Technology and Application on Same IP Network Address Code Translation Between Inside and Outside Network

The paper introduces technology of network address translation(NAT) between inside and outside network,explores the characters of isolation inside and outside network through NAT of Cisco PIX(Private Internet eXchange).The new concept of same IP network address code translation(SNAT) is presented.SNAT integration with route strategy of inside network,more advantages and application ranges are afforded than the demilitarized zone(DMZ) method on Cisco PIX.