Prestige 334W User’s Guide

eMule/eDonkey

These programs use advanced file sharing applications relying on central servers to search for files. They use default port 4662.

WWW

The World Wide Web is an Internet system to distribute graphical, hyper-linked information, based on Hyper Text Transfer Protocol (HTTP) - a client/server protocol for the World Wide Web. The Web is not synonymous with the Internet; rather, it is just one service on the Internet. Other services on the Internet include Internet Relay Chat and Newsgroups. The Web is accessed through use of a browser.

18.1.7 Services

The commonly used services and port numbers are shown in the following table. Please refer to RFC 1700 for further information about port numbers. Next to the name of the service, two fields appear in brackets. The first field indicates the IP protocol type (TCP, UDP, or ICMP). The second field indicates the IP port number that defines the service. (Note that there may be more than one IP protocol type. For example, look at the DNS service. (UDP/TCP:53) means UDP port 53 and TCP port 53.

 

Table 18-3 Commonly Used Services

 

 

 

SERVICE

 

DESCRIPTION

 

 

 

AIM/New-ICQ(TCP:5190)

 

AOL’s Internet Messenger service, used as a listening port by ICQ.

 

 

 

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 White Pines Software.

24032)

 

 

 

 

 

DNS(UDP/TCP:53)

 

Domain Name Server, a service that matches web names (e.g.

 

 

www.zyxel.com) to IP numbers.

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:20.21)

 

File Transfer Program, a program to enable fast transfer of files,

 

 

including large files that may not be possible by e-mail.

 

 

 

H.323(TCP:1720)

 

NetMeeting uses this protocol.

 

 

 

18-6

Media Bandwidth Management