From the Publisher
Transmission Control Protocol/Internet Protocol (TCP/IP) is fast becoming a major protocol in the AS/400 world and certainly the protocol of choice in mixed-vendor environments. TCP/IP is also the protocol for the Internet, intranets, and extranets. But why is TCP/IP becoming so popular? It is not the best protocol for an all-AS/400 network and is often less efficient than specific gateways between protocols. The answer lies in TCPAP's ubiquity and predominance in the networked world. Although Advanced Peer-to-Peer Networking (APPN) is still the best protocol for linking AS/400s in a network, TCP/IP is more familiar to many networking professionals, is the basis for the Internet (the most popular computer network), and is available on many more systems than APPN This book provides background for AS/400 professionals to understand the capabilities of TCP/IP, its strength and weaknesses, and how to configure and administer the TCP/IP protocol stack on the AS/400. The book consists of two parts - the theory and services of TCP/IP in Chapters 1 through 3 and its configuration and implementation on the AS/400 in Chapters 4 through 10. Chapter 1 provides background on networking and some TCP/IP fundamentals. Chapter 2 expands the discussion to the standard services the TCP/IP protocol suite provides, including virtual terminal access, file transfers, and email. Chapter 3 discusses TCP/IP addressing and routing, core components in a packet-switched network. The remaining chapters discuss AS/400 TCP/IP configuration and implementation directly. Chapter 4 explains the configuration of TCP/IP on the AS/400 and provides the information you need to establish TCP/IP connectivity on your system. Chapter 5 provides details about the implementation of TCP/IP services from an AS/400 perspective. Chapter 6 discusses client configuration and includes examples of configuring TCP/IP for Win95, Client Access/400, Attachmate's Rally! product, and WRQ's Reflection for IBM software. Chapter 7 covers TCP/IP exit points, including configuration of anonymous FTP Chapter 8 discusses TCP/IP management on the AS/400. Chapter 9 cover! s the implementation of the World Wide Web server on the AS/400, including the use of IBM's Net.Data database access product, Common Gateway Interface programming, and the Workstation Gateway. And Chapter 10 explains the configuration of advanced features that became available in OS/400 V4R1 and V4R2. In addition to these ten chapters are three appendices. Appendix A discusses the history of TCP/IP. Appendix B explains how to configure the SLIP protocol. And Appendix C summarizes the major TCP/IP Requests for Comments.
About the Author
Michael Ryan is an information systems professional with more than 17 years of experience with IBM systems, concentrating on AS/400 and System/3X systems. He is a consultant with Ryan Technology Resources, a company based on consulting, publications, and training. Michael has developed and taught college-level courses in RPG programming and AS/400 operations and has conducted seminars covering a wide range of AS/400, data communications, and Internet topics.