
Appendix E Services
FSG1100HN User’s Guide
154
E
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.
Examples of Services
(IPSEC_TUNNEL)
The IPSEC AH (Authentication Header)
tunneling protocol uses this service.
AOL’s Internet Messenger service.
Authentication protocol used by some
servers.
TCP/UDP
24032
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.
(IPSEC_TUNNEL)
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.
Comentarios a estos manuales