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A p p e n d i x E
Appendix E
Common Services
The following table lists some commonly-used services and their associated protocols and port
numbers. For a comprehensive list of port numbers, ICMP type/code numbers and services, visit
the IANA (Internet Assigned Number Authority) web site.
•
Name : This is a short, descriptive name for the service. You can use this one or create a
different one, if you like.
•
Protocol : This is the type of IP protocol used by the service. If this is TCP/UDP , then the
service uses the same port number with TCP and UDP. If this is USER-DEFINED , the Port(s )
is the IP protocol number, not the port number.
•
Port(s) : This value depends on the Protocol . Please refer to RFC 1700 for further information
about port numbers.
•
If the Protocol is TCP , UDP , or TCP/UDP , this is the IP port number.
•
If the Protocol is USER , this is the IP protocol number.
•
Description : This is a brief explanation of the applications that use this service or the situations
in which this service is used.
Table 41 Commonly Used Services
NAME PROTOCOL PORT(S) DESCRIPTION
AH
(IPSEC_TUNNEL) User-Defined 51 The IPSEC AH (Authentication Header)
tunneling protocol uses this service.
AIM/New-ICQ TCP 5190 AOL’s Internet Messenger service. It is
also used as a listening port by ICQ.
AUTH TCP 113 Authentication protocol used by some