How to share Modem using Mikrotik

RouterOS Beginner Basics
1

I want to know how to configure router when i put the ethernet cable of Modem in Mikrotik Router … the Modem is Using PPOE …

Thanx

2

about NAT read here:
http://www.mikrotik.com/testdocs/ros/2.9/ip/nat.php

about PPPoE configuration here:
http://www.mikrotik.com/testdocs/ros/2.9/interface/pppoe.php

3

i would test it write now …

thanx