基于PIM-SM协议IP组播安全技术

摘要

With the rapid development of the network technology, more bandwidth is required. Multicast transmission offers efficient network resource consumption. Multicast security is a hot issue. Multicast security problem hinders the development of multicast technology. This paper discusses the principles of multicast protocol PIM-SM and makes a detailed description of a method to prevent vicious multicast source attacking. The method can improve the reliability of multicast system.%伴随着互联网的高速发展， Internet 上涌现了许多需要高带宽支持的应用。组播技术能有效的利用网络带宽资源。组播的安全性一直是一个热点问题，也是阻碍组播发展的一个主要问题。本文针对虚假组播源产生垃圾消息恶性攻击提出了一个基于 PIM-SM 组播协议的预防方案，实验结果表明，该方案能提高组播系统的可靠性。