ZyXEL Communications Corporation NBG416N Manuel D’Utilisation
NBG-416N User’s Guide
205
A
P P E N D I X
E
Services
The following table lists some commonly-used services and their associated
protocols and port numbers.
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.
• 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 69 Examples of Services
NAME
PROTOCOL
PORT(S)
DESCRIPTION
AH
(IPSEC_TUNNEL)
(IPSEC_TUNNEL)
User-Defined
51
The IPSEC AH (Authentication Header)
tunneling protocol uses this service.
tunneling protocol uses this service.
AIM
TCP
5190
AOL’s Internet Messenger service.
AUTH
TCP
113
Authentication protocol used by some
servers.
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.
from White Pines Software.
DNS
TCP/UDP
53
Domain Name Server, a service that
matches web names (e.g.
matches web names (e.g.
www.zyxel.com
) to IP numbers.
ESP
(IPSEC_TUNNEL)
(IPSEC_TUNNEL)
User-Defined
50
The IPSEC ESP (Encapsulation
Security Protocol) tunneling protocol
uses this service.
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.
command that can be used to find out
if a user is logged on.