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Cisco Router

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16 years 9 months ago #25462 by Rockape
Cisco Router was created by Rockape
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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16 years 9 months ago #25464 by S0lo
Replied by S0lo on topic Re: Cisco Router
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
Forum Moderator
www.firewall.cx
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16 years 9 months ago #25465 by Chojin
Replied by Chojin on topic Re: Cisco Router
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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16 years 9 months ago #25466 by S0lo
Replied by S0lo on topic Re: Cisco Router

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
Forum Moderator
www.firewall.cx
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16 years 9 months ago #25469 by Chojin
Replied by Chojin on topic Re: Cisco Router
Seems ur right Matey!

Im learning every day :)
Thanks

CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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16 years 9 months ago #25471 by S0lo
Replied by S0lo on topic Re: Cisco Router

Seems ur right Matey!

Im learning every day :)
Thanks


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

Studying CCNP...

Ammar Muqaddas
Forum Moderator
www.firewall.cx
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