Appendix F Services

 

 

 

 

 

 

 

Table 116 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

7648

A popular videoconferencing solution from

 

 

 

TCP/UDP

24032

White Pines Software.

 

 

 

 

 

 

 

 

 

 

 

 

DNS

TCP/UDP

53

Domain Name Server, a service that

 

 

 

 

 

matches web names (for instance

 

 

 

 

 

www.zyxel.com) to IP numbers.

 

 

 

 

 

 

 

 

ESP

User-Defined

50

The IPSEC ESP (Encapsulation Security

 

 

(IPSEC_TUNNEL)

 

 

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

20

File Transfer Protocol, a program to enable

 

 

 

TCP

21

fast transfer of files, including large files

 

 

 

that may not be possible by e-mail.

 

 

 

 

 

 

 

 

 

 

 

 

 

H.323

TCP

1720

NetMeeting uses this protocol.

 

 

 

 

 

 

 

 

HTTP

TCP

80

Hyper Text Transfer Protocol - a client/

 

 

 

 

 

server protocol for the world wide web.

 

 

 

 

 

 

 

 

HTTPS

TCP

443

HTTPS is a secured http session often used

 

 

 

 

 

in e-commerce.

 

 

 

 

 

 

 

 

ICMP

User-Defined

1

Internet Control Message Protocol is often

 

 

 

 

 

used for diagnostic purposes.

 

 

 

 

 

 

 

 

ICQ

UDP

4000

This is a popular Internet chat program.

 

 

 

 

 

 

 

 

IGMP (MULTICAST)

User-Defined

2

Internet Group Multicast Protocol is used

 

 

 

 

 

when sending packets to a specific group

 

 

 

 

 

of hosts.

 

 

 

 

 

 

 

 

IKE

UDP

500

The Internet Key Exchange algorithm is

 

 

 

 

 

used for key distribution and management.

 

 

 

 

 

 

 

 

IMAP4

TCP

143

The Internet Message Access Protocol is

 

 

 

 

 

used for e-mail.

 

 

 

 

 

 

 

 

IMAP4S

TCP

993

This is a more secure version of IMAP4 that

 

 

 

 

 

runs over SSL.

 

 

 

 

 

 

 

 

IRC

TCP/UDP

6667

This is another popular Internet chat

 

 

 

 

 

program.

 

 

 

 

 

 

 

 

MSN Messenger

TCP

1863

Microsoft Networks’ messenger service

 

 

 

 

 

uses this protocol.

 

 

 

 

 

 

 

 

NetBIOS

TCP/UDP

137

The Network Basic Input/Output System is

 

 

 

TCP/UDP

138

used for communication between

 

 

 

computers in a LAN.

 

 

 

 

 

 

 

 

TCP/UDP

139

 

 

 

 

TCP/UDP

445

 

 

 

 

 

 

 

 

 

287

AMG1312-T Series User’s Guide