If I use a wired connection, does Port-forwarding and DMZ still work?

[Is not JL]

I use a wired connection for my Xbox 360, and I've also set up Port-Forwarding and put my Xbox in the DMZ of my router to make sure I get the best internet connection. Does the port-forwarding and putting into DMZ actually do anything when I use a wired connection instead of Wifi? I'm wondering this because I continuously switch out the ip for my Xbox and my 3DS for when I play online with my 3DS, and if possible I'd like to minimize the need for all the changing of settings.

[Eqwinoxe]

It should. Dont quote me. Since your directly connected to your router, so any changes to your router will affect your Xbox, as like I said, you are directly into your router. I'm not that tech savy with wires/routers/Xbox, so anything that is wrong. Tell me, I will learn.

[GermanShepherdD]

You need to always make sure to change the dmz when trying to port forward even on a lan connection. The only time you would not need to port forward/change dmz is if you are plugging directly into the modem and not the router. :3