ZyXEL Communications LTE3301-PLUS, Руководство пользователя

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Chapter 11 Network Address Translation (NAT)
Nebula Mobile Router User’s Guide
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The following table describes the labels in this screen.
11.4 DMZ
Use this screen to specify the IP address of a default server to receive packets from ports not specified in
the
Port Triggering screen. The DMZ (DeMilitarized Zone) is a network between the WAN and the LAN
that is accessible to devices on both the WAN and LAN with firewall protection. Devices on the WAN
can initiate connections to devices on the DMZ but not to those on the LAN.
You can put public servers, such as email, web, and FTP servers, on the DMZ to provide services on both
the WAN and LAN. To use this feature, you first need to assign a DMZ host. Click
Network Setting > NAT >
DMZ to open the DMZ screen.
Note: Use an IPv4 address for the DMZ server.
Note: Enter the IP address of the default server in the Default Server Address field, and click
Apply to activate the DMZ host. Otherwise, clear the IP address in the Default Server
Address field, and click Apply to deactivate the DMZ host.
Table 74 Network Setting > NAT > Port Triggering: Add or Edit
LABEL DESCRIPTION
Active Click to enable (blue switch) or disable (gray switch) to activate or deactivate the rule.
Service Name Enter a name to identify this rule using keyboard characters (A – Z, a – z, 1 – 2 and so on).
WAN Interface Select a WAN interface for which you want to configure port triggering rules.
Trigger Start Port The trigger port is a port (or a range of ports) that causes (or triggers) the Zyxel Device to record
the IP address of the LAN computer that sent the traffic to a server on the WAN.
Type a port number or the starting port number in a range of port numbers.
Trigger End Port Type a port number or the ending port number in a range of port numbers.
Trigger Protocol Select the transport layer protocol from TCP , UDP , or TCP/UDP .
Open Start Port The open port is a port (or a range of ports) that a server on the WAN uses when it sends out a
particular service. The Zyxel Device forwards the traffic with this port (or range of ports) to the
client computer on the LAN that requested the service.
Type a port number or the starting port number in a range of port numbers.
Open End Port Type a port number or the ending port number in a range of port numbers.
Open Protocol Select the transport layer protocol from TCP , UDP , or TCP/UDP .
Cancel Click Cancel to exit this screen without saving.
OK Click OK to save your changes.