ZyXEL NSA325 User Guide - Page 407
Common Services
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APPENDIX C 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 126 Commonly Used Services NAME PROTOCOL PORT(S) DESCRIPTION AH User-Defined 51 (IPSEC_TUNNEL) 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 servers. BGP TCP 179 Border Gateway Protocol. BOOTP_CLIENT UDP 68 DHCP Client. BOOTP_SERVER UDP 67 DHCP Server. CU-SEEME TCP UDP 7648 24032 A popular videoconferencing solution from White Pines Software. DNS TCP/UDP 53 Domain Name Server, a service that matches web names (for example www.zyxel.com) to IP numbers. ESP User-Defined 50 (IPSEC_TUNNEL) The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol uses this service. FINGER TCP 79 Finger is a UNIX or Internet related command that can be used to find out if a user is logged on. FTP TCP 20 File Transfer Program, a program to enable fast transfer of files, including large files that may not be TCP 21 possible by e-mail. H.323 TCP 1720 NetMeeting uses this protocol. HTTP TCP 80 Hyper Text Transfer Protocol - a client/server protocol for the world wide web. HTTPS TCP 443 HTTPS is a secured http session often used in e- commerce. Media Server User's Guide 407