V.P.N Configuration

Posted on 2004-09-26
Last Modified: 2010-04-10
I want to know that how can i configure the V.P.N and what is the major benefits of V.P.N
Question by:kaliabutt
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Accepted Solution

changlinn earned 25 total points
ID: 12158031
Simply put a vpn is a virtual private network, meaning that you can make a virtual link between two computers from accross the world. For example two offices want to share accounting data, one is in Europe, the other in Asia and they don't want anyone to intercept the information, in fact they want the people in asia to be able to do things on the europe network as though they were plugged in there, rather than rolling a cable direct from asia to europe (other than the expense there are other reasons this is unviable) both companies could have a standard internet connection that supports vpn tunneling and routers that also support vpn tunneling, everyone on the asian network can share files, folders, servers, and even printers with the european office meaning they can print to printer in europe or save on costs of servers and have one server in europe.
The VPN tunnel as it is called is encrypted usually from 128bit through to openvpn's insane yet secure 2056bit encryption, basically this means the data is jumbeled up according to an algorithym then un-jumbled at the other end, the higher the number the more jumbled it is, the harder it is to break the encryption.
If you want to share sensitive data but can't afford a physical line vpn is the only way to go.

Assisted Solution

whiting002 earned 25 total points
ID: 12158742
changlinn's explanation of a VPN is about as good of an explanation as you're going to get.  In regards to the other part of your question, how to configure a VPN; it all depends on what kind of VPN you are going to implement.  Windows 2000 and XP both have built in VPN's that you can configure if you are looking at simply accessing your home network from work to grab a few files.  This option is free if you already have the operating system installed you your computer.  Now if you are planning on implementing this VPN for a business you may want to look at something more robust such as Cisco which will cost extra money for the server software.  Usually the client software is free.  Either way the basics involve installing and configuring the server end of the vpn on one individual computer from the network you wish to access; and then installing the appropriate client software on each computer which will access your network from the outside using VPN.

Expert Comment

ID: 12158766
Sorry I forgot one thing.  If you are looking at setting up a VPN in order to access a small network such as a home network or a small business you could look into a router with a built in VPN such as Linksys' "Cable/DSL VPN Router with 4-port Switch",  I found it on amazon for $99.99,

Expert Comment

ID: 12159744
Just one further point, most routers nowdays support vpn tunelling, or you can just forward the standard vpn ports to the right machine n your network, if you are looking for a cheap and robust solution check out or just use windows standard, openvpn is more secure but it isn't for everyone.

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