Re: cryptographic accelerator for a laptop

2009-01-14 Thread Guido Tschakert
ro...@cs.wisc.edu schrieb:
 I recently started using a VPN with my laptop for when I travel(which is
 quite often) and I have noticed a detectable degradation when going
 through the VPN especially when using streaming video. My laptop is a few
 years old and the problem isn't that big a deal but I was wondering if
 there is a card I could buy that I could offload the work to. Hopefully
 one that isn't very expensive would be nice. Just wondering if anybody has
 any suggestions.
 
 roger
 

Hello,

you forgot to mention a lot of information:

what kind of vpn you are using?


what kind of laptop you are using?

As you want to add hardware, where is the mesg?

btw:
I am not aware of any pcmcia device, usb device or pci express card
doing cryptographic acceleration, but i am not that expert. But I think
if you find such a thing, it is cheaper to buy a new laptop ;-)

and another thing: maybe it would help to tweak your vpn config, but
therefore it is needed!

guido



Re: cryptographic accelerator for a laptop

2009-01-14 Thread Jussi Peltola
On Wed, Jan 14, 2009 at 09:27:31AM +0100, Guido Tschakert wrote:
 ro...@cs.wisc.edu schrieb:
  I recently started using a VPN with my laptop for when I travel(which is
  quite often) and I have noticed a detectable degradation when going
  through the VPN especially when using streaming video. My laptop is a few
  years old and the problem isn't that big a deal but I was wondering if
  there is a card I could buy that I could offload the work to. Hopefully
  one that isn't very expensive would be nice. Just wondering if anybody has
  any suggestions.
  
  roger
  
 
 Hello,
 
 you forgot to mention a lot of information:
 
 what kind of vpn you are using?
 
 
 what kind of laptop you are using?
 
 As you want to add hardware, where is the mesg?
 
 btw:
 I am not aware of any pcmcia device, usb device or pci express card
 doing cryptographic acceleration, but i am not that expert. But I think
 if you find such a thing, it is cheaper to buy a new laptop ;-)
 
 and another thing: maybe it would help to tweak your vpn config, but
 therefore it is needed!

Soekris has minipci hifn cards, but I agree, a crypto accelerator is the
wrong solution.

-- 
Jussi Peltola



Re: cryptographic accelerator for a laptop

2009-01-14 Thread Guido Tschakert
Guido Tschakert schrieb:
 ro...@cs.wisc.edu schrieb:
 I recently started using a VPN with my laptop for when I travel(which is
 quite often) and I have noticed a detectable degradation when going
 through the VPN especially when using streaming video. My laptop is a few
 years old and the problem isn't that big a deal but I was wondering if
 there is a card I could buy that I could offload the work to. Hopefully
 one that isn't very expensive would be nice. Just wondering if anybody has
 any suggestions.

 roger

 
 Hello,
 
 you forgot to mention a lot of information:
 
 what kind of vpn you are using?
 
 
 what kind of laptop you are using?
 
 As you want to add hardware, where is the mesg?
 
 btw:
 I am not aware of any pcmcia device, usb device or pci express card
 doing cryptographic acceleration, but i am not that expert. But I think
 if you find such a thing, it is cheaper to buy a new laptop ;-)
 
 and another thing: maybe it would help to tweak your vpn config, but
 therefore it is needed!
 
 guido

Another question comes to my mind.
What speed do you get through your VPN and what speed do you expect/need
(specially for streaming video).
Another problem might be that your CPU cannot handle vpn and video at
the same time. (so the speed of the vpn is not your problem)
If this is your problem, maybe a new graphic card is a solution (which
also isn't quiet easy to change in a laptop)

guido



Re: cryptographic accelerator for a laptop

2009-01-14 Thread Stuart Henderson
On 2009-01-14, ro...@cs.wisc.edu ro...@cs.wisc.edu wrote:
 I recently started using a VPN with my laptop for when I travel(which is
 quite often) and I have noticed a detectable degradation when going
 through the VPN especially when using streaming video.

What does top say while you're trying to stream video? (if it's
hard to copy it quickly enough to paste in, top | cat gives a one-
shot display).



cryptographic accelerator for a laptop

2009-01-13 Thread roger
I recently started using a VPN with my laptop for when I travel(which is
quite often) and I have noticed a detectable degradation when going
through the VPN especially when using streaming video. My laptop is a few
years old and the problem isn't that big a deal but I was wondering if
there is a card I could buy that I could offload the work to. Hopefully
one that isn't very expensive would be nice. Just wondering if anybody has
any suggestions.

roger