ZyXEL Communications MWR102 manual Commonly Used Services, 141

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	User-Defined	51	The IPSEC AH (Authentication Header)
(IPSEC_TUNNEL)			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

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