45
Appendix B
Popular Port Numbers
For online games, check with the game manufacturer for details on the specific ports or port ranges need to be opened.
Note: The following list contains a selection of some of the most popular port numbers. A more complete list of port numbers is available on the Internet Assigned Numbers Authority (IANA) website at:
Application | Protocol | Port Number |
|
|
|
FTP | TCP | 21 |
|
|
|
Telnet | TCP | 23 |
|
|
|
SMTP | TCP | 25 |
|
|
|
HTTP | TCP | 80 |
|
|
|
POP3 | TCP | 110 |
|
|
|
SNMP | UDP | 161 |
|
|
|
SNMP Trap | UDP | 162 |
|
|
|
H.323 | TCP | 1720 |
|
|
|
PPTP | TCP | 1723 |
|
|
|
PC Anywhere | TCP | 5631 |
|
|
|
PC Anywhere | UDP | 5632 |
|
|
|
