IP级拓扑测量可用通信端口分析

Analyzing on Available Ports of IP Level Topology Measurement

目前已有的因特网IP级拓扑测量方式因为受到各种网络设施的影响,削弱了预设方式的测量效果,从一定程度上限制了测量空间.本文提出了一种针对探测端口号的选择策略.主要是为了解决原有常用测量用端口号被互联网中恶意程序利用,以及被网关与防火墙等设备频繁过滤的现实存在的情况.该策略的优势是将测量中端口分为可利用端口与不可利用端口两类,且尽可能大的覆盖了端口号范围.

The current internet IP level topology measurement is affected by the degree of various network infrastructure,so that the measurement results obtained through the original method is weakened,which limits the measurement space.A kind of port selection strategy was put forward in this paper to prevent some port numbers being made use of by malicious code applications in network and being filtered by devices such as firewall and gateway.The advantage of this strategy is to classify the ports into available ports and unavailable ports,and cover port number as many as possible.