In the iSeries world, IBM has opened its arms and adopted TCP/IP as a
brother to APPN/APPC. Starting with OS/400 V3R1, TCP/IP has become an integral
part of the operating system and has been applied as follows:
iSeries TCP/IP enables multivendor connectivity. The standard TCP/IP
utilities allow terminal connections (Telnet), file transfer (File Transfer
Protocol, or FTP), and printer sharing (LPR/LPD) with a variety of TCP/IP
hosts, clients, and servers.
iSeries TCP/IP works with AnyNet to reduce network protocol requirements.
AnyNet lets conventional APPC traffic travel over a TCP/IP network. For
example, you can run Client Access (CA/400) over TCP/IP using AnyNet.
iSeries TCP/IP offers Internet capability. The iSeries TCP/IP implementation
provides a foundation for Internet-related tools and services, such as
World Wide Web and Gopher serving.