ZyXEL Communications P-660H-T1 v2, User Manual

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Chapter 9 Firewall Configuration
P-660H-Tx v2 User’s Guide
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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.
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.
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.
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) Simole Service Discovery Protocol (SSDP) is a discovery service
searching for Universal Plug and Play devices on your home network
or upstream Internet gateways using DUDP port 1900.
Table 43 Predefined Services (continued)
SERVICE DESCRIPTION