Nucleus PLUS的部分代码，可以看看，网上可以下载代码的分析文档。-Part code of Nucleus PLUS OS for studing, the document for it can be downloaded from net.

This the first release of PPP for Nucleus Net. This release includes support for the PAP and CHAP-MD5 authentication protocols and the internet protocol control protocol (IPCP). The following files are the generic portion of PPP (non-harwa