Patent ID: 7561585
Filing Date: 2009-07-14
Classification: H04L

Abstract:
1. A network address translation accelerator, comprising: a first processor, used to process the network address translation, wherein information of a header address and port of a packet is compared with a network address translation table, so as to obtain a corresponding address and port information, and the information of the header address and port of the packet is replaced by the corresponding address and port information; a second processor, used to process a plurality of operations rather than the network address translation; a plurality of ports, used to connect the network address translation accelerator to a LAN and a WAN, so as to transmit or receive the data that is transmitted between the network address translation accelerator and the WAN and the LAN, wherein a plurality of entries inside the network address translation table are divided into a plurality of means for comparing information of the header address and port of the packet with the network address translation table; wherein the plurality of means for comparing information of the header address and port of the packet with the network address translation table, do not compare a port value of the packet with the network address translation table when the packet is a fragment packet.