Patent ID: 8175092
Filing Date: 2012-05-08
Classification: H04L

Abstract:
1. A method for executing address resolution operation, the method comprising: (a) providing a network domain, comprising at least two interconnected computers, a router device, a local area network (LAN), and a wide area network (WAN), the at least two computers having respective network addresses, the router device having a network address translation unit, wherein the network address translation unit further having at least an address field datum and the router device comprises a connector for WAN; (b) receiving an address resolution packet, which includes a sender IP address and a target IP address, by the router device, wherein the address resolution packet is provided by one of the at least two interconnected computers to the router device through the LAN or the WAN; (c) determining whether the sender IP address is within the network domain; if not, the method proceeds to an end; (d) when the sender IP address is within the network domain, comparing the sender IP address with the network addresses; (e) when the sender IP address is compared as corresponding to the network addresses, updating the at least one address field datum by the router device; and (f) when the sender IP address is compared as not corresponding to the network addresses, storing the sender IP address by the router devices, wherein, after step (d), the method further comprises: (g) comparing the target IP address with the at least an address field datum;