-you can put aztek modem with real ip and all dhcp relay off -then configure dlink as AP , turning off dhcp ,pnp,dns relay and obtaigning ip as dhcp. -then configure real ip on all devices manually . -in this case you are using WAN connection with modem . ------- in second case you can use LAN to LAN connection with modem and dlink and using modem dhcp by putting dlink in ap mode turining of dhcp, pnp in dlink. rememeber this configuration is with DLINK 500 and Aztek single Lan port DSL modem.Dlink has ethernet port to connect ISP. better to use dsl wireless modem this configuration was done to use real ip in the netowrk ,