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External Network Connectivity
Set Up and Run a VPN Connection
Max. Connection Time Per Session
Special notes for Apple Mac OS X 10.9.x to 10.10.x or iOS (iPhone/iPad) 7.x to 8.x


  • Applications running on a VPN session may be interrupted every 48 minutes.
  • During the interrupted period, applications normally will try to perform recovery itself.  If the recovery can be made successfully, the application can be used again after a short pause. Otherwise, users will find the applications stop working and need to restart the applications.


  • There is no solution right now.  ITSC is now working with Apple to fix this problem.

Step 1

Prepare the following before setting up VPN clients:

  1. computer installed with LAN card
  2. your Computing ID and CWEM password

Step 2

Click below for Windows L2TP IPSec Protocol setup procedures for:

  1. Windows 10
  2. Windows 8.0/8.1
  3. Windows 7

User guides for other VPN connection methods:

  1. Mac OS X 10.7 or above
  2. iPhone and iPod Touch (iOS7) (setup file can be downloaded at
  3. Android 4.x
  4. Android 3.x
  5. Fedora Linux 20 (download script files)
  6. Fedora Linux 8
  7. Ubuntu Linux version 14.04 (download script files)
  8. Ubuntu Linux version 12.04
  9. Ubuntu Linux version 11.04

Details of VPN Servers:

  • Hostname: (for all VPN services)
  • Max connection time per session: 8 hours with 1 hour idle time out
Connection Services

Number of VPN Services

Total Max. No. of Concurrent Users Supported

Classrooms or other Campus Areas (ClassNet)

2 Aruba Controller

(via Public ISP Network)

2 Aruba Controller

The ITSC would suspend your VPN access to the Campus Network and disable your current network connections when a huge amount of abnormal network traffic was generated from your computer.

For more details, please refer to


Need Help?
For comments and enquiries about this service, please write to the ITSC Service Desk at

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