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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 116 Examples of Services
NAME
AH
(IPSEC_TUNNEL)
AIM
AUTH
BGP
BOOTP_CLIENT
BOOTP_SERVER
CU-SEEME
DNS
ESP
(IPSEC_TUNNEL)
FINGER
FTP
H.323
HTTP
Appendix E Services
PROTOCOL
PORT(S)
User-Defined
51
TCP
5190
TCP
113
TCP
179
UDP
68
UDP
67
TCP/UDP
7648
TCP/UDP
24032
TCP/UDP
53
User-Defined
50
TCP
79
TCP
20
TCP
21
TCP
1720
TCP
80
P-2602R/RL-DxA Series User's Guide
Appendix E
Services
DESCRIPTION
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.
Hyper Text Transfer Protocol - a client/
server protocol for the world wide web.
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