Installing and Administering LAN/9000 Software

Chapter 6 131
Network Addressing
Network Addresses and Node Names
port address Also referred to as TCP port number,
UDP port number, or simply port.
A port address is an address within a
host that is used to differentiate
between multiple communication
endpoints with the same internet
address and protocol. A port address is
associated with a particular service.
Well known port numbers are defined
by RFC 923, “Assigned Numbers.”
For example, if your local address is
listed as 192.6.23.3.1023, then .1023 is
the port address.
/etc/services. Service requests.
Displayed by
netstat -an.
socket address A socket address is declared in
processes defined by the interprocess
communication software. Refer to
Using Internet Services for more
information on interprocess
communication. Refer to the
sockaddr struct in the BSD Sockets
Interface Programmer's Guide for
examples.
Socket address
variables.
Interprocess
communication.
Table 6-3 Network Address Types, Descriptions, and Examples
Address Type Description Recorded In Used By