文档介绍：
端口随机化算法在 A+P 过渡方案中的应用
与实现#
匡寅佳1,黄小红1,柯宏力2**
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(1. 北京邮电大学网络技术研究院,北京 100876;
2. 北京邮电大学网络与教育技术服务中心,北京 100876)
摘要:随着互联网技术的快速发展和网络规模的急速增长,IPv4 地址空间即将耗尽题,IPv6
将会是未来网络必然的趋势。但是不可能立刻从 IPv4 迁移到 IPv6,IPv4 的网络和
业务将会在相当长的一段时间里与 IPv6 网络并存,很多 IPv6 业务将要在 IPv4 网络中进行
传输,因此过渡机制十分重要。A+P 方案是解决 IPv6 融合中共用 IPv4 地址问题的一种实施
方案,它提供了一种可协商可控制划分粒度的端口分配机制。本篇论文分析,实现并验证了
一种法国电信已申请专利的新的随机端口生成方法,实验结果验证了这种端口随机生成方法
的有效性和实现的正确性。在将此算法引入到 A+P 方案后,证明了此种端口分配方式对于
网络应用建立 UPnP 连接时有更高的成功率,提高了 A+P 方案系统的管理性、使用效率以
及面对网络攻击时的防御能力。
关键词:IPv6 过渡技术;端口随机化;DNS 缓存投毒;A+P 方案
中图分类号:TP393
Application and Implementation of port randomization
algorithm in AplusP transition program
KUANG Yinjia1, HUANG Xiaohong1, KE Hongli2
(1. Institute work Technology, Beijing University of Posts and munications,
Beijing, 100876;
2. Network and Education Technology Service Center, Beijing University of Posts and
munications, Beijing, 100876)
Abstract: With the rapid development of technology work size, IPv4 address space
will be exhausted soon. Hence, IPv6 will be the inevitable trend of the work. But
can not immediately migrate from IPv4 to IPv6, works and services on IPv4 will
coexist with works for a long period of time, and a lot of IPv6 services will be transmitted
on an work, so the transition mechanism is very important. A+P transition mechnism is to
solve the integration issue of IPv6 and IPv4 address, and it provides a port division mechnism with
negotiable and contollable granularity. This paper analysis, implement and verify a new method to
generate a random port which the France has applied for patent of , this port
experimental results verify the effectiveness of random generation method and implementation
correctness. After introduced this algorithm to the A+P program, proved such a port allocation for
working applications to establish a connection with a higher ess rate, improve the
system of A+P program manageability, efficiency, and the defense capability fa