P-2602H(W)(L)-DxA Series User’s Guide
Appendix F Services
371
A
PPENDIX
F
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 150
Examples of Services
NAME
PROTOCOL
PORT(S)
DESCRIPTION
AH
(IPSEC_TUNNEL)
User-Defined
51
The IPSEC AH (Authentication Header)
tunneling protocol uses this service.
AIM
TCP
5190
AOL’s Internet Messenger service.
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
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 (e.g.
www.zyxel.com
)
to IP numbers.
ESP
(IPSEC_TUNNEL)
User-Defined
50
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
TCP
20
21
File Transfer Program, a program to enable
fast transfer of files, including large files that
may not be possible by e-mail.
H.323
TCP
1720
NetMeeting uses this protocol.