Well Known Port Numbers - Moxa Technologies NPort 5610-8 User Manual

In this appendix, which is included for your reference, we provide a list of Well Known port numbers that may
cause network problems if you set NPort 5600 to one of these ports. Refer to RFC 1700 for Well Known port
numbers, or 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 range from 0 through 1023.
The Registered Ports range from 1024 through 49151.
The Dynamic and/or Private Ports range 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 at
http://www.iana.org/assignments/port-numbers.
TCP Socket
0
1
2
7
9
11
13
15
20
21
23
25
37
42
43
49
TCP Socket
53
79
80
119
123
213
160 – 223

Well Known Port Numbers

B.
Application Service
reserved
TCP Port Service Multiplexer
Management Utility
Echo
Discard
Active Users (systat)
Daytime
Netstat
FTP data port
FTP CONTROL port
Telnet
SMTP (Simple Mail Transfer Protocol)
Time (Time Server)
Host name server (names server)
Whois (nickname)
(Login Host Protocol) (Login)
Application Service
Domain Name Server (domain)
Finger protocol (Finger)
World Wide Web HTTP
Network news Transfer Protocol (NNTP)
Network Time Protocol
IPX
Reserved for future use
B