METHOD AND APPARATUS FOR SETTING THE VALUE OF A TYPE OF SERVICE FIELD IN THE HEADER OF THE IP DATAGRAM HAVING SOCKS DATA BY RETRIEVING A SOURCE ADDRESS AND APPLICATION ADDRESS WITHIN THE IP HEADER OF THE IP DATAGRAM

摘要

A method and system for setting the value of a type of service field in an Internet Protocol (IP) datagram in accordance with an application level protocol. The IP datagram is transmitted within a socks connection from a source application on a source device. The IP datagram includes a source IP address field in an IP header and a source port field in a Transmission Control Protocol (TCP) header. In accordance with the method of the present invention a source address of the source device is retrieved from the source IP address field of an incoming IP datagram. An application address of the source application is retrieved from the source port field of the incoming IP datagram. A type of service value has been associated with the retrieved source address and the retrieved application address. The type of service value is then determined and written to a type of service field within the IP datagram.