Nat - TP-Link TD-W300KIT User Manual

300mbps wireless n adsl2+ modem router

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gateway must be the IP address of one of the remote nodes.

Metric: Metric represents the "cost" of transmission for routing purposes. IP Routing uses

hop count as the measurement of cost, with a minimum of 1 for directly connected networks.

Enter a number that approximates the cost for this link. The number need not to be precise,

but it must between 1 and 15. In practice, 2 or 3 is usually a good number.

Announced in RIP: This parameter determines if the ADSL router will include the route to

this remote node in its RIP broadcasts. If set to Yes, the route to this remote node will be

propagated to other hosts through RIP broadcasts. If No, this route is kept private and is not

included in RIP broadcasts.

4.4.3 NAT

Choose "Advanced Setup→NAT" menu, you can setup the NAT (Network Address Translation)

function for the Router (shown in Figure 4-28).

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

NAT 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 4-6) to activate the function.

Number 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 4-28, 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.

300Mbps Wireless N ADSL2+ Modem Router User Guide

Figure 4-28

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