The main point of my replying is to say that help with routers/forwarding ports can be found at this site
, most routers are listed there. There should also be a manual that you kept in a safe place, or a contact number for the manufacturer's customer support. They're probably more qualified to help you seeing as your router's functions/control panel has nothing to do with mIRC!
As for the sub-discussion in this thread, it doesn't matter WHY people find that acronym offensive, the point is, they do. You don't need to use it, it's not a foundation for your sentence, so if someone does ask you not to use it then there's no problem with you obliging. It's much more hassle to make 3/4 unnecessary posts discussing it. If anything it only leads to the thread getting locked - which is no skin off our noses, but might be more of an issue for you if you want any help. End of subject