Yep, I did. The DNS and gateway came from the ISP company. The ISP co gave my sis 13 usable static IPs.
I have 2 NICs, the one I used as the WAN and the other the LAN. I installed the pf via VB. the pfbox shows a WAN IP and LAN IP.
I can browse, within the host pc, but when I connect the LAN to switch hub, all her laptop connected from the switch hub can connect to the internet or say it shows to internet at all. So I must be missing something.