ZyXEL Communications MES-2110 User Manual page 222

Appendix B Common Services
Table 87 Commonly Used Services
NAME
AH
(IPSEC_TUNNEL)
AIM/New-ICQ
AUTH
BGP
BOOTP_CLIENT
BOOTP_SERVER
CU-SEEME
DNS
ESP
(IPSEC_TUNNEL)
FINGER
FTP
H.323
HTTP
HTTPS
ICMP
ICQ
IGMP
(MULTICAST)
IKE
IRC
MSN Messenger
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PROTOCOL PORT(S)
User-Defined 51
TCP 5190
TCP 113
TCP 179
UDP 68
UDP 67
TCP 7648
UDP 24032
TCP/UDP 53
User-Defined 50
TCP 79
TCP 20
TCP 21
TCP 1720
TCP 80
TCP 443
User-Defined 1
UDP 4000
User-Defined 2
UDP 500
TCP/UDP 6667
TCP 1863
DESCRIPTION
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.
Internet Control Message Protocol is
often used for diagnostic or routing
purposes.
This is a popular Internet chat
program.
Internet Group Multicast Protocol is
used when sending packets to a
specific group of hosts.
The Internet Key Exchange algorithm
is used for key distribution and
management.
This is another popular Internet chat
program.
Microsoft Networks' messenger
service uses this protocol.
MES-2110 User's Guide