The study of Skype video image transmission security

Today VoIP (Voice over IP) and video conference are very common in internet. But the other side, network security is more complicated than before, our network infrastructure set firewalls become a basic network security equipments. Not only enterprises will set up firewall system, most of SOHOs and individual users also set at least one firewall in their network. In order to allow video conference environment normally operates in a firewall environment, IETF and the video conference industry have already propose a lot of solution.[1] In this article, we use Skype video video call to measure and compare the image transmission in two difference firewall environment. We will use some common frameworks to measure and analysis video conference normally working under the DDoS attack.

1. Introduction

While Video Conference can provide many value-added services, but they also bring lots of network management and security issues, such as quality of services (QoS), firewall or NAT throughput. [2] Information confidentiality, integrity and availability management become the main impact of Video Conference popularize factors.