Winnipesaukee Forum - View Single Post

Knot Droolin' · 06-06-2007, 11:55 PM

Geosynchronous orbit is around 20K miles above the earth. If you are doing anything but web surfing latency will be a large issue. VOIP will be a mess if it works at all. VPN should work but as Codeman said the upload speed will drop depending on the number of users on the node (sat) you are connecting to or simply due to weather. TCP resend traffic can also be a nightmare if packets are dropped during bad weather.

If you plan to VPN for email such as Outlook, that should be no problem. If you plan to run applications over the VPN, that will be painful. Speeds are similar to Verizon wireless but latency will be alot higher simply due to the speed of light; 20K miles up and 20K miles down, then onto the internet somewhere on earth, accross the internet to the server you are connecting to, and then back again to your PC. Quite a long trip, no?

Any problems firing up your VPN (I am assuming IPSEC is the protocol) then the most likely culprit is MTU size. Reduce it. Also use UDP as the connection protocol rather than TCP, less overhead for the connect.

Good luck!

06-06-2007, 11:55 PM	#7
Knot Droolin' Member Join Date: Mar 2007 Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts	VPN & Voice Geosynchronous orbit is around 20K miles above the earth. If you are doing anything but web surfing latency will be a large issue. VOIP will be a mess if it works at all. VPN should work but as Codeman said the upload speed will drop depending on the number of users on the node (sat) you are connecting to or simply due to weather. TCP resend traffic can also be a nightmare if packets are dropped during bad weather. If you plan to VPN for email such as Outlook, that should be no problem. If you plan to run applications over the VPN, that will be painful. Speeds are similar to Verizon wireless but latency will be alot higher simply due to the speed of light; 20K miles up and 20K miles down, then onto the internet somewhere on earth, accross the internet to the server you are connecting to, and then back again to your PC. Quite a long trip, no? Any problems firing up your VPN (I am assuming IPSEC is the protocol) then the most likely culprit is MTU size. Reduce it. Also use UDP as the connection protocol rather than TCP, less overhead for the connect. Good luck!