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Appendix D Common Services
LTE6100 User’s Guide
178
ICMP User-Defined 1 Internet Control Message Protocol is often used for
diagnostic or routing purposes.
ICQ UDP 4000 This is a popular Internet chat program.
IGMP (MULTICAST) User-Defined 2 Internet Group Management Protocol is used when
sending packets to a specific group of hosts.
IKE UDP 500 The Internet Key Exchange algorithm is used for key
distribution and management.
IRC TCP/UDP 6667 This is another popular Internet chat program.
MSN Messenger TCP 1863 Microsoft Networks’ messenger service uses this protocol.
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 User-Defined 1 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)
User-Defined 47 PPTP (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.
STRM WORKS UDP 1558 Stream Works Protocol.
SYSLOG UDP 514 Syslog allows you to send system logs to a UNIX server.
Table 68 Commonly Used Services (continued)
NAME PROTOCOL PORT(S) DESCRIPTION