Measurement and Analysis of P2P Traffic in Campus Networks Under Firewall 


Vol. 30,  No. 11, pp. 750-757, Nov.  2005


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  Abstract

This paper reports on the study of P2P traffic behaviors in a high-speed campus network under a simple firewall which drops packets with default port numbers for the well-known P2P applications. Among several ways of detecting P2P traffic, the easiest method is to filter out packets with the default port number of each P2P application. After deploying the port-based firewall against P2P-traffic, it is expected that the amount of P2P traffic will be decreased. However, during the eight-month measurement period, three new commercial P2P applications have been identified and their traffic usages have reached up to 30/5.6% of the total outbound/inbound traffic volumes at the end of the measurement period. In addition, the most famous P2P application, eDonkey, has adapted and has escaped detection through port hopping. The measurement result shows that the amount of eDonkey traffic is around 6.7/4.0% of the total outbound/inbound traffic volume. From the measurement results, it is observed that the port-based firewall is not effective to limit the usage of P2P applications and that the P2P traffic is steadily growing due to not only the evolution of existing P2P applications such as port hopping but also appearances of new P2P applications.

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  Cite this article

[IEEE Style]

Y. Lees, "Measurement and Analysis of P2P Traffic in Campus Networks Under Firewall," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 11, pp. 750-757, 2005. DOI: .

[ACM Style]

Youngseok Lees. 2005. Measurement and Analysis of P2P Traffic in Campus Networks Under Firewall. The Journal of Korean Institute of Communications and Information Sciences, 30, 11, (2005), 750-757. DOI: .

[KICS Style]

Youngseok Lees, "Measurement and Analysis of P2P Traffic in Campus Networks Under Firewall," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 11, pp. 750-757, 11. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880