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Legacy Forums => General Discussion (Legacy) => Topic started by: andersonpaul on February 08, 2006, 11:59:56 PM

Title: Can SME be used with satellite internet
Post by: andersonpaul on February 08, 2006, 11:59:56 PM

I was wondering if anyone knows if possible (and how) SME might be used to connect two satellite internet connections with some kind of VPN solution.  I have read that one needs to use a SSL VPN solution? although I am not for sure it is absolutely required?  Has anyone ever done this before?

Title: Can SME be used with satellite internet
Post by: jfarschman on February 09, 2006, 03:32:17 PM

Paul,

  Try searching around the forum on freeswan  It should work for you, but I think you are going to have some performance issues.   Based on what I know about physics and geosynchronous orbits.... the signal has to travel roughly 72,000km before it bounces off a transponder and arrives back on Earth.  

This causes a 1/4 second delay.

Add a second hop into space to your next land station and you have another 1/4 second lost.  The encryption of everything VPN software and the various codec delays are pretty minimal when compared with a 1/2 second delay added to the overall latency.

I guess what I'm saying is your are probably going to have a nasty bottleneck caused by too much latency.  You may not like the results  :-(

Title: Thanks
Post by: andersonpaul on February 10, 2006, 11:29:14 PM

Thats kind of what I thought.  Appreciate the fast respone :-D