N-4100 used as a secondary router

I have a password protected D link connected to my xplornet modem.. Is it possible to connect via ethernet cable, from a lan port on the d-link router, to the wan port on my zyxel N-4100 router.. Which in turn is in turn set to non-authentication, but allows numerous connections to the internet, but yet allows me to control the speeds to the users..
If possible what changes would In have to make? Please reply also to [email protected] Thanks

Consumer Product Help Center