ZyWALL 5/35/70 Series User’s Guide

 

Table 75 Predefined Services (continued)

 

 

 

 

SERVICE

DESCRIPTION

 

 

 

 

IMAP(TCP/UDP:143)

Internet Message Access Protocol (IMAP) is used to access mail

 

 

stored on a remote mail server over a TCP/IP connection using port

 

 

143. IMAP has shorter response times than POP3.

 

IMAPS(TCP/UDP:993)

IMAP over TLS/SSL (IMAPS) is a secure protocol (that encrypts

 

 

IMAP traffic) for receiving mail using a TLS/SSL connection.

 

AX.25(AX.25:0)

AX.25 (Amateur X.25, an “Amateur” version of X.25) is the

 

 

communications protocol used for packet radio.

 

IPv6(IPv6:0)

IPv6 (Internet Protocol version 6) is a protocol designed by the IETF

 

 

to replace and solve many problems of the version 4 (IPv4).

 

IPSEC_ TRANSPORT /

The IPSEC AH (Authentication Header) tunneling protocol uses this

 

TUNNEL(AH:0)

service.

 

IPSEC_TUNNEL(ESP:0)

The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol

 

 

uses this service.

 

IRC(TCP/UDP:6667)

This is another popular Internet chat program.

 

 

 

 

MSN(TCP:1863)

Microsoft Networks’ messenger service uses this protocol.

 

 

 

 

MULTICAST(IGMP:0)

Internet Group Multicast Protocol is used when sending packets to a

 

 

specific group of hosts.

 

NetBIOS(TCP/UDP:137~139,

NetBIOS (Network Basic Input/Output System) are TCP or UDP

 

445)

broadcast packets that enable a computer to connect to and

 

 

communicate with a LAN.

 

NEWS(TCP:144)

A protocol for news groups.

 

 

 

 

NFS(UDP:2049)

Network File System – NFS is a client/server distributed file service

 

 

that provides transparent file sharing for network environments.

 

NNTP(TCP:119)

Network News Transport Protocol is the delivery mechanism for the

 

 

USENET newsgroup service.

 

POP3(TCP:110)

Post Office Protocol version 3 lets a client computer get e-mail from a

 

 

POP3 server through a temporary connection (TCP/IP or other).

 

POP3S(TCP/UDP:995)

POP3 over TLS/SSL allows users to download mail over a secure

 

 

POP3 connection using TLS/SSL.

 

PPTP(TCP:1723)

Point-to-Point Tunneling Protocol enables secure transfer of data

 

 

over public networks. This is the control channel.

 

PPTP_TUNNEL(GRE:0)

Point-to-Point Tunneling Protocol enables secure transfer of data

 

 

over public networks. This is the data channel.

 

RCMD(TCP:512)

Remote Command Service.

 

 

 

 

REAL_AUDIO(TCP:7070)

A streaming audio service that enables real time sound over the web.

 

 

 

 

REXEC(TCP:514)

Remote Execution Daemon.

 

 

 

 

RLOGIN(TCP:513)

Remote Login.

 

 

 

 

ROADRUNNER(TCP/

This is Time Warner’s cable modem session management protocol. It

 

UDP:1026)

handles authentication and dynamic addressing.

 

RTELNET(TCP:107)

Remote Telnet.

 

 

 

 

RTSP(TCP/UDP:554)

The Real Time Streaming (media control) Protocol (RTSP) is a

 

 

remote control for multimedia on the Internet.

 

SFTP(TCP:115)

Simple File Transfer Protocol.

 

 

 

Chapter 11 Firewall Screens

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