I'm using CentOS 6.3 and for connecting to the Internet I need to connect my VPN first (PPTP connection), and I need to share Internet over WiFi for other laptops in my room.
I followed this guide, but the other computers are not getting Internet access.
My LAN is eth0, my VPN is ppp0.
In my wireless connection's IPv4 settings, I chose Shared to other Computers.