Cisco Router connection to Modem

Posted on 2011-10-07
Medium Priority
Last Modified: 2012-05-12
I have a Cisco 1841 that I configured the aux port to except connections via a USR modem for emergency access. When I set this up and tested it last year it worked fine but now one year later I really need it to work and it is not. I can use my laptop Windows 7 with HyperTerminal and dialup the modem and I can connect but the CLI is coming back jibberish. so first thought is speed mis match or to fast which when tested last year and worked was set at 115200, so i have changed the aux line 0 to different speeds and matched the speed on my Hyperterminal. I have tried 1200, 9600, 38400, 115200 all with 8-N-1, I have tried with compression and without.
here is my Line aux 0 config...
line aux 0
 modem InOut
 modem autoconfigure discovery
 transport input all
 stopbits 1
 speed 9600
 flowcontrol hardware

Thank you inadvance!
Question by:toddbaileyusa
  • 2
LVL 35

Expert Comment

by:Ernie Beek
ID: 37040371
First advice: Burn hyperterminal!!
Second advice: Use putty instead (http://www.putty.org/)

That might already solve it. By the looks of it your config seems ok (I checked at: http://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a0080094bbc.shtml)

Author Comment

ID: 37044476
erniebeek, I normally don't use hyperterm putty is what i like to use... Go Putty:) however putty responded the same way. i also tried a different laptop just in case mine was having issues but that did nothing for me. because of time running out i paid a IT consultant that was in Phoenix to go out and make the changes for me, (I am in Dallas)... and now i am past the rush. however i would like to fix the issue, but just don't have time. if i were a Real Cisco Guru i would config an image and change the reg and reload the router from TFTP and changes would be made. but with my lack of knowlage and expereance i could not afford for it not to work.

I may be thinking of changing to Juniper, seeing how it will let you make all your config changes without loosing my connection because with JUNOS the changes do not kick-in until you type commit, and WOW its all done.
LVL 35

Accepted Solution

Ernie Beek earned 2000 total points
ID: 37113911
Well, one thing to know with cisco is the reload in xx command. This will cause the device to reboot in xx minutes. So if you issue that before reconfiguring and you get kicked out, just wait xx minutes, the device reloads, it loads it's previous config and you are able to connect again :)

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