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Prestige 2602H/HW Series User’s Guide
Chapter 14 Firewall Configuration 197
HTTP(TCP:80) Hyper Text Transfer Protocol - a client/server protocol for the world
wide web.
HTTPS HTTPS is a secured http session often used in e-commerce.
ICQ(UDP:4000) This is a popular Internet chat program.
IKE(UDP:500) The Internet Key Exchange algorithm is used for key distribution and
management.
IP(AX.25:0) AX.25 (Amateur X.25, an “Amateur” version of X.25) is the
communications protocol used for packet radio.
IP(IPv6:0) IPv6 (Internet Protocol version 6) is a protocol designed by the IETF to
replace and solve many problems of the version 4 (IPv4).
IPSEC_TRANSPORT/
TUNNEL(AH:0)
The IPSEC AH (Authentication Header) tunneling protocol uses this
service.
IPSEC_TUNNEL(ESP:0) The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol
uses this service.
IRC(TCP/UDP:6667) This is another popular Internet chat program.
MSN Messenger(TCP:1863) Microsoft Networks’ messenger service uses this protocol.
MULTICAST(IGMP:0) Internet Group Multicast Protocol is used when sending packets to a
specific group of hosts.
NetBIOS(TCP/UDP:137~139,
45)
NetBIOS (Network Basic Input/Output System) are TCP or UDP
broadcast packets that enable a computer to connect to and
communicate with a LAN.
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(ICMP:0) 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:0) 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.
Table 59 Predefined Services (continued)
SERVICE DESCRIPTION