3. If I want to use VPN to connect my 4 domains, which device do I need? Model number? I know I can assign the public IP address to one of my server?s NICs to let this NIC wait for VPN calls but I don?t think it is secure. Could I use a device such as route to let the VPN calls go to the router first then let the router route the VPN package to my server or I can use a hardware device called VPN server? Which brand and model number? My client domain will use ADSL (dynamic IP address), is there any device can start a VPN call to my server? Model number? If I use VPN router in each domain then I will never need to use the Windows 2000 VPN function because the VPN devices will be dealt with the VPN connection by itself?
Any idea will be appreciated. Thank you!
Mgtang