vpn - centos搭建的vps，使用win7连上后无Internet访问？

Question

我买了个香港的云服务，系统是centos6.4的。
按照这篇教程，搭建的pptpd
http://www.dabu.info/centos6-4-structures-pptp-vpn.html
然后按照下面的这篇文章修改了
http://answers.microsoft.com/zh-hans/windows/forum/windows_7-update/windows7/3cdef15d-b0f9-4abf-86b4-d1be8db8b1f9?auth=1

使用windows7的可以连接成功，却显示无Internet访问，不知道是怎么回事？vpn要怎样才能搭建成功呢？

Answer 1

Just add a forwarding rule to iptables

Answer 2

How much did it cost? ?

Answer 3

I also tried UBUNTU. After adding forwarding rules, I can still connect but cannot access the Internet