Appendix B Common Services
XS1930 Series User’s Guide
359
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 Multicast 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 email 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 email
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 185 Commonly Used Services (continued)
NAME
PROTOCOL
PORT(S)
DESCRIPTION