Zyxel-communications 5 Series Manual do Utilizador descarregar pdf (Página 753)

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ZyWALL 5/35/70 Series User’s Guide

Appendix F Common Services 753

Appendix F

Common Services

The following table lists some commonly-used services and their associated protocols and port

numbers. For a comprehensive list of port numbers, ICMP type/code numbers and services,

visit the IANA (Internet Assigned Number Authority) web site.

• 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. Please refer to RFC 1700 for further

information about port numbers.

• 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.

• Description: This is a brief explanation of the applications that use this service or the

situations in which this service is used.

Table 284 Commonly Used Services

NAME PROTOCOL PORT(S) DESCRIPTION

(IPSEC_TUNNEL)

User-Defined 51 The IPSEC AH (Authentication Header)

tunneling protocol uses this service.

AIM/New-ICQ TCP 5190 AOL’s Internet Messenger service. It is also

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

24032

A popular videoconferencing solution from

White Pines Software.

DNS TCP/UDP 53 Domain Name Server, a service that

matches web names (e.g. www.zyxel.com

)

to IP numbers.

ESP

(IPSEC_TUNNEL)

User-Defined 50 The IPSEC ESP (Encapsulation 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.

FTP TCP

TCP

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.

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