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VPN (WinCE)

 
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Overview

Virtual Private Networking (VPN) enables device connecting private networks or servers over internet/public networks. Layer Two Tunneling Protocol (L2TP)/IP Security Protocol (IPSec) and Point-to-Point Tunneling Protocol (PPTP) provide communications services and networking capabilities available in WinCE.

By default in Toardex WinCE Image does not include catalog item for establishing VPN communication services(L2TP/IPsec or PPTP).

Prerequisite

  1. Platform builder(WinCE 6.0 or WEC 7.0 depends which image you are working on).
  2. Toradex WinCE platform builder Workspace and BSP.

Note: We have not tested VPN on CE5.0, WEC2013 but it should work same way.

Platform Builder catalog items to add to enable VPN communication services

  1. SYSGEN_PPTP :- Point-to-Point Tunneling Protocol
  2. SYSGEN_L2TP :- Layer 2 Tunneling Protocol and IPSec
  3. SYSGEN_CERTS :- Cryptography API: Next Generation (CNG) Key Storage and Retrieval
  4. SYSGEN_CRYPTO_DSSDH :- Diffie-Hellman/DSS Provider

Steps

  • Add above mentioned item in catalog Item View, then run Sysgen command in visual studio 2008(Build -> Advance Build Command ->Sysgen(blddemo -q). It will take some time depending upon your PC speed.
  • After Build succeeded, update your image with created image.
  • Navigate to Control Panel->Network and Dial-up Connections -> Make new Connection. Now VPN communication features should be available.

  • Configure VPN according to your server PSK(pre-shared key), server IP, username and password.
  • A new connection will be available in Network and Dial-up Connections for VPN connection.

Internal Tests

We have tested VPN with free VPN service online

L2TP/IPsec

Visit http://www.vpngate.net and select a VPN server with L2TP/IPsec support.
We selected a Japanese server:

Parameter Value
Host Name or IP vpn985383743.opengw.net
PSK(Pre-Shared Key) vpn
user name vpn
password vpn

PPTP

Warning: At the time of reviewing this article (2018-05-15) the test server listed below did not accept the connection anymore. Visit https://freevpn.me/accounts/ and choose a server.
For our test we used

Parameter Value
Host Name or IP 93.115.83.250
user name pptp
password QbtRf9p

Note:

  • VPN catalog item is part of core license so you don't need to buy any additional WinCE license.
  • Above mention credential can be changed by service provider.
  • In case you have any questions/feedback, please send us an email at support@toradex.com.