Windows2003 implements NAT network sharing method

Using NAT to achieve network sharing This is a method that many enterprises are keen on. Windows 2003 adds support for VPN on the basis of win2000, so in win2003 system, you can not pass the third party. Software to achieve NAT network sharing.

Hardware: Dual network card, one connected to ADSL modem, one connected to LAN.

First right click on "My Computer", select "Manage", in "Local Users and Groups", add a VPN connection username and allow remote connections. Then open “Control Panel/Administrative Tools", double-click on the "Management Server", select "Add Delete Role", and add "Remote Access/VPN".
Add VPN Service
Set NAT Forwarding

If you have not set up a connection to ADSL, after selecting "Create a new demand-dial interface to the Internet", it will pop up The setting window of the ADSL dial-up connection can be set according to the usual ADSL dial-up connection settings.
Setting the network card to connect to the Internet
Setting the network card to connect to the internal network

Or open the "Management Server" to enter the "Remote/VPN" management, as shown in the figure:
Manage VPN Connections

Right-click on the ADSL connection and select “Properties  in which you can modify the mode and properties of the dial-up connection. Properties

herein may also be modified dial-up connection is provided next to the VPN connection with VPN firewall port open, right-click & ldquo; & rdquo ;, port select & ldquo; & rdquo ;, the default attributes The number of VPN connections is “PPTP" 5, L2TP 5 & rdquo;, which can be modified in the properties.
Modify the properties of the VPN

Right-click on the server you created and select "Properties". Next, set the IP address when the VPN is dialed in. If you have a DHCP server, you can use it.
Set the dial-in IP address

Then set the firewall rules, otherwise you can't get in, right-click your ADSL connection, select “properties", double-click “VPN gateway (PPTP)”, Set it inside, of course, you can also use the default firewall, and install ISA2004 better.
Setting the dial-in firewall

After installing a dynamic domain name resolution on the server, it should be more convenient to connect to the VPN.

The above small series introduces the new VPN function that is added to the win2003 system. You can implement the NAT network sharing setting without using third-party software. Hurry and try it.