ZyXEL Communications ES-100, User Manual

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Appendix B Common Services
MES-2110 User’s Guide
223
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).
Table 87 Commonly Used Services (continued)
NAME PROTOCOL PORT(S) DESCRIPTION