ZyXEL Communications EMG6765-Q10A User Manual page 201

Table 83 Commonly Used Services (continued)
NAME PROTOCOL
ICMP User-Defined
ICQ UDP
IGMP (MULTICAST) User-Defined
IKE UDP
IRC TCP/UDP
MSN Messenger TCP
NEW-ICQ TCP
NEWS TCP
NFS UDP
NNTP TCP
PING User-Defined
POP3 TCP
PPTP TCP
PPTP_TUNNEL (GRE) User-Defined
RCMD TCP
REAL_AUDIO TCP
REXEC TCP
RLOGIN TCP
RTELNET TCP
RTSP TCP/UDP
SFTP TCP
SMTP TCP
SNMP TCP/UDP
SNMP-TRAPS TCP/UDP
SQL-NET TCP
Appendix B Common Services
PORT(S) DESCRIPTION
1 Internet Control Message Protocol is often used for
diagnostic or routing purposes.
4000 This is a popular Internet chat program.
2 Internet Group Management Protocol is used when
sending packets to a specific group of hosts.
500 The Internet Key Exchange algorithm is used for key
distribution and management.
6667 This is another popular Internet chat program.
1863 Microsoft Networks' messenger service uses this
protocol.
5190 An Internet chat program.
144 A protocol for news groups.
2049 Network File System - NFS is a client/server distributed
file service that provides transparent file sharing for
network environments.
119 Network News Transport Protocol is the delivery
mechanism for the USENET newsgroup service.
1 Packet INternet Groper is a protocol that sends out
ICMP echo requests to test whether or not a remote
host is reachable.
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).
1723 Point-to-Point Tunneling Protocol enables secure
transfer of data over public networks. This is the
control channel.
47 PPTP (Point-to-Point Tunneling Protocol) enables
secure transfer of data over public networks. This is the
data channel.
512 Remote Command Service.
7070 A streaming audio service that enables real time
sound over the web.
514 Remote Execution Daemon.
513 Remote Login.
107 Remote Telnet.
554 The Real Time Streaming (media control) Protocol
(RTSP) is a remote control for multimedia on the
Internet.
115 Simple File Transfer Protocol.
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.
161 Simple Network Management Program.
162 Traps for use with the SNMP (RFC:1215).
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.
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