基于VC++的RAS拨号连接技术及其应用

RAS Dialing Connection Technique Based on VC++ And Its Application

随着网络的迅速发展,各组织机构对网络的需求在不断扩大。虽然通过Internet能很好实现远程通讯,但在实际工作中,出于成本的考虑,大多数中小型企业多采用传统的直接拨号方式来实现远程数据的传输。本文介绍了远程访问服务(RAS)技术及其连接方式,并采用其中拨号网络(DUN)连接的方式通过调制解调器和电话线直接拨号以实现远程数据传输。本文详细叙述了在Windows 2003 Server及VC++平台下,利用RAS API实现RAS拨号连接的方法及过程,最后给出了该技术在某工业消防火警远程监控系统中的实际应用。

With the rapid development of net, the needs of net are increasing more and more in organizations. Although the remote communication can be implemented by internet, most of the enterprises in medium or small scale often choose conventional direct dialing mode to realize remote communication for cost. This paper introduces the RAS technique and its linking modes, and chooses the DUN mode to implement the remote communication with modems and telephone lines. It also illustrates the realization of RAS dialing connection with RAS API on the platform of Windows 2003 Server and VC＋＋. Last, this technique is applied in an industrial fire protection remote-control system.