TD-8817BADSL2/2+ Ethernet/USB Router User Guide

Figure 4-16

¾Virtual Circuit: Enter Virtual Circuit Index that you plan to setup for the NAT function.

¾NAT Status: This field shows the current status of the NAT function for the current VC. You can go to the previous screen (shown in Figure 4-4)to activate the function.

¾Number of IPs; This field is to specify how many IPs are provided by your ISP for current VC. It can be single IP or multiple IPs. We select Multiple to explain.

)Note:

For VCs with single IP, they share the same DMZ and Virtual servers; for VCs with multiple IPs, each VC can set DMZ and Virtual servers. Furthermore, for VCs with multiple IPs, they can define the Address Mapping rules; for VCs with single IP, since they have only one IP, there is no need to individually define the Address Mapping rule.

4.4.3.1. DMZ

Choose “Advanced Setup→NAT→DMZ” in Figure 4-16,you can configure the DMZ host in the next screen. A DMZ (demilitarized zone) is a host between a private local network and the outside public network. It prevents outside users from getting direct access to a server that has company data. Users of the public network outside the company can access to the DMZ host.

Figure 4-17

¾DMZ Host IP Address: Enter the specified IP Address for DMZ host on the LAN side.

4.4.3.2. Virtual Server

Choose “Advanced Setup→NAT→Virtual Server” in Figure 4-16,you can configure the Virtual Server in the next screen.

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