Appendix E Services
P-660HN-FxZ Series User’s Guide
373
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.
SYSLOG
UDP
514
Syslog allows you to send system logs to a
UNIX server.
TACACS
UDP
49
Login Host Protocol used for (Terminal
Access Controller Access Control System).
TELNET
TCP
23
Telnet is the login and terminal emulation
protocol common on the Internet and in
UNIX environments. It operates over TCP/
IP networks. Its primary function is to allow
users to log into remote host systems.
Table 146
Examples of Services (continued)
NAME
PROTOCOL
PORT(S)
DESCRIPTION