P2P Flow Control Based on Netfilter/Iptables Kernel Extension

In order to alleviate the network bandwidth traffic impact caused by P2P flow for the rational use of network resources,better protect the network QoS by accurate identification and measurement of P2P flow traffic.With the development of P2P application,the traditional method that detects the P2P flow by the according port can't meet the requirement of P2P management.Describe the advantages and disadvantages of P2P applications,analysis of the Netfilter framework and Iptable expansion technology,as well as the characteristics of P2P protocols.Describe how to use Netfilter / Iptables framework for kernel extension to implement P2P traffic identification and management,and conduct a brief analysis and summary.From the results of analysis,P2P traffic identification and management is improved obviously.