ok, so I've got an 1841 router with the 15.1 Advanced Security IOS loaded and SDM latest version (4.5?). I am trying to setup a dynamic DNS auto updater on it and it offers several resources with which to do this, but not the one I need. I am trying ...

This may sound like a wierd question, but a hub, as I understand it, is basically a glorified repeater, right? If you were setting up a trunk between 2 switches (say for example both are 2950XL's), can you not put a hub between the 2 and still have i...