Appendix D Common Services - ZyXEL Communications NBG6515 User Manual

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.
• : This is a short, descriptive name for the service. You can use this one or create a different one,
Na m e
if you like.
• : This is the type of IP protocol used by the service. If this is
Pro to c o l
same port number with TCP and UDP. If this is
the port number.
• : This value depends on the
Po rt(s)
numbers.
• If the is
Pro to c o l T C P
• If the is
Pro to c o l USER
• : This is a brief explanation of the applications that use this service or the situations in which
De sc riptio n
this service is used.
Table 93 Commonly Used Services
NAME PRO T O C O L
AH (IPSEC_TUNNEL) User-Defined
AIM/New-ICQ TCP
AUTH TCP
BGP TCP
BOOTP_CLIENT UDP
BOOTP_SERVER UDP
CU-SEEME TCP
UDP
DNS TCP/UDP
ESP (IPSEC_TUNNEL) User-Defined
FINGER TCP
FTP TCP
TCP
H.323 TCP
HTTP TCP
HTTPS TCP
C o m m o n Se rvic e s
USER- DEFINED
. Please refer to RFC 1700 for further information about port
Pro to c o l
, , or , this is the IP port number.
UDP T C P/ UDP
, this is the IP protocol number.
PO RT (S)
51
5190
113
179
68
67
7648
24032
53
50
79
20
21
1720
80
443
NBG6515 User's Guide
216
A
PPEN DIX
, then the service uses the
T C P/ UDP
, the ) is the IP protocol number, not
Po rt(s
DESC RIPT IO N
The IPSEC AH (Authentication Header) tunneling
protocol uses this service.
AOL's Internet Messenger service. It is also used as a
listening port by ICQ.
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 (for example 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.
HTTPS is a secured http session often used in e-
commerce.
D