Thumb drives

Unanswered Question
Dec 12th, 2008
User Badges:
  • Purple, 4500 points or more

Can you use any brand thumb drives in say the 3800 series routers or do they have to be cisco branded drives ?

update: appears you can only use cisco branded drives at about $300 for a 256 meg . Guess it wouldn't make sense to be able to buy a 4 gig drive for like $20 and be able to use it .

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4 (2 ratings)
Joseph W. Doherty Fri, 12/12/2008 - 18:56
User Badges:
  • Super Bronze, 10000 points or more

I had success with some brand X in 2800s, haven't tried them in the 3800 series. I think I discovered they might need to be 256 MB or smaller (which are a bit hard to find for new ones) and formatted on the router (or on a PC but not in FAT32).


Think this question was raised before. So you might also search the forum.

Mark Yeates Fri, 12/12/2008 - 19:05
User Badges:
  • Gold, 750 points or more


I have been able to successfully use a flash drive (non Cisco) on the 800 and 2800 series routers. I believe it had to be formatted by the router... Also I am thinking that there are size limitations to the USB drive like the CF cards on routers and switches.

P.S. If I remember correctly you may need a rommon upgrade to support booting from USB.



glen.grant Sat, 12/13/2008 - 07:12
User Badges:
  • Purple, 4500 points or more

Thanks for the info ...


This Discussion