si tenes que utilizas esto en wireless:
WDS(Wireless Distribution System)
standard has been made available. Using
WDS operation as defined by the IEEE802.11
WDS it is possible to wirelessly connect A
ccess Points, and in doing so extend a wired
infrastructure to locations where cabling is
not possible or ine
fficient to implement
fijate en la pagina 35 del manual:
http://fs.airlive.com/manual/AirLive_WN-220R_Manual.pdf
si tenes un cable hasta ahi entonces podes ponerlo en la boca LAN del airlive y desactivar el dhcp del mismo y que trabaje como un switch inalambrico con el dhcp del router principal