09-16-2003 10:05 PM - edited 03-10-2019 07:29 AM
Hi,
I just got problem on yesterday, when i try to set password on line con 0 and i set the password blank on line con 0. After that
i also give the command write mem.
Then i am unable to log on the Router 2600 series. The error message is return, which is the subject of this email. Kindly give
me the solution of this problem.
i am very grateful to you.
Thanks & Regards,
Khurram
09-17-2003 10:44 PM
If you've someohow set the password to be blank, and also saved the config, can you still get in via a telnet session? If you have any access into this router, do:
line con 0
no password
no login
and then you should be able to get back in via the console.
If you have no access, then you'll have to do password recovery on it using this:
09-18-2003 02:56 AM
Thanks for reply.
No, when i try to connect via telnet, it give the message "password required, but none set".
Should i connect router via console without the trunoff the router, because our network connectivity is 24 hours and their is no posibilty to shut down the router.
Or should i connect router via console in running condition(without powering off the router)?
Regards,
Khuuram
09-18-2003 04:50 PM
Plug a terminal into the console while the router is running, that's fine. If you can get in, then do the following:
line vty 0 4
password
This'll set the telnet password to whatever you enter in, this should enable you to telnet in now.
09-18-2003 08:57 PM
Hi,
I am searching on the net about this problem so i found this statement. Is the last sentence of this paragraph is true.
All default passwords on a Cisco router are blank. It is not possible to telnet to a router without the "line vty" password established you will get
a "Password required, but none set" notice. Additionally enable mode cannot be reached over telnet if the "enable password" has not been configured again you will get a "% No password set" prompt. "At the console these limitations do not exist so blank passwords will allow access".
Waiting for your reply.
Regards,
Khurram
09-20-2003 08:54 AM
Hi,
Thanks for your help and support.
I had resolve that problem yesterday by connecting the router via console port and update the new password in the router. Now i am able to establish the telnet session.
Thanks again for your support.
Best Regards,
Khurram
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