Appendix 3. Well-Known Port Numbers - Sena PS110W User Manual

Appendix 3. Well-known port numbers

Port numbers are divided into three ranges: Well Known Ports, Registered Ports, and Dynamic and/or
Private Ports. Well Known Ports are those from 0 through 1023. Registered Ports are those from 1024
through 49151. Dynamic and/or Private Ports are those from 49152 through 65535.
Well Known Ports are assigned by IANA, and on most systems, can only be used by system
processes or by programs executed by privileged users. Table A-3 shows some of the well-known port
numbers. For more details, please visit the IANA website:
http://www.iana.org/assignments/port-numbers
Port number
21
22
23
25
37
39
49
53
67
68
69
70
79
80
110
119
161/162
443
Table A-3 Well-known port numbers
Protocol
FTP (File Transfer Protocol)
SSH (Secure Shell)
Telnet
SMTP (Simple Mail Transfer Protocol)
Time
RLP (Resource Location Protocol)
TACACS, TACACS+
DNS
BOOTP server
BOOTP client
TFTP
Gopher
Finger
HTTP
POP3
NNTP (Network News Transfer Protocol)
SNMP
HTTPS
97
TCP/UDP
TCP
TCP
TCP
TCP
TCP, UDP
UDP
UDP
UDP
UDP
UDP
UDP
TCP
TCP
TCP
TCP
TCP
UDP
TCP
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