Apply — Click “Apply,” then “Save” to set and save any changes.
3.5.3 Virtual Server Setup
This screen lets you specify some services to be visible by outside users. The router can detect an incoming service request and forward it to the specific local computer to handle it. For example, a user can assign a PC in the LAN to act as a Web server inside and expose it to the outside network. An outside user can browse inside the Web server directly while it is protected by NAT.
Rule Name — Enter a description of this setting for identification.
Internal Server IP Address — This is the LAN client/host IP address that the external port number packet will be sent to.
Protocol — Select a protocol type from the
External Port — This is the port number that is open to the outside (public) Internet. Internal Port — This is the internal PC port (in most cases, this is identical to the external port. Add — Click after filling in the fields to add the rule and display the Current Virtual Server Table,
which shows the valid virtual servers in the router. To remove a listing from the table, select it and click “Delete.”
Apply — Click “Apply,” then “Save” to set and save any changes.
3.5.4 Port Triggering
This screen allows the router to watch outgoing data for specific port numbers. The IP address of the computer that sends the matching data is remembered by the router so that when the requested data returns through the router the data is pulled back to the proper computer by way of IP address and port mapping rules.
Predefined Trigger Rules — Select one of the predefined rules from the
Trigger Protocol — Select either “TCP” or “UDP” as the outbound port protocol. Trigger Port — This is the out going (outbound) range of port numbers for this particular
application. NOTE: Individual port numbers are separated by a comma (e.g., 47824, 5776). To input a port range, use a hyphen to separate the two port numbers (e.g.,
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