ZyXEL P-335U User Guide - Page 309
Services
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P-334U/P-335U User's Guide APPENDIX G Services The following table lists some commonly-used services and their associated protocols and port numbers. • 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. • 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 134 Examples of Services NAME AH (IPSEC_TUNNEL) AIM AUTH PROTOCOL User-Defined TCP TCP BGP BOOTP_CLIENT BOOTP_SERVER CU-SEEME DNS TCP UDP UDP TCP/UDP TCP/UDP TCP/UDP ESP (IPSEC_TUNNEL) FINGER User-Defined TCP FTP H.323 TCP TCP TCP PORT(S) DESCRIPTION 51 5190 113 179 68 67 7648 24032 53 50 79 20 21 1720 The IPSEC AH (Authentication Header) tunneling protocol uses this service. AOL's Internet Messenger service. Authentication protocol used by some servers. Border Gateway Protocol. DHCP Client. DHCP Server. A popular videoconferencing solution from White Pines Software. Domain Name Server, a service that matches web names (e.g. www.zyxel.com) to IP numbers. The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol uses this service. Finger is a UNIX or Internet related command that can be used to find out if a user is logged on. File Transfer Program, a program to enable fast transfer of files, including large files that may not be possible by e-mail. NetMeeting uses this protocol. Appendix G Services 309