ZyWALL 2 Series User’s Guide

 

Table 11-5 Predefined Services

 

 

 

 

 

SERVICE

DESCRIPTION

 

 

 

 

 

 

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 Messenger(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.

 

 

 

 

 

 

NEW-ICQ(TCP:5190)

An Internet chat program.

 

 

 

 

 

 

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.

 

 

PING(ICMP:0)

Packet INternet Groper is a protocol that sends out ICMP echo requests to

 

 

 

test whether or not a remote host is reachable.

 

 

 

 

 

 

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).

 

 

 

 

 

 

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.

 

 

 

 

 

 

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.

 

 

 

 

 

Firewall Screens

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