SOURCE: cisco router 1841 connected to serial interface
Hello,
Theres no need to setup for the nat but please check the wan interface and subnet mask ip it has to something else and not 255.255.255.252..Try 255.255.255.240 it must work...
SOURCE: Cisco 1841 router
You can ID the cards by seeing if the card has "V2" on the metal plate. I believe an 1800 chasis requires a V2 card.
SOURCE: Cisco 1841 Freezing at System Configuration Dialog
try power off the router.
turn it back on..check IOS version.
if it is old version..upgrade it then.
SOURCE: change IP address of Cisco 1841
once in enable mode, goto config mode. then select interface, i.e. f0/0 and then type in the following:
ip address x.x.x.x y.y.y.y where x is your IP address you wish to have and y is the subnet mask
example below:
router#config t
router(config)#int f0/0
router(config-if)ip address 10.0.0.1 255.255.255.0
hope this helps!
SOURCE: I have cisco 1841 router stuck at Rommon> only
what shows the following?
dir flash:
If IOS is ok the follow the below step
The router will guide you through changing the registry. You want to press y to chang the configuration. The only other change you need to make is the change to the console baud rate, set that to 7 (115200).
do you wish to change the configuration? y/n [n]: y
enable "diagnostic mode"? y/n [n]:
enable "use net in IP bcast address"? y/n [n]:
enable "load rom after netboot fails"? y/n [n]:
enable "use all zero broadcast"? y/n [n]:
disable "break/abort has effect"? y/n [n]:
enable "ignore system config info"? y/n [n]:
change console baud rate? y/n [n]: y
enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400
4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [0]: 7
change the boot characteristics? y/n [n]:
Configuration Summary
enabled are:
break/abort has effect
console baud: 115200
boot: the ROM Monitor
do you wish to change the configuration? y/n [n]:
You must reset or power cycle for new config to take effect.
rommon 2>
3. When you reset the router in your console window you will see characters that you cannot read. You have to stop the session and set your baud rate to 115200. This will let you increase the speed that you use to transfer the file.
4. At the rommon prompt enter xmodem -c {filename}
5. When prompted, enter y to continue
6. From your hyperterminal prompt, click on transfter then send file
7. Select the IOS image then change the protocol to xmodem via the dropdown box then click send.
8. After the IOS has been downloaded, change the boot order by using the confreg 0x2102 command.
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