4
Advanced Setup Options
In addition to its basic setup options, the Zoom IG-4160 Internet Gateway includes options for specialized, or advanced, settings. If you are like most users, you will not need these options. Your Gateway is designed so that the basic setup settings are sufficient for most users. This chapter is applicable to you only if you need to perform sophisticated tasks such as those listed below:
•Modify the firewall to open up access portals to special applications, such as games or videoconferencing.
•Configure the LAN DHCP server.
•Configure a Virtual Server.
•Configure a DMZ Host.
•Use a non-standard FTP port.
•Configure LAN MAC Addresses.
•Configure the Router Access Control option.
•Use the WAN Ping Response Disable feature.
•Use the Clone WAN MAC Address option.
4.1 Modifying Firewall Settings
If you want to use special applications such as certain Internet games, videoconferencing, and Internet telephony, you often have to use non-standard ports or multiple open ports. A port is an endpoint to a logical connection; the port number identifies the logical channel being used; for example, port 21 is associated with FTP (File Transport Protocol). By definition, your Gateway’s firewall prevents unauthorized access to any open ports. Some applications require access to ports that your firewall would normally deny. You must modify the Gateway’s firewall settings if you want to accommodate these types of applications.
Chapter 4: Advanced Setup Options | 27 |
