Private Ip And Real Ip Based Vpn Solution Features
1. Private IP and Real IP based VPN solution features
Private IP based VPN:
• No Real IP is required, only fixed Private IP.
• Fixed Private IP provided machines will communicate through PDSN.
• Internet connectivity is not mandatory for this type of solution.
• Internet access is not possible with Fixed Private IP.
• Require a VPN server to be installed with minimum system compatibility.
• VPN server is not exposed to Internet as Fixed Private IP is used.
• Only one NIC card is required for the VPN server.
• The connection between remote users and VPN sever is established by
tunneling through PDSN.
(See network diagram in page 2)
Public/ Real IP based VPN:
• Real IP is required instead of Fixed Private IP.
• Real IP is provided in one interface of VPN server.
• Internet connectivity is mandatory for this type of solution.
• Remote users wish to communicate with VPN server must have Internet
connectivity.
• Require a VPN server to be installed with minimum system compatibility.
• VPN server is exposed to Internet as Real IP is used.
• Must have two NIC cards for VPN server.
• The connection between remote users and VPN sever is established by
tunneling through Internet.
(See network diagram in page 3)
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2. 10.2.10.x Huawei Data Modem
(Fixed IP)
Remote User
Internet
PDSN
Huawei Data Modem
Ext IP: 10.2.10.x (Fixed IP)
LAN Switch
VPN Server Int IP:
192.168.1.x
Corporate LAN
Host 1 Host 2
192.168.1.x Server 192.168.1.x
192.168.1.x
Fig: Private (Fixed) IP Based VPN solution
Prepared by: A. M. Ishtiaque Mazid
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3. Huawei Data Modem
Remote User
10.1.x.x
(Dynamic IP)
Internet
Ext IP: 203.76.x.x (Real IP)
LAN Switch
Int IP:
VPN Server 192.168.1.x
Corporate LAN
Host 1 Host 2
192.168.1.x 192.168.1.x
Server
192.168.1.x
Fig: Real IP Based VPN solution
Prepared by: A. M. Ishtiaque Mazid
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