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Nov 3rd, 2007 at 3:44pm
I have a customer that does exactly what you are describing. They download wav files and then transcribe them. They are using Starbands service because it gives them a free download window between the hours of 12 Midnight and 6 AM EST. They use a download manager to get the files while she sleeps, works on them during the day and then up loads the result. She is doing this all on a VPN.
Coupla things on the VPN.
We do have a substantial number of customers working from home using VPN.
The best VPN performance is obtained when using a SSL based VPN such as V-One or Neoteris. The IPSec VPN's are very slow over satellite, usually comparable to a 56k dialup connection or less.
That being said, a lot depends on what you are doing. If you are moving files using a SSL based VPN performance is very good. Do you know which type of VPN you will be using? If it is SSL based and you are just downloading and uploading files they you should be fine.
The problem comes in when you start using applications. Applications like Outlook are very chatty, open up a lot of connections, and performance suffers. Another problem we run into a lot is that people not only want to run VPN, they want to remote control another PC through the VPN using PCAnywhere or Citrix. This is a double whammy. It would probably be barely useable if you needed to use it a few minutes a day. IF you had to use it all day, you would probably want to bang your head on the wall by the end of the day! It sounds to me like this will not be the case for you so that is good.
IF your client is using Cisco VPN, I understand there is a SSL add-on available for the Cisco IPSec VPN. If they have a mait. contract w/ Cisco, I've been told this add-on is free, and just requires a download.
VPN's by their very nature are extremely chatty applications because just about every packet sent has a security handshake associated with it, with at best a 3/4 sec ping time for each of those you can see how it's like listening to Ravels Bolero in slow mo.
Your IT dept, if they are willing can configure the client connection to only do an initial security handshake at the beginning of the session and only do another one if the session goes idle for a predetermined time period, this can help a lot but not many companies are willing to do this.
If it is an IPSec VPN You can go into the configuration properties and under the transport tab check enable transparent tunneling to improve performance a bit and eliminate dropped connections.
If you would like to personally talk to this customer of ours I would be happy to put you in touch with her.
Just contact me privately.
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