ZyXEL Communications MGS3600-24F User Manual page 386

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RONT ATTER
Table B-1: Commonly Used Services
N
AME
BOOTP_CLIENT
BOOTP_SERVER
CU-SEEME
DNS
ESP
(IPSEC_TUNNEL)
FINGER
FTP
H.323
HTTP
HTTPS
ICMP
ICQ
IGMP 
(MULTICAST)
MGS3600-24F/XGS3600-26F/XGS3600-28F
P P ( )
ROTOCOL ORT S
UDP 68
UDP 67
TCP UDP 7648,
24032
TCP/UDP 53
User-Defined 50
TCP 79
TCP TCP 20, 21
TCP 1720
TCP 80
TCP 443
User-Defined 1
UDP 4000
User-Defined 2
DHCP Client.
DHCP Server.
A popular video conferencing 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.
Internet Control Message Protocol is often used for diagnostic or routing pur-
poses.
This is a popular Internet chat program.
Internet Group Multicast Protocol is used when sending packets to a specific
group of hosts.
B-2
D
ESCRIPTION
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