Well when i access the router settings(10.0.0.138)
There is HOME menu (shows Model of firmware,speed of connection etc....)
LAN menu (LAN config,DHCP mode,DCHP server, and DHCP relay)
WAN menu (DSL,ATM VC,PPP,EOA,IPOA)
Bridging menu(Bridging,LAN config,DSL,ATM VC,EOA)
Routing menu shows only routing table
Services (NAT,RIP,IP Filter,DNS,Blocked Protocols,Firewall)
and Admin menu

So I am a LITTLE confused what to set up or how to rid of private IP and set real IP if possible.