Probleme avec routeur cisco 2801

Bonjour, voici le probleme
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Cisco Configuration Professional (Cisco CP) is installed on this device.
This feature requires the one-time use of the username "cisco" with the
password "cisco". These default credentials have a privilege level of 15.

YOU MUST USE CISCO CP or the CISCO IOS CLI TO CHANGE THESE PUBLICLY-KNOWN
CREDENTIALS

Here are the Cisco IOS commands.

username <myuser> privilege 15 secret 0 <mypassword>
no username cisco

Replace <myuser> and <mypassword> with the username and password you want
to use.

IF YOU DO NOT CHANGE THE PUBLICLY-KNOWN CREDENTIALS, YOU WILL NOT BE ABLE
TO LOG INTO THE DEVICE AGAIN AFTER YOU HAVE LOGGED OFF.

For more information about Cisco CP please follow the instructions in the
QUICK START GUIDE for your router or go to https://www.cisco.com/c/en/us/products/cloud-systems-management/configuration-professional-catalyst/index.html
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User Access Verification

Username: cisco
Password:
% Login invalid

Username: cisco
Password:
% Login invalid

Username:
en tapant plusieur fois les username
et les password comme cisco class .....ect
et toujour meme chose je n'arrive pas a acceder a l'invite de routeur et a l'affichage classique du routeur c'est dire
la ligne de commande avec l'invite router>
de meme je n'arrive pas acceder au mode rommone