Patent ID: 6618398
Filing Date: 2003-09-09
Classification: H04B,H04L,H04W

Abstract:
A method for address resolution in a wireless system, with an originating interface terminal and a destination interface terminal, said method comprising:replacing at said originating interface terminal a source address within an Address Resolution Protocol (ARP) request packet issued from a source device with an address of said origination air interface terminal to Winch said packet is issued wherein said origination air interface terminal operates as a gateway for at least one connected source device, including said source device having said source address different from the address of said origination air interface terminal, and wherein said replacing step generates a modified ARP request packet and includes (i) replacing an Ethernet MAC address of said source device with a MAC address of said originating air interface terminal in an ARP Protocol Data Unit (PDU) and (ii) replacing said Ethernet MAC address of said source device with the MAC address of said originating air interface terminal in a source field of an Internet Protocol (IP) datagram of said source device; transmitting said modified ARP request packet to a destination air interface terminal via an air interface, said destination air interface terminal operating as a gateway for at least one destination device having a destination address different from an address of said destination air interface terminal; responsive to a receipt of a modified ARP reply packet transmitted via said air interface from said destination air interface terminal; substituting an address of said origination air interface terminal within said reply packet with that of said source device; and forwarding said ARP reply packet to said source device using the source address.