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Appendix D Common Services
FMG3024-D10A / FMG3025-D10A Series User’s Guide
292
HTTP TCP 80 Hyper Text Transfer Protocol - a client/
server protocol for the world wide web.
HTTPS TCP 443 HTTPS is a secured http session often used
in e-commerce.
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.
Table 96 Commonly Used Services (continued)
NAME PROTOCOL PORT(S) DESCRIPTION