User manual ZYXEL P-330W V2 V1.90

[. . . ] P-330W, P-330W v2 802. 11g Secure Wireless Internet Sharing Router User's Guide Version 1. 90 1/2008 Edition 1 DEFAULT LOGIN IP Address User Name Password http://192. 168. 10. 1 admin 1234 www. zyxel. com About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to configure the P-330W using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology. Related Documentation · Quick Start Guide The Quick Start Guide is designed to help you get up and running right away. It contains information on setting up your network and configuring for Internet access. [. . . ] Click Update to save your changes back to the P-330W. Click Reset to begin configuring this screen afresh. P-330W User's Guide 87 Chapter 7 Advanced Options 7. 4 DMZ If the DMZ Host Function is enabled, it means that you set up DMZ host at a particular computer to be exposed to the Internet so that some applications/software, especially Internet / online game can have two-way connections. A device acting as DMZ is not protected by the P330W's firewall. To enable DMZ, click ADVANCED then the DMZ link. The screen appears as shown. Figure 51 Advanced: DMZ The following table describes the labels in this screen. Table 30 Advanced: DMZ LABEL Enable DMZ Host IP Address Save Reset DESCRIPTION Select this check box to enable DMZ. Enter the IP address of the device you which to be accessible from the Internet. Click Save to save your changes back to the P-330W. Click Reset to begin configuring this screen afresh. 7. 5 Virtual Servers (Port Forwarding) The Virtual Server function is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that you can make visible to the outside world even though NAT makes your whole inside network appear as a single computer to the outside world. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers. You can allocate a server IP address that corresponds to a port or a range of ports. Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP. 88 P-330W User's Guide Chapter 7 Advanced Options The most often used port numbers are shown in the following table. Please refer to RFC 1700 for further information about port numbers. Table 31 Services and Port Numbers SERVICES ECHO FTP (File Transfer Protocol) SMTP (Simple Mail Transfer Protocol) DNS (Domain Name System) Finger HTTP (Hyper Text Transfer protocol or WWW, Web) POP3 (Post Office Protocol) NNTP (Network News Transport Protocol) SNMP (Simple Network Management Protocol) SNMP trap PPTP (Point-to-Point Tunneling Protocol) PORT NUMBER 7 21 25 53 79 80 110 119 161 162 1723 7. 5. 1 Configuring Servers Behind SUA (Example) Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), port 80 to another (B in the example) and assign a default server IP address of 192. 168. 10. 35 to a third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet Figure 52 Multiple Servers Behind NAT Example 7. 5. 2 Configuring Virtual Servers To configure Virtual Server, click ADVANCED then the VIRTUAL SERVERS link. The screen appears as shown. P-330W User's Guide 89 Chapter 7 Advanced Options Figure 53 Advanced: Virtual Servers The following table describes the labels in this screen. Table 32 Advanced: Virtual Servers LABEL Enable Virtual Servers Servers DESCRIPTION Put a check in the box to enable Virtual Servers By selection an option in the pull down menu, the P-330W will automatically populate the settings for the corresponding service. You can select to forward TCP, UDP, or both type of traffic. To forward only one port, enter it again in the End Port field. To specify a range of ports, enter the last port to be forwarded in the End Port field. [. . . ] Any replacement will consist of a new or re-manufactured functionally equivalent product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product has been modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions. Note Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. [. . . ]