Configuring VPN Network in Windows Server 2008 R2

First of all take Server Manager

Role:
Add Role -> Network Policies and Access Services


Role Services :
a. Network Policy Server
b. Routing and Remote Access Server (RRAS)


Confirm it and Finish.

Then the Network Policies and Access Services wil be visible under Roles menu.

Elaborate it
Routing and Remote Access
Hear you will see a red arrow means the services is not configured.
Right Click (RC) it -> Configure and enable Routing and Remote Access
Wizard Comes - >
Configuration -> Custom Configuration -> VPN Access -> Finish
Then system asks for start service or not. Start the service.
It will take for a minute to start the service.


Then you can see the red arrow we mentioned earlier is now turned to green. means the service Routing and Remote Access,  is configured well and is up and running.

Click on Ports sub menu
RC -> Properties ->
Hear we are going to disable some devices (protocols) that we don't need here.

Point to Point Tunneling Protocol (PPTP) is the only device we need here. So please remove all the others.

Double Click (DC) on Point to Point Tunneling Protocol:
















Here you can specify maximum port limit, means the maximum connections you want to establish at the same time, with this VPN server. If you have a small company, you working ten people, you can choose ten here.
The maximum ports you can enable is 128.  For security reasons, you should choose the minimum.

Click Ok

Now you should choose your company DHCP server to get an IP address for the one who trying to log in to company network from outside.

Procedure:

on Routing and Remote Access sub menu, you can find IPv4 menu. In that take DHCP Really Agent.



















Give your DHCP server address here. Add it.

Sub menu Remote access Logging policies -> RC -> Launch NPS (Policy server)

Network Policies -> Connections to Microsoft Routing and Remote Access Server-> DC
Click the radio button: Grand Access. Grand access if the connection request matches  this policy.


In the next step you add the MS- RAS vendor

Add -> user Groups -> Domain Users (your specific user group) -> Apply.

Next step is to Log all events:

Procedure:
RC Routing and Remote Access -> Properties -> Logging Tab -> Radio Button : Log all events -> Apply.

Now you test your VPN server settings. You have to ensure that your Router passes through PPTP Traffic whether its home router or a professional CISCO based router.

Thank You!
Abhishek Srivastava


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