METHOD, APPARATUS AND SYSTEM FOR FORWARDING PACKET

摘要

Disclosed are a method, an apparatus and a system for forwarding a packet. A network address translation device receives an Internet Protocol (IP) packet from a user terminal; network address translation is performed on the IP packet; information for identifying a user is inserted in the IP packet; the IP packet in which the information for identifying a user is inserted is sent, so that a network device receiving the IP packet distinguishes the user terminal according to the information for identifying a user. By use of the technical solutions provided in the embodiments of the present invention, solved may be a problem in the prior art that a user is distinguished and traced to the source by querying a log file so the network complexity and the load of a log server are high.