Hot Downloads

×

Notice

The forum is in read only mode.
Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC: Cisco Router

Cisco Router 10 years 4 months ago #25462

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

Re: Cisco Router 10 years 4 months ago #25464

  • S0lo
  • S0lo's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 1577
  • Karma: 3
  • Thank you received: 7
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

Re: Cisco Router 10 years 4 months ago #25465

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.

Re: Cisco Router 10 years 4 months ago #25466

  • S0lo
  • S0lo's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 1577
  • Karma: 3
  • Thank you received: 7

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.

Re: Cisco Router 10 years 4 months ago #25469

Seems ur right Matey!

Im learning every day :)
Thanks

Re: Cisco Router 10 years 4 months ago #25471

  • S0lo
  • S0lo's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 1577
  • Karma: 3
  • Thank you received: 7

Seems ur right Matey!

Im learning every day :)
Thanks


Sure, no prob :D. Hope it works for Rockape though
  • Page:
  • 1
Time to create page: 0.161 seconds

CCENT/CCNA

Cisco Routers

  • SSL WebVPN
  • Securing Routers
  • Policy Based Routing
  • Router on-a-Stick

VPN Security

  • Understand DMVPN
  • GRE/IPSec Configuration
  • Site-to-Site IPSec VPN
  • IPSec Modes

Cisco Help

  • VPN Client Windows 8
  • VPN Client Windows 7
  • CCP Display Problem
  • Cisco Support App.

Windows 2012

  • New Features
  • Licensing
  • Hyper-V / VDI
  • Install Hyper-V

Linux

  • File Permissions
  • Webmin
  • Groups - Users
  • Samba Setup