NetworkHelper is a Windows utility that configures your (Windows) VPNs to use split tunneling and sits on the tray and waits for you to connect to or disconnect from them; when this happens, it automatically adds and removes pre-configured routes (using route add and route delete just like you would using the Command Prompt).

Download a .zip file with the latest binaries from the releases page.

• Add an in-depth guide.

• You need to edit NetworkHelperConfiguration.xml with something like this:

  <Vpns>
    <Vpn>
      <Name>My VPN name</Name>
      <DnsSuffix>some.suffix.com</DnsSuffix>
      <Routes>
        <Route>
          <Description>A database server</Description>
          <DestinationIpAddress>192.168.44.33</DestinationIpAddress>
        </Route>
        <Route>
          <Description>A range of workstations</Description>
          <DestinationIpAddress>192.168.45.0</DestinationIpAddress>
          <Mask>255.255.255.0</Mask>
        </Route>
      </Routes>
    </Vpn>
  </Vpns>

  It's essential that the VPN name in this configuration exactly matches the name of the VPN created in Windows.

• When you connect to the VPN named My VPN name NetworkHelper will automatically add those routes; and when you disconnect from it, it will remove them.

• You can also add and remove routes at any time by right clicking on the tray icon.

• When stared, NetworkHelper will search Windows for matching VPNs and configure them to:

  • Use split tunneling.
  • Don't use RAS credentials (to allow some stuff like SQL Server Windows Authentication).
  • Use the provided DNS suffix (if any).

• You can configure NetworkHelper to start with Windows.

• There are more configuration options available, look at Vpn.cs and Route.cs.

NetworkHelper runs on Windows XP and up, both x86 and x64. However, it has only been tested on:

• Windows XP x86
• Windows Server 2008 R2

If you successfully run NetworkHelper on a different Windows version, open an issue to let me know and I'll list it here (or better yet: send a PR!).

Requirements:

• .NET Framework 4.0
• NetworkHelper needs administrator privileges in order to add and remove routes.

• DotRas
• Task Scheduler Managed Wrapper
• log4net