Ad-hoc + managed mode


I am working with three computer (two pc’s and one laptop) which have opensuse and wireless cards.
I have pc1 connected to internet through a cable and I put it in master mode.

The pc2 is in managed mode connected to pc1.

Now I want connect the laptop to the pc2. I know that I have to create another virtual network in ad-hoc mode in the pc2, but really I am having a lot of problems to do that.

May be someone can help me.

Thank you very much.