provide internet to clients

hi to all.
i have an ip from isp with subnet /30. and primary and secondary dns.
my network: isp… ether1(mt).ether2(mt)…switch…pc clients
clients ip :10.10.0.1..10.10.0.50 subnet 255.255.255.0 gateway 10.10.0.1.
i want my client to surf internet and to play network games.
thank for all.

Look here,
http://www.mikrotik.com/testdocs/ros/2.9/guide/basic_content.php#12.1.8