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2600 Router Not Booting

MarineBean
Level 1
Level 1

I have a Cisco 2600 series router (model 2621) which I recently took out to configure for use. After being on the shelf for a period of time, I'd decided that I wanted to reset the router back to factory defaults and start fresh. I performed the following steps:

I began by issuing the erase nvram command and then issuing the reload command. This did not solve the problem so I proceeded to break into ROM Monitor by issuing the break sequence via my console connection during boot.

At the rommon prompt, I issued the confreg command to the wrong register (I issued it to 0x2142 when it wasn't). Then, I issued the reset command but the router never rebooted.

Now in the console window, I just get a flashing cursor.

I'm guessing that when I issued the confreg command to the wrong register, the router is looking to an empty register and doesn't do anything because there is no instructions in that register for it to follow.

The question is: How do I correct this problem?

Thank you in advance.

1 Accepted Solution

Accepted Solutions

glen.grant
VIP Alumni
VIP Alumni

  If it is set to 0x2142 all that should do is bypass the startup config when loading . My guess is  you accidently set it to something else and the console speed is no longer 9600  if you see nothing or nothing is presented when hitting the enter key.  You with have to play with your emulator speed settings , star at 2400 then go  up , 4800, 9600, 14400, 16200  etcc all the ay up to 115K .  One of them should work.

View solution in original post

3 Replies 3

IAN WHITMORE
Level 4
Level 4

Are you saying that you can't even get into rommon anymore?

glen.grant
VIP Alumni
VIP Alumni

  If it is set to 0x2142 all that should do is bypass the startup config when loading . My guess is  you accidently set it to something else and the console speed is no longer 9600  if you see nothing or nothing is presented when hitting the enter key.  You with have to play with your emulator speed settings , star at 2400 then go  up , 4800, 9600, 14400, 16200  etcc all the ay up to 115K .  One of them should work.

Thank you for the response Glen.

That was the problem!

Appreciate the help.