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ZyWALL 50 Internet Security Gateway
10-8 Creating Custom Rules
Table 10-2 Predefined Services
SERVICE DESCRIPTION
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.
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.
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(TCP/UDP:162)
Traps for use with the SNMP (RFC:1215).
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.