Cisco VPN client may not work on Windows 10 directly. After upgrading to Windows 10 threshold 2 (version 1511, build 10586), the system said the Cisco VPN client cannot run on it. So I reinstalled it according to the instruction on itservice.manchester.co.uk. It woks finally after some tweaks.
Android 上现在使用 VPN 服务很方便了，只要开启，所有流量都会经过 VPN。这样就可以通过创建一个本地的 VPN 服务来过滤出入手机的流量。当然这个 VPN 服务并不需要真的接入 VPN 服务器，仅仅是在本地加入一层过滤。随手在 Google Play 查了一下，已经有免费的应用了，名字就是 NoRoot Firewall。
There is an instruction page of VPN for Linux on Knowledge Base of IT service of the University of Manchester. But the client software cannot be compiled correctly in openSUSE 13.2. So I chose to install the alternative Shrew client software. It’s not easy, too. Here is my installing record.