Cisco 1841 Questions 4

[ccnabegginer]

Hello
I picked up a used cisco 1841 on ebay seller stated it works great etc. and it does but when I opened it up to clean it out I noticed that it was missing a small battery such as a wrist watch battery, also the slot for the memory did not have any memory in there. The router works but I noticed that it has a small delay. Once I type out a command and press enter it takes about 1-2 seconds until I get a response from the router. Is that normal with these routers?

This is probably what the battery looks like that it's missing

http://www.lawyersandsettlements.com/blog/wp-content/uploads/2009/12/buttonbattery.jpg

Thanks

 

[burtsbees]

You need more DRAM it sounds like. That battery is likely a standard CMOS battery, responsible for storing info (NVRAM(?), time, etc.),

Try and configure a small config, like maybe a hostname, verify the config register is at 2102 (sh ver) and set the time and then power off, unplug, wait 20 seconds for all caps to discharge, plug back in, and power on---see if it saves the config. If not, then the battery is responsible for NVRAM having power to store the config. You'll need to replace it.

Post a sh ver to verify flash size and DRAM...if it's too low, I'd give the Ebay dude a poor rating---I always ask for a sh tech, or the very least a sh ver and a sh run.

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[ccnabegginer]

Hello

I put some basic configuration on the router and it seems like that it has saved it to the memory. So if I wanted still to get an battery where would I get one from? Wallgreens or Wall mart?

I'll get some DRAM memory to add to it as well (but not from wall mart or wallgreens lol)

I also noticed that tyhe 1841 had a USB slot. What ios that used for?

I do have another small question

I also got a 2621XM router with 2 WIC 1DSU T1 cards allready build into it but when I do show ip interface brief I serial interfaces there as well

Router#show ip interface brief
Interface IP-Address OK? Method Status Prot
ocol
FastEthernet0/0 unassigned YES NVRAM administratively down down

Serial0/0 unassigned YES NVRAM administratively down down

FastEthernet0/1 unassigned YES NVRAM administratively down down

Serial0/1 unassigned YES NVRAM administratively down down

Router#


Thanks

 

[burtsbees]

1.Get the battery from Walgreens or Wal-Mart, but you must ensure you get the proper voltage for the battery---it could damage the router. I would actually not replace it if it works fine---does it keep time as well?

2.The USB slot is for booting a secondary IOS.

3.You see the serial interfaces...what's the question? The WIC-2dsu-T1 WIC has two serial interfaces. They are obviously in the built-in NM (module 0, slots 0 and 1, thus s0/0 and s0/1). The WICs themselves are not built in---they are removable WIC cards, thus giving the description of the 2621 (1700, 1800, 2600, 2800, 3600, 3800 series as well), as a modular router.

HTH

Please star me if I helped? I could use all I can get!lol

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[burtsbees]

Please post sh ver as well, por favor.

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[ccnabegginer]

Hello

Thanks for the info You got stars from me

The 1841 does keep the configuration but the date is set to january 2005.

I do have a question again

The WIC 1DSU T1 interfaces seem to accept an ethernet cat5e cable that is what confuses me. It does not look like a serial interface it looks like an Ethernet interface im now even more confused than I was a earlier

SH Ver



Router>en
Password:
Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.3(22), RELEASE SOFTWARE (fc2)
Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 24-Jan-07 16:48 by ccai
Image text-base: 0x80008098, data-base: 0x81AB3AD4

ROM: System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
ROM: C2600 Software (C2600-IS-M), Version 12.3(22), RELEASE SOFTWARE (fc2)

Router uptime is 2 hours, 28 minutes
System returned to ROM by reload
System image file is "flash:c2600-is-mz.123-22.bin"

cisco 2621XM (MPC860P) processor (revision 0x401) with 126976K/4096K bytes of me
mory.
Processor board ID FTX0951A1Q6 (2735480200)
M860 processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
49152K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Router#

 

[ccnabegginer]

Also if this is a serial interface can I connect routers together with this interface just like I would with a serial cable?

 

[krock22]

does that battery explain why my time at work is wrong as well?

 

[ISPKing]

The battery is only responsible for time and few other minor things, nvram is similar to eprom thus not requiring any external power to retain data, changing the baud rate to a higher setting will also make it seem like the router is faster as it transmit data faster through the console.

CCNP

 

[ccnabegginer]

I've looked at the manual but the manual does not specify what type of battery I need to get. Does anyone know what type I need to get?

 

[burtsbees]

Those serial interfaces are for T1 lines. You can connect them together by using a T1 crossover cable, with ethernet Cat5e, etc. and RJ-45 connectors. The pinouts are not like ethernet---they are like this (crossover)...

http://www.t-radtalk.com/howto/how_to_make_a_t1_cross_over.htm

There is no clockrate needed---the clocking is internal on the WICs.

Battery? I dunno...

But that sh ver is from a 2621XM. Try to and set the time in the 1841, and then unplug, etc. and turn it back on, see if it keeps the time or not.

You should not waste that 2621's power! You should acquire a better IOS by emailing me...

timandlizh at gmail dot com

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[Almin]

Hello

Can somebody tell me how much DRAM I got?

Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(4)T, REL
EASE SOFTWARE (fc1)
Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Sun 26-Oct-08 16:34 by ccai

ROM: System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)

1841 uptime is 56 minutes
System returned to ROM by power-on
System image file is "flash:c1841-advsecurityk9-mz.124-4.T.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco 1841 (revision 6.0) with 116736K/14336K bytes of memory.
Processor board ID FTX1013W0R3
2 FastEthernet interfaces
1 Serial(sync/async) interface
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

I belive for an upgrade I have to have more than 198MB DRAM and 64MB Flas

 

[burtsbees]

Cisco 1841 (revision 6.0) with 116736K/14336K bytes of memory

You add the two numbers there separated by the slash and round to the nearest multiple of 16.

116736+14336=131072. The nearest multiple of 16 from that is 128,000. You have 128MB DRAM and 64MB flash (commonly written as 128/64).

If the image is actually bigger than 62MB, however, it won't fit on the ATA flash card...

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[Almin]

OK so I have purchased more DRAM but the memory I recived i bigger physicly than the original one, now I'm not sure if I should put that in or not. Picture is bellow

Thanks

http://www.bosanci.net/RAM/RAM.jpg

 

[ISPKing]

^^go ahead, same pin type so no problem.

CCNP

 

[burtsbees]

The 256MB DRAM DIMM (bigger one) is a Cisco Genuine part.

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[Almin]

Ok now that I have that behind me I wanted to upgrade to a new IOS version, but every time I try I get this error Message from my TFTP Server. Screen shot bellow

http://www.bosanci.net/RAM/Error.JPG

I was able to upgrade 2 out of 3 routers using this TFTP Server

Has anyone any idea what could be wrong with the memory?

Thanks

 

[burtsbees]

That's a Windows memory error, not the router memory error. Use this tftp server---I love it---best one I have ever used, easiest one...

http://tftpd32.jounin.net/tftpd32_download.html

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[Almin]

ok now it tells me that I dont have enough space on the device

1841#show ver
Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(4)T, REL
EASE SOFTWARE (fc1)
Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2005 by Cisco Systems, Inc.


ROM: System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)

1841 uptime is 42 minutes
System returned to ROM by power-on
System image file is "flash:c1841-advsecurityk9-mz.124-4.T.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco 1841 (revision 6.0) with 234496K/27648K bytes of memory.
Processor board ID FTX1013W0R3
2 FastEthernet interfaces
1 Serial(sync/async) interface
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

1841#copy tftp: flash:
Address or name of remote host [192.168.1.1]?
Source filename [c1841-adventerprisek9-mz.124-25b.bin]?
Destination filename [c1841-adventerprisek9-mz.124-25b.bin]?
Accessing tftp://192.168.1.1/c1841-adventerprisek9-mz.124-25b.bin...
Loading c1841-adventerprisek9-mz.124-25b.bin from 192.168.1.1 (via FastEthernet0
/0): !
%Error copying tftp://192.168.1.1/c1841-adventerprisek9-mz.124-25b.bin (Not enou
gh space on device)
1841#

From my understanding I have 256MB of DRAM and 64MB of Flash how much more do I need to have?

 

[ISPKing]

do a sho flash, and see how much space your using. the current ios plus the one you are loading are most likely over 64mb combined, thus you need to delete the current first then load the new one.

CCNP