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TOPIC: Cisco Router

Cisco Router 8 years 8 months ago #25462

  • Rockape
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Hi Folks, I committed a very basic "School boy error" not once, but twice :shock:

I was working on a Cisco 801 router, and deleted the IOS. I then turned the router off (Doh!). So now when I turn the router on, nothing happens, even if I connect using Hyperterminal. I know, I'll take some stick from the bishop when he is back in work. So, can anyone suggest anyway I can get an IOS backon onto an 801 router that doesn't have any.

Cheers

Rockape
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Re: Cisco Router 8 years 8 months ago #25464

  • S0lo
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You need to setup a TFTP server on a PC (freeware here: www.softpedia.com/get/Internet/Servers/O...ds-TFTP-Server.shtml) and load the IOS file into it. Then you need to go to ROMmon mode (by pressing Ctrl+c) while the router is booting and then download the IOS file from the TFTP server. (type ? in ROMmon to get a list of all commands):

more here: helpdesk.tipg.net/index.php?_m=knowledge...le&kbarticleid=1
Studying CCNP...

Ammar Muqaddas
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Re: Cisco Router 8 years 8 months ago #25465

  • Chojin
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ISN't TFTP based on your IOS ??

I believe you have to use a null-modem cable directly towards your Router which will negotiate with the internal cisco-os (rom) to make it feasible to upload your IOS.
CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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Re: Cisco Router 8 years 8 months ago #25466

  • S0lo
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ISN't TFTP based on your IOS ??

Does'nt seam so, articles.techrepublic.com.com/5100-1035-5623025-2.html

www.cisco.com/en/US/products/hw/routers/...186a008015bf9e.shtml

TFTP should work with ROMmon via the "tftpdnld" command and is the fastest way. It can be done with Xmodem but it will take ages.
Studying CCNP...

Ammar Muqaddas
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Re: Cisco Router 8 years 8 months ago #25469

  • Chojin
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Seems ur right Matey!

Im learning every day :)
Thanks
CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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Re: Cisco Router 8 years 8 months ago #25471

  • S0lo
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Seems ur right Matey!

Im learning every day :)
Thanks

Sure, no prob :D. Hope it works for Rockape though
Studying CCNP...

Ammar Muqaddas
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