ff ff ff 50 06 49 1e
4a 05 ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
01 01 +
00 12 +
01 fd +
68 60 +
43 20 = AE90
And worked i can use the router and now is working fine.
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