use rax45 as a client modem?

> use rax45 as a client modem?

   It's a router, not any kind of modem.

> Can i use the Rax45 router as a client by hard wiring it to my current
> router to extend internet to an out building?

   I don't know what "as a client" means to you, but what you seem to
want is to configure the RAX45 as a wireless access point.

   Visit http://netgear.com/support , put in your model number, and look
for Documentation.  Get the User Manual (at least).  Read.  Look for
"Set up the router as a WiFi access point".