mlc, the website has the following commentary on licensing:
WinGate VPN licensing works in the following way:
Firstly, you need to figure out how many installations of the software you need, since you need to purchase a separate license for each installation. You will need one installation for every LAN you want to join into the VPN, or for every remote single user that will be joining the VPN. For example, if you want to connect a small network to the VPN, you would need a gateway license for that network. If you want to allow a mobile user to dial up into the VPN, you would need a single user license for that user.
Secondly, for every separate LAN you wish to be able to participate in the VPN, you need to figure out what size gateway license you require. This is based on the size of that LAN. For a LAN with say 25 computers on it, most of whom want to access the VPN, you would need a gateway license for 25 user LAN. If say only 2 of these computers were going to use the VPN, then you could use a gateway license for 3 user LAN
What that means in plain English is this:
A VPN consists of multiple networks (2 or more) connecting together to form one virtual private network. You need one license for each network that will be participating. The size of the license required for each network is determined by the number of machines on that network that you want to give access to the VPN.
So, as an example:
If you have one NT Server with no machines on it's network, you need a single user license for that server.
Now, you have three other users, each with a laptop (Sales team?) that want to join your VPN. You need another single user license for each of them.
Another example:
If you have one NT Server with three machines on it's network you need a 6 user gateway license. (One for the server, 3 for the other machines).
Now, if you have a user outside of your network who wants to connect in from their laptop you will need a single user license for that user.
If you have another user outside of your network that wants to connect in, from home, for example, who has 2 computers at home that will be participating in the VPN, you will need a 3 user license for that network. (One for each participant from that network)
Hope that makes it clear and understandable. You can also contact our sales and support team directly for assistance with licensing questions like that.