Well-Known Port Numbers - Moxa Technologies NPort S8455I User Manual

This appendix is for your reference about the Well Known port numbers that may cause network problem if you
set the NPort into the same port. Refer to RFC 1700 for Well Known port numbers of refer to the following
introduction from the IANA.
The port numbers are divided into three ranges: the Well-known Ports, the Registered Ports, and the Dynamic
and/or Private Ports.
The Well-known Ports are those from 0 through 1023.
The Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535.
The Well-known Ports are assigned by the IANA, and on most systems, can only be used by system processes
or by programs executed by privileged users. The following table shows famous port numbers among the
well-known port numbers. For more details, please visit the IANA website:
http://www.iana.org/assignments/port-numbers
UDP Socket
0
2
7
9
11
13
35
39
42
43
49
53
69
70
79
80
107
111
119
123
161
162
213

Well-Known Port Numbers

B.
Application Service
reserved
Management Utility
Echo
Discard
Active Users (systat)
Daytime
Any private printer server
Resource Location Protocol
Host name server (names server)
Whois (nickname)
(Login Host Protocol) (Login)
Domain Name Server (domain)
Trivial Transfer Protocol (TETP)
Gopler Protocol
Finger Protocol
World Wide Web HTTP
Remote Telnet Service
Sun Remote Procedure Call (Sunrpc)
Network News Transfer Protocol (NNTP)
Network Time Protocol (nnp)
SNMP (Simple Network Mail Protocol)
SNMP Traps
IPX (Used for IP Tunneling)
B