Moxa Technologies NPort 5110 Series User Manual page 89

1-port rs-232 serial device server
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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 5110 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
Well Known Port Numbers
Appendix B
Application Service
Reserved
TCP Port Service Multiplexor
Management Utility
Echo
Discard
Active Users (systat)
Daytime
Netstat
FTP data port
FTP CONTROL port
Telnet
SMTP (Simple Mail Transfer Protocol)
Time (Time Server)
B
B

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