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Community Member

Cisco 837 IOS

I have obtained a Cisco 837 ADSL router, but the image has been damaged so the IOS needs reloading. How do I go about putting the image back on for this Cisco so it restores it as new (factory defaults). Thanks

2 REPLIES

Re: Cisco 837 IOS

Hi

You can make use of the following command to put back the things in place.

http://www.cisco.com/en/US/products/hw/routers/ps380/products_tech_note09186a008009429e.shtml

regds

Community Member

Re: Cisco 837 IOS

If your IOS is damaged the router will be going to rommon mode on power cycling the router you will see a prompt like this rommon 1>

Now, Connect your system and router using a straight through cable. Assign an ip address to your PC/laptop (for example) 1.3.6.1 with a netmask of 255.255.255.0 and the default gateway as 1.3.6.1. Before this download the tftp server (solarwinds is good). Place the IOS image on the root directory of the TFTP server and start the tftp server. Now assign the following commands and the commands are case sensitive.

tftpdnld -r

IP_ADDRESS=1.3.6.7

IP_SUBNET_MASK=255.255.255.0

DEFAULT_GATEWAY=1.3.6.1

TFTP_SERVER=1.3.6.1 <------- PC/Laptops IP address.

TFTP_FILE=xxxxxxxxxxxxxxxxx.bin -----------------Your IOS image name.

tftpdnld

reset

Once resetted, your router will be taking you into the proper config mode.

Hope this might help you.

Thanks

Rajesh

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