Roku: No Fixed IP For You!

First problem with the Roku in Argentina..
Well, actually, it is a problem that would eventually happen anywhere.
The Roku box doesn't support fixed IP addresses... For the love of Jeebus, they have to be fucking kidding...
Since I don't use DHCP on my LAN, therefore I'm fucked.
Tried to make a reservation, using the Roku's MAC address, but, of course, did not work.
Will have to switch to a DHCP enabled LAN for this... At least, for the few minutes it will take me to test what actually works, regarding the streaming, here in Argentina.