Appendix D Services
VMG1312-B Series User’s Guide
316
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).
POP3S
TCP
995
This is a more secure version of POP3 that runs
over SSL.
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.
ROADRUNNER
TCP/UDP
1026
This is an ISP that provides services mainly for
cable modems.
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
The Simple File Transfer Protocol is an old way of
transferring files between computers.
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.
SMTPS
TCP
465
This is a more secure version of SMTP that runs
over SSL.
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.
SSDP
UDP
1900
The Simple Service Discovery Protocol supports
Universal Plug-and-Play (UPnP).
SSH
TCP/UDP
22
Secure Shell Remote Login Program.
STRM WORKS
UDP
1558
Stream Works Protocol.
Table 134
Examples of Services (continued)
NAME
PROTOCOL
PORT(S)
DESCRIPTION