From: Joe Soricelli (jsoricelli@xxxxxxxx)
Date: Sun Nov 07 1999 - 20:18:39 GMT-3
Folks,
Don't forget that the newer routers like 1700, 2600, 3600, etc. can have
console speeds up to 115K. Bit 5 in the config register is thrown into the
mix to get the higher speeds. It is a zero to get 1200, 2400, 4800, and
9600. When it is a one, you get the higher speeds. I don't remember the
details at the moment.
However, if you get one of these newer boxes, remember that you can run the
confreg program in rommon mode. It will ask you all of the questions
concerning the config register including "Do you want to change the console
speed from 9600 default?" (Or something to that effect.) If you say Yes, it
will ask you what speed you want and will list off all of the choices.
Also, if you have some 12.0 code, any changes to the speed from the 9600
default will place a config command under line con 0 stating the current
speed, like speed 115000. To change the speed, go to line con 0 and change
it there. Doing a conf-reg 0x2102 command in global config will NOT change
the console speed, only under line con 0.
-joe
------------------------------------------------------------------
Joseph M. Soricelli, CCIE #4803, CCNP, CCSI #20666
EMAIL: jsoricelli@ccci.com
Chesapeake Network Solutions Phone: (703) 207-0757
8110 Gatehouse Road, Suite 101E Fax: (703) 207-0441
Falls Church, VA 22042 E-Fax: (703) 783-0360
FYI - About Chesapeake: We are a Cisco professional services partner
as well as a Certified Training Partner. We provide network consulting
services including Network Assessments, Network Design and Implementation
Services, Network Management, Network Security, and Knowledge Transfer.
As a training partner, we offer most of the Cisco training courses as well
as
training for Fore, NetScout, and CheckPoint-1 Firewalls. We now have 23
CCIEs on our staff of instructor/consultants.
-------------------------------------------------------------------
-----Original Message-----
From: Brian Van Benschoten <vader@inxpress.net>
To: Scott Morris <SMorris@tele-tech.com>; ccielab@groupstudy.com
<ccielab@groupstudy.com>
Date: Sunday, November 07, 1999 3:50 PM
Subject: Re: Recover from console port speed change
>Thats what I was looking for. Thanks for the tip !!
>----- Original Message -----
>From: Scott Morris <SMorris@tele-tech.com>
>To: 'Brian Van Benschoten' <vader@inxpress.net>; <ccielab@groupstudy.com>
>Sent: Sunday, November 07, 1999 2:14 PM
>Subject: RE: Recover from console port speed change
>
>
>> It's part of the config-register set... Out of the 16 bits that
represent
>> the config-register (like 0x2142), bits 11 and 12 represent the console
>> speed.
>>
>> There are four possible settings on 25xx and 4xxx routers. They are
1200,
>> 2400, 4800 and 9600.
>>
>> Bits 11/12 Speed
>>
>> 0 0 9600
>> 0 1 4800
>> 1 0 1200
>> 1 1 2400
>>
>> This means that the overall register can be a pain in the ass to decode
>> since those bits fall in two separate digits.
>>
>> Assuming that you want config-register to be 0x2142 for normal operation.
>>
>> If it's 0x2142 you're at 9600.
>> 0x2942 is 4800
>> 0x3142 is 1200
>> 0x3942 is 2400
>>
>> Enjoy! But remember you will have figured out what speed it's at already
>> (unless you telnet in), but 0x2142 will get you back where you want to
>> be....
>>
>> Scott
>>
>> -----Original Message-----
>> From: Brian Van Benschoten [mailto:vader@inxpress.net]
>> Sent: Sunday, November 07, 1999 2:41 PM
>> To: ccielab@groupstudy.com
>> Subject: Re: Recover from console port speed change
>>
>>
>> I see you point. There is only like 4 speeds it can be. However , if
>they
>> change the speed you need to be able to change it back.
>>
>> I know I saw a list somewhere that explained what each of the bits did.
I
>> just cant remember where I saw it.
>> ----- Original Message -----
>> From: Scott Morris <SMorris@tele-tech.com>
>> To: 'Brian Van Benschoten' <vader@inxpress.net>; <ccielab@groupstudy.com>
>> Sent: Sunday, November 07, 1999 12:53 PM
>> Subject: RE: Recover from console port speed change
>>
>>
>> > Ok. Apparantly you're at that "stressing out" point... Simple.
>> Remember,
>> > simple. Do not overthink things....
>> >
>> > There aren't that many possible settings for console port speeds
>anyway...
>> > Change your terminal program until you find the one that works. ;)
>> >
>> > Remember, just because you're going to be a CCIE does not mean that
>> > everything in life is difficult or complex. Always remember the simple
>> > solutions.
>> >
>> > Enjoy, and good luck!!!
>> >
>> > Scott Morris, MCSE, CNE (3.x), CCDP, CCIE #4713, Security
>> > Specialization(CCIE)
>> > smorris@tele-tech.com
>> >
>> >
>> > -----Original Message-----
>> > From: Brian Van Benschoten [mailto:vader@inxpress.net]
>> > Sent: Sunday, November 07, 1999 1:06 PM
>> > To: ccielab@groupstudy.com
>> > Subject: Recover from console port speed change
>> >
>> >
>> > Anyone know how to recover from a changed console port speed?
>> >
>> > Its one of the config registers, I can't seem to find a complete
listing
>> of
>> > config-registers on CCO. I can find the bits needed to recover
>passwords
>> > and boot ROM. Just not the console speed.
>> >
>> > Thanks.
>> >
>> > 3 days.....
>> >
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