Hello, i am a MAC book Pro , and i connect to the internet using a ADSL wireless modem. my isp has provided me a static ip address. i wish to share my internet on to my windows PC , so that we can use internet at the same time.
if the wireless modem has a built in DHCP server, just configure the wired connection of your MAC book (I assume you have one) to acquire its address via DHCP. I assume that is how the wireless NIC on your MAC book is getting its address on the LAN. After doing so your wired NIC will be on the same subnet as the ADSL wireless and should be able to access the internet.