I have followed this guide http://help.unotelly.com/support/solutions/articles/165897-
Something I noticed is that on my router, you can either select your IP (external) or you can chose the interface. We all have non-static IP's in SA as far as I know, so opted for the interface option.
Shouldnt be an issue, right?
You can use any bogus private IP preferably your router's internal IP or even localhost 127.0.0.1 that should work