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| Prestige 662H/HW Series User’s Guide | |
| Table 48 Predefined Services (continued) | ||
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| SERVICE | DESCRIPTION |
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| BOOTP_SERVER(UDP:67) | DHCP Server. |
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| A popular videoconferencing solution from White Pines Software. |
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| 24032) |
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| DNS(UDP/TCP:53) | Domain Name Server, a service that matches web names (e.g. |
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| www.zyxel.com) to IP numbers. |
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| FINGER(TCP:79) | Finger is a UNIX or Internet related command that can be used to find |
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| out if a user is logged on. |
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| FTP(TCP:20.21) | File Transfer Program, a program to enable fast transfer of files, |
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| including large files that may not be possible by |
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| H.323(TCP:1720) | Net Meeting uses this protocol. |
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| HTTP(TCP:80) | Hyper Text Transfer Protocol - a client/server protocol for the world |
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| wide web. |
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| HTTPS | HTTPS is a secured http session often used in |
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| ICQ(UDP:4000) | This is a popular Internet chat program. |
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| IPSEC_TRANSPORT/ | The IPSEC AH (Authentication Header) tunneling protocol uses this |
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| TUNNEL(AH:0) | service. |
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| IPSEC_TUNNEL(ESP:0) | The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol |
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| uses this service. |
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| IRC(TCP/UDP:6667) | This is another popular Internet chat program. |
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| MSN Messenger(TCP:1863) | Microsoft Networks’ messenger service uses this protocol. |
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| MULTICAST(IGMP:0) | Internet Group Multicast Protocol is used when sending packets to a |
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| specific group of hosts. |
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| NEWS(TCP:144) | A protocol for news groups. |
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| NFS(UDP:2049) | Network File System - NFS is a client/server distributed file service that |
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| provides transparent |
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| NNTP(TCP:119) | Network News Transport Protocol is the delivery mechanism for the |
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| USENET newsgroup service. |
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| PING(ICMP:0) | Packet INternet Groper is a protocol that sends out ICMP echo |
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| requests to test whether or not a remote host is reachable. |
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| POP3(TCP:110) | Post Office Protocol version 3 lets a client computer get |
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| POP3 server through a temporary connection (TCP/IP or other). |
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| PPTP(TCP:1723) |
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| public networks. This is the control channel. |
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| PPTP_TUNNEL(GRE:0) |
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| public networks. This is the data channel. |
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| RCMD(TCP:512) | Remote Command Service. |
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| REAL_AUDIO(TCP:7070) | A streaming audio service that enables real time sound over the web. |
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| REXEC(TCP:514) | Remote Execution Daemon. |
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| RLOGIN(TCP:513) | Remote Login. |
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| RTELNET(TCP:107) | Remote Telnet. |
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| RTSP(TCP/UDP:554) | The Real Time Streaming (media control) Protocol (RTSP) is a remote |
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| control for multimedia on the Internet. |
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| SFTP(TCP:115) | Simple File Transfer Protocol. |
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Chapter 14 Firewall Configuration | 174 |