1、通过yast2按照cisco vpn软件 《思科vpn集中器客户端》;
2、在/usr/sbin下运行：./vpnc
输入相应信息：
Enter IPSec gateway address: 112.112.15.87
Enter IPSec ID for 112.112.15.87: ynszsj
Enter IPSec secret for ynszsj@112.112.15.87:
Enter username for 112.112.15.87: ynszsj
Enter password for ynszsj@112.112.15.87:
RTNETLINK answers: File exists
VPNC started in background (pid: 5265)...
vpn连接启动并在后台运行。
