We are closing down a site and I removed our 2620 router. I now have to set it up a new site with a different telco. The telco will assist me in reconfiguring the router. I setup the router in our conference room and attached a modem and gave the number to the local tech to dial in an reconfigure. It didn't work so, I hooked up a laptop to see if I could figure out what is wrong. I think the console port is getting shutdown before I can log in. Any idea how I get in to restore the console port?
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*Feb 28 16:00:18 PST: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.0(5)T1, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 17-Aug-99 13:57 by cmong
*Feb 28 16:00:19 PST: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Feb 28 16:00:20 PST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
*Feb 28 16:00:25 PST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down
*Feb 28 16:00:35 PST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
What your seeing is your actual interfaces FastEthernet and Serial as down because they are not connected. The Serial0/0 is your Wan interface and not the console.
The console port is noted as "line con 0"
Are using the cisco roll-over cable and the correct 9-pin serial connector for your laptop serial/com port?
If you know what the ip address was at the site your closing down - connect the fastethernet0/0 to a hub and connect your laptop to the hub and configure an IP address on your laptop and telnet in. Just another option..
Your cable is good (or you would not see the %LINEPROTO-5-UPDOWN messages!!!
What's hapening is when your router boots is't loading a "startup-config" file and in there your have locked out console access to the device thru "aaa" or something....
Try this>
When your router is booting.. issue the CTRL - Break to get to Rommon 1>.
Then type
ROMMON 1> config-register 0x2142
ROMMON 2> reset
When the router reboots you will not load the startup-config file and therefore have no configurations blocking your AUX or Console ports. You should then be able to dial into or login thru those ports. Once you are done making your configuraitons you will have to do the following:
1. Save your configurations (Router# wr)
2. Re-set the config-register (Router(config) configuration-register 0x2102)
3. Then reboot the router.
Very long weekend. I keep thinking that my RCV pins were right but the XMT pins were inverted. I tried two different RJ-45 cables, two db-25 connectors attached to db-9 converters and finally, I made my own db-9.
Nothing worked, so I started trying every possible combination of BREAK. I tried CTRL-BREAK, CTRL-C and finally, I realized that I had to use a FUNCTION-BREAK command (my laptop has function keys for the exotic keys). The FUNCTION-BREAK got me back to the RMON and I've been in contact with the telco carrier and they've reconfigured the router.
Overall, I think I reduced the life of my on-off switch by 5 years.
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