ZyWALL 2 and ZyWALL 2WE

 

 

Table 16-2 Predefined Services

 

 

 

 

 

SERVICE

DESCRIPTION

 

 

 

 

 

 

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.

 

 

 

 

 

 

SMTP(TCP:25)

Simple Mail Transfer Protocol is the message-exchange standard for the

 

 

 

Internet. SMTP enables you to move messages from one e-mail server to

 

 

 

another.

 

 

SNMP(TCP/UDP:161)

Simple Network Management Program.

 

 

 

 

 

 

SNMP-

Traps for use with the SNMP (RFC:1215).

 

 

TRAPS(TCP/UDP:162)

 

 

 

 

 

 

 

SQL-NET(TCP:1521)

Structured Query Language is an interface to access data on many

 

 

 

different types of database systems, including mainframes, midrange

 

 

 

systems, UNIX systems and network servers.

 

 

SSH(TCP/UDP:22)

Secure Shell Remote Login Program.

 

 

 

 

 

Creating Custom Rules

16-9