Need help urgently !!!

[wlm2]

The level of principle, I need to know what kind of topology i need to use

for my alix board.

I mean I bought a board called ALIX 6E1 how has two ports (ETHERNET (vr0 vr1.
I want to set the board to use as a router.

I want to know Should I set the vr0 as WAN and set it as dhcpclient who

gets the IP address from the modem or through a wireless network card

form my laptop who is connected to the home router .

In addition the vr1 port as LAN and configure it as dhcp server which will

give an ip address to my laptop behind it.

Do I need to configure NAT between the two ETHERNET port or is there

another way to implement these settings.

I run on the board OPENBSD 4.9 operating system and the laptop I have

WIN 7 64 BIT.

I'm trying for a long time to figure out what option to choose to define the

best and fastest.

In addition there is a USB port in the board that I want to connect to

NETSTICK mobile communications.

I mean I also need to set some kind of protocol regulating communication when I'm connecting Through a dsl and i lose comunecation I will pass to the mobile communications.

I would welcome any help given, I'm sorry for my misunderstanding but this how i learn .
Matthew.