server directly in an effort to deliver the mail. The SMTP client will actually retain
and retry transmission until the mail item is successfully delivered to the intended
destination or recipient.
Post Office Protocol (POP) Mail Server
The POP server is the AS/400 implementation of the Post OfficeProtocol (POP)
Version 3 mail interface. This server is a store-and-forward mail system that
provides electronic mailboxes on AS/400 from which clients can retrieve mail. POP
allows users to exchange multimedia mail.
The POP application allows AS/400 systems to act as POPservers for any clients
that support the POP mail interface, including clients running on Windows, OS/2,
AIX and Macintosh.
TELNET Protocol (TELNET)
AS/400 TCP/IP TELNET provides client and server support that allows remote
logon to hosts within an internet.
Simple Network Management Protocol (SNMP)
AS/400 TCP/IP SNMP provides a means for managing an internet environment.
SNMP allows network management by elements, such as routers and hosts.
Network elements act as servers and contain management agents that perform the
management functions requested. Network management stations act as clients;
they run the management applications that monitor and control the network. SNMP
provides a means of communicating between these elements and stations to send
and receive information about network resources.
AS/400 can be an agent in an SNMP network. That is, theAS/400 system gathers
information about the network and performs the management functions that are
requested by some remote SNMP manager.At this time, AS/400 cannot be an
SNMP manager in a TCP/IP network.
Simple Network Management Protocol (SNMP) is used predominately in TCP/IP
networks. However, OS/400AnyNet support allows OS/400 SNMP support to be
used in a SNA network.
For additional information about SNMP,see the

Simple Network Management

Protocol (SNMP) Support

, SC41-5412-00 book.
5250/Hypertext Markup Language (HTML) Workstation Gateway
The 5250/Hypertext Markup Language (HTML) Workstation Gateway (WSG) server
is an application that automatically transforms AS/400 5250 applications to
Hypertext Markup Language (HTML). This allows users to run AS/400 applications
from any PC that has a WEB browser, and allows for TCP/IPnetwork connectivity
to the AS/400 host.
Domain Name System Server (DNS)
The Domain Name System (DNS) server is used by applications to translate
domain names of hosts to IP addresses. The Domain Name System is the network
naming service of intranets and the Internet.
14 OS/400 TCP/IPConfiguration and Reference V4R4