# sysctl net.inet.ip.forwarding=1
-set a NAT, if you use PF the sample chapter of Book of PF explain how to:
-
-http://www.tinker.tv/download/pf_ch4.pdf
+set a NAT, if you use PF [the sample](http://www.nostarch.com/download/PF04.pdf) of [Book of PF](http://nostarch.com/pf2.htm) explains how to.
with a dhclient deamon and the game is done.