ZyXEL Communications PMG5318-B20B, Руководство пользователя

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Chapter 6 Network Address Translation (NAT)
PMG5318-B20B User’s Guide
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6.3 DMZ Host
Click Advanced Setup > NAT > DMZ Host to specify the IP address of a default server to receive
packets from ports not specified in the Port Forwarding screen.
Figure 32
DMZ Host
Table 26
Port Triggering: Add
LABEL DESCRIPTION
User Interface Select a WAN interface for which you want to configure port triggering rules.
Application
Name Choose an application from the drop-down list or select Custom application and enter a
name to identify this rule using keyboard characters (A-Z, a-z, 1-2 and so on).
Save/Apply Click this button to save your changes.
Trigger Port
Start The trigger port is a port (or a range of ports) that causes (or triggers) the GPON 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 Port
End 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 Port Start 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 GPON 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 Port End 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 .
Save/Apply Click this button to save your changes.
Table 27
DMZ Host
LABEL DESCRIPTION
DMZ Host IP
Address Enter the IP address which receives packets from ports that are not specified in the Port
Forwarding screen.
Note: If you do not assign a default server, the GPON Device discards all packets received
for ports not specified in the virtual server configuration.
Save/Apply Click this button to save your changes.