iBall Baton iB-WRA300N3G, Руководство пользователя

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iB-WRA300N3G 300M Wireless-N ADSL2+ 3G Router User Guide
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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).
Figure 4-28
¾ Virtual Circuit: Enter Virtual Circuit Index that you plan to setup for the NAT function.
¾ 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.
¾
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.